View source for List of mergers and acquisitions by IBM

{{Short description|none}}
{{Incomplete list|date=August 2021}} 
[[File:IBM logo.svg|thumb|IBM logo]]
[[IBM]] has undergone a large number of [[mergers and acquisitions]] during a corporate history lasting over a century; the company has also produced a number of [[Corporate spin-off|spinoffs]] during that time.

The [[Takeover|acquisition]] date listed is the date of the agreement between IBM and the subject of the acquisition. The value of each acquisition is listed in [[USD]] because IBM is based in the [[United States]]. If the value of an acquisition is not listed, then it is undisclosed.

==Precursors 1889–1910==

[[Herman Hollerith]] initially did business under his own name, as ''The Hollerith Electric Tabulating System'', specialising in [[punched card]] [[Unit record equipment|data processing equipment]].<ref>Austrian, 1982, p. 153.</ref> In 1896 he incorporated as the ''Tabulating Machine Company''.

*1889 [[Bundy Manufacturing Company]] incorporated.
*1891 Computing Scale Company incorporated.
*1893 Dey Patents Company (soon renamed the Dey Time Register Company) incorporated.
*1894 Willard & Frick Manufacturing Company ([[Rochester, New York]]) incorporated.
*1896
**Detroit Automatic Scale Company incorporated.
**Hollerith incorporates the [[Tabulating Machine Company]]. Will be reincorporated in 1905.
*1899 Standard Time Stamp Company acquired by Bundy Manufacturing Company.
*1900
**[[International Time Recording Company]] incorporated, acquiring the time-recording business of the Bundy Manufacturing Company and the Willard & Frick Manufacturing Company (Rochester).
**Chicago Time-Register Company acquired by International Time Recording Company.
**Dayton Moneyweight Scale Company acquired by Computing Scale Company.
**Detroit Automatic Scale Company acquired by Computing Scale Company.
*1905 Hollerith reincorporates as ''The Tabulating Machine Company''.<ref>Engelbourg, 1954, p. 52.</ref>
*1907 Dey Time Register Company acquired by International Time Recording Company.
*1908 Syracuse Time Recorder Company acquired by International Time Recording Company.

==[[Computing-Tabulating-Recording Company]], 1911 ==
Since the 1960s or earlier, IBM has described its formation as a merger of three companies: The Tabulating Machine Company (1880s origin in Washington, DC), the International Time Recording Company (ITR; 1900, Endicott), and the Computing Scale Company of America (1901, Dayton, Ohio).<ref>Austrian (1982) p.312</ref><ref>Belden, Martin; Belden, Marva (1961). ''The Lengthening Shadow – The Life of Thomas J. Watson'', Little, Brown; p.92</ref><ref name=IBMArchive>{{cite web|url=http://www-03.ibm.com/ibm/history/exhibits/logo/logo_4.html|archive-url=https://web.archive.org/web/20041221233509/http://www-03.ibm.com/ibm/history/exhibits/logo/logo_4.html|url-status=dead|archive-date=December 21, 2004| title=IBM Archives: Computing-Tabulating-Recording Company (1911–1924)| date=23 January 2003}}</ref> However, there was no merger, it was an [[Consolidation (business)|amalgamation]], and an amalgamation of four, not three, companies.<ref name=nytimes>[https://timesmachine.nytimes.com/timesmachine/1911/06/10/104783303.pdf NY Times June 10, 1911 ''Tabulating Concerns Unite: Flint & Co. Bring Four Together with $19,000,000 capital'']</ref> The 1911 CTR [[share capital|stock]] [[prospectus (finance)|prospectus]] states that the Bundy Manufacturing Company was also included.<ref name="USInvestor1911">{{cite book |last1= Bennett|first1= Frank P. |author2=Company  |title= United States Investor |volume= 22, Part 2 |date=17 June 1911 |page=1298 (26) | url=https://books.google.com/books?id=BQkhAQAAMAAJ&q=hollerith+intitle%3Ainvestor&pg=RA4-PA26  }}</ref>
While ITR had acquired its time recording business in 1900 Bundy had remained a separate entity producing an adding machine and other wares.  
*[[Tabulating Machine Company|The Tabulating Machine Company]]
*Computing Scale Corporation
*[[Time clock|International Time Recording Company]]
*[[Bundy Manufacturing Company]]

CTR owned the stock of the four companies; CTR neither produced nor sold any product; the four companies continued to operate, as before, under their own names.

==Acquisitions during 1912–1999==

=== 1912–1929 ===
*1917
**American Automatic Scale Company acquired as International Scale Company.
**CTR consolidates three already-existing Canadian companies: The Canadian Tabulating Machine Co., Ltd, the International Time Recording Co. of Canada, Ltd., and the Computing Scale Co. of Canada, Ltd., in a new holding company, International Business Machines Co., Ltd.<ref>Moody's 1918 Manual of Railroads and Corporation Securities</ref>
*1921
**Pierce Accounting Machine Company (asset purchase).
**Ticketograph Company (of Chicago).
*1923
**[[Dehomag]]<ref>{{cite book | editor-last = Aspray |editor-first = William | title = Computing Before Computers |publisher = Iowa State University Press | year = 1990 |isbn = 0-8138-0047-1 |page = 137}}</ref>
*1924
**CTR was renamed "IBM".

===1930–1949===
*1930 Automatic Accounting Scale Company.
*1932 National Counting Scale Company.
*1933 The separate companies were integrated in 1933 as IBM and the holding company eliminated.<ref>{{cite book |last= Rodgers |first= Williams |title= THINK |publisher= Stein and Day |year= 1969 |page=83}}</ref>
*1933 Electromatic Typewriters Inc. (See: [[IBM Electric typewriter|IBM Electromatic typewriter]])
*1941 Munitions Manufacturing Corporation.

===1950–1969===
*1959 Pierce Wire Recorder Corporation.
*1964 [[Science Research Associates]].

===1970–1989===
*1974 CML Satellite Corporation; renamed [[Satellite Business Systems]] (SBS).
*1984 [[ROLM]]
*1986 RealCom Communications Corporation.

===1990–1999===
*1993
**CGI Informatique (France), bought in 1993, ran independently until 1996, and was then progressively absorbed by IBM, country by country, this process being achieved in 1999.
*1994
**[[Transarc]] (Transarc Corporation bought by IBM in 1994, became part of IBM proper in 1999 as the IBM Pittsburgh Lab)<ref>{{cite web | title = Acquisition To Bolster Ibm's Networking | work = Bloomberg Business News | publisher = SunSentinel.com | date = 17 August 1994 | url = http://articles.sun-sentinel.com/1994-08-17/business/9408160445_1_transarc-transaction-processing-ibm | archive-url = https://web.archive.org/web/20130625111551/http://articles.sun-sentinel.com/1994-08-17/business/9408160445_1_transarc-transaction-processing-ibm | url-status = dead | archive-date = June 25, 2013 | access-date =  2 November 2011}}</ref>
*1995
**[[Lotus Software|Lotus Development Corporation]] for $3.5 billion.
**[[Information Systems Management Canada|Information Systems Management Canada (ISM Canada)]]
**K3 Group Ltd.
**Chrysler Systems Leasing (February 1995)
*1996
**Wilkerson Group
**[[Tivoli Systems, Inc.]] for $743 million.
**Data Sciences Ltd, prior to 1991 comprising ''Thorn EMI Software'', ''Datasolve'' and the Corporate Management Services Division of Thorn EMI, for £95 million.<ref name=GT-1996-33-01/>
**[[Object Technology International]] (OTI) is acquired by IBM
**Cyclade Consultants (Netherlands)
**Fairway Technologies
**Professional Data Management, Inc. / LifePRO<ref>[http://www.insurancetech.com/pdma-acquires-lifepro-assets-from-ibm/d/d-id/1307155d41d.html PDMA Acquires LifePRO Assets from IBM (March 03 2001)]</ref>
*1997
**Software Artistry for $200 million.
**Unison Software.
**Dominion Semiconductor (Manassas, VA) is created by forming a 50/50 joint venture with Toshiba to produce 64MB and 256MB DRAM chips.  Administrative offices are located in Building 131 the former IBM Federal Systems campus now primarily owned by Lockheed Martin; the new state-of-the-art fabrication facility was built from on adjacent land.
*1998 
**CommQuest Technologies.
**DataBeam Corporation, Lexington, KY
**[[Ubique (company)|Ubique Ltd.]], Israel
*1999
**Dascom Technologies (USA), A subsidiary of Dascom Holdings.
**[[Mylex|Mylex Corporation]].
**[[Sequent Computer Systems]] for $810 million.

==Acquisitions from 2000 - 2019 ==
Number of acquisitions per year according to table below:
* In 2019 IBM acquired 1 company
* In 2018 IBM acquired 3 companies
* In 2017 IBM acquired 3 companies
* In 2016 IBM acquired 12 companies
* In 2015 IBM acquired 13 companies
* In 2014 IBM acquired 4 companies
* In 2013 IBM acquired 9 companies
* In 2012 IBM acquired 9 companies
* In 2011 IBM acquired 8 companies

{| class="wikitable sortable"
|-
! Acquired on
! Company
! Business
! Country
! Value ([[United States Dollar|USD]]) 
! class="unsortable" |References
|-
| {{dts|2001|June|7}}
| Mainspring
| [[Business strategy]] consulting
| {{flag|USA}}
| style="text-align:right;"| $80,000,000
| style="text-align:center;"| <ref>{{cite press release | title = IBM Completes Mainspring Acquisition | publisher = [[IBM]] | date = 2001-06-07 | url =http://www-03.ibm.com/press/us/en/pressrelease/1219.wss | archive-url =https://archive.today/20120721032539/http://www-03.ibm.com/press/us/en/pressrelease/1219.wss | url-status =dead | archive-date =July 21, 2012 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2001|July|2}}
| [[Informix Corporation]]
| [[Database software]]
| {{flag|USA}}
| style="text-align:right;"| $1,000,000,000
| style="text-align:center;"| <ref>{{cite press release | title = IBM Completes Acquisition of Informix Database Assets | publisher = [[IBM]] | date = 2001-07-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/1174.wss | archive-url =https://web.archive.org/web/20060911170510/http://www-03.ibm.com/press/us/en/pressrelease/1174.wss | url-status =dead | archive-date =September 11, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Jan|14}}
| CrossWorlds Software, Inc.
| [[Software]]
| {{flag|USA}}
| style="text-align:right;"| ${{nts|129000000}}
| style="text-align:center;"| <ref>{{cite press release | title = IBM buys CrossWorlds Software for $129 million | publisher = [[Computerworld]] | date = 2002-01-14 | url =https://www.computerworld.com/article/2584852/ibm-buys-crossworlds-software-for--129-million.html | access-date = 2021-05-17}}</ref>
|-
| {{dts|2002|June|25}}
| Metamerge
| [[Identity management]]
| {{flag|NOR}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Metamerge, Adds Directory Integration Software to IBM's Infrastructure Portfolio | publisher = [[IBM]] | date =2002-06-25 | url =http://www-03.ibm.com/press/us/en/pressrelease/631.wss | archive-url =https://web.archive.org/web/20060516055044/http://www-03.ibm.com/press/us/en/pressrelease/631.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Aug|19}}
| Trellisoft, Inc.
| [[Enterprise storage]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires TrelliSoft, Extends Leadership in Storage Management Software Market | publisher = [[IBM]] | date =2002-08-29 | url =http://www-03.ibm.com/press/us/en/pressrelease/547.wss | archive-url =https://web.archive.org/web/20060516055102/http://www-03.ibm.com/press/us/en/pressrelease/547.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Sep|12}}
| [[Holosofx|Holosofx, Inc.]]
| [[Business Process Management]]
| {{flag|USA}}, {{flag|EGY}} 
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Holosofx to Extend WebSphere Business Integration Software Portfolio | publisher = [[IBM]] | date =2002-09-12 | url = http://www-03.ibm.com/press/us/en/pressrelease/534.wss| archive-url = https://web.archive.org/web/20061030185534/http://www-03.ibm.com/press/us/en/pressrelease/534.wss| url-status = dead| archive-date = October 30, 2006| access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Oct|2}}
| PWC Consulting from [[PricewaterhouseCoopers]]
| Business Consulting and Technology Services
| {{flag|USA}}
| style="text-align:right;"| $3,500,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM, PricewaterhouseCoopers Complete Sale of PwC Consulting | publisher = [[IBM]] | date =2002-10-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/491.wss | archive-url =https://web.archive.org/web/20060516055040/http://www-03.ibm.com/press/us/en/pressrelease/491.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Oct|6}}
| Access360
| [[Software]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Access360 | publisher = [[IBM]] | date =2002-09-03 | url =http://www-03.ibm.com/press/us/en/pressrelease/545.wss | archive-url =https://web.archive.org/web/20060516055120/http://www-03.ibm.com/press/us/en/pressrelease/545.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Oct|7}}
| EADS Matra Datavision
| [[Product lifecycle management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire EADS Matra Datavision | publisher = [[IBM]] | date =2002-10-07 | url =http://www-03.ibm.com/press/us/en/pressrelease/481.wss | archive-url =https://web.archive.org/web/20060912005943/http://www-03.ibm.com/press/us/en/pressrelease/481.wss | url-status =dead | archive-date =September 12, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2002|Nov|15}}
| Tarian Software
| [[Records Management]]
| {{flag|CAN}}
| 
| style="text-align:center;"| <ref>{{cite press release | title = IBM Completes Acquisition Of Tarian Software| publisher = [[IBM]] | date =2002-11-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/428.wss | archive-url =https://web.archive.org/web/20060905071740/http://www-03.ibm.com/press/us/en/pressrelease/428.wss | url-status =dead | archive-date =September 5, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|Feb|21}}
| [[Rational Software|Rational Software Corporation]]
| [[Software Development]]
| {{flag|USA}}
| style="text-align:right;"| $2,100,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Rational Software | publisher = [[IBM]] | date =2003-02-21 | url =http://www-03.ibm.com/press/us/en/pressrelease/314.wss | archive-url =https://web.archive.org/web/20060516055058/http://www-03.ibm.com/press/us/en/pressrelease/314.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|May|14}}
| Think Dynamics
| [[Software]]
| {{flag|CAN}}
| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Think Dynamics | publisher = [[IBM]] | date =2003-05-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/214.wss | archive-url =https://web.archive.org/web/20060910000854/http://www-03.ibm.com/press/us/en/pressrelease/214.wss | url-status =dead | archive-date =September 10, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|July|1}}
| Information Laboratory
| [[Software]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title = Missing Ref | publisher = [[IBM]] }}</ref>
|-
| {{dts|2003|July|15}}
| Aptrix
| [[Software]]
| {{flag|AUS}}
| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Aptrix; Strengthens its Software Portfolio with Web Content Management Software | publisher = [[IBM]] | date =2003-07-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/5531.wss | archive-url =https://web.archive.org/web/20070228221449/http://www-03.ibm.com/press/us/en/pressrelease/5531.wss | url-status =dead | archive-date =February 28, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|Oct|17}}
| CrossAccess Corporation
| [[Enterprise Information Integration]]
| {{flag|USA}}
| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire CrossAccess Technology, Extends Leadership in Information Integration | publisher = [[IBM]] | date =2003-10-14 | url =http://www-03.ibm.com/press/us/en/pressrelease/6140.wss | archive-url =https://web.archive.org/web/20060911170522/http://www-03.ibm.com/press/us/en/pressrelease/6140.wss | url-status =dead | archive-date =September 11, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|Nov|13}}
| Productivity Solutions, Inc.
| [[Self checkout|Automated Self-Checkout Systems]]
| {{flag|USA}}
| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Retail Self-Checkout Leader, PSI | publisher = [[IBM]] | date =2003-11-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/6335.wss | archive-url =https://web.archive.org/web/20060516055036/http://www-03.ibm.com/press/us/en/pressrelease/6335.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2003|Dec|17}}
| Green Pasture Software, Inc.
| [[Content management software]]
| {{flag|USA}}
| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Green Pasture Software, Extends Leadership in Enterprise Content Management | publisher = [[IBM]] | date =2003-12-17 | url =http://www-03.ibm.com/press/us/en/pressrelease/6504.wss | archive-url =https://web.archive.org/web/20060511210149/http://www-03.ibm.com/press/us/en/pressrelease/6504.wss | url-status =dead | archive-date =May 11, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|April|6}}
| Trigo Technologies
| Product information management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Trigo Technologies | publisher = [[IBM]] | date =2004-04-06 | url =http://www-03.ibm.com/press/us/en/pressrelease/6968.wss | archive-url =https://web.archive.org/web/20060516055109/http://www-03.ibm.com/press/us/en/pressrelease/6968.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|April|7}}
| Daksh e-Services
| BPO Services
| {{flag|IND}}
| style="text-align:right;"| ${{nts|170000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM in $170m Indian call centre deal | publisher =[[IBM]] | date =2004-04-07 | url =http://www-935.ibm.com/services/us/gbs/bus/html/dakshnews_07apr04-ft.html | access-date =2008-10-27 }}{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|-
| {{dts|2004|April|13}}
| Business Continuity Services unit of Schlumberger
| [[IT Services]]
| {{flag|FRA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires the Business Continuity Services unit of Schlumberger | publisher = [[IBM]] | date =2004-04-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/6998.wss | archive-url =https://web.archive.org/web/20060911170534/http://www-03.ibm.com/press/us/en/pressrelease/6998.wss | url-status =dead | archive-date =September 11, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|June|7}}
| [[Candle Corporation]]
| Infrastructure management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Candle Corporation | publisher = [[IBM]] | date =2004-06-07 | url =http://www-03.ibm.com/press/us/en/pressrelease/7160.wss | archive-url =https://web.archive.org/web/20060910001337/http://www-03.ibm.com/press/us/en/pressrelease/7160.wss | url-status =dead | archive-date =September 10, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|July|14}}
| Alphablox Corporation
| [[Business intelligence]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Alphablox Corporation, Strengthens Leadership in Business Intelligence | publisher = [[IBM]] | date =2004-07-14 | url =http://www-03.ibm.com/press/us/en/pressrelease/7223.wss | archive-url =https://web.archive.org/web/20060909170132/http://www-03.ibm.com/press/us/en/pressrelease/7223.wss | url-status =dead | archive-date =September 9, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|July|29}}
| Cyanea Systems
| Application management software
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire Cyanea | publisher = [[IBM]] | date =2004-07-29 | url =http://www-03.ibm.com/press/us/en/pressrelease/7245.wss | archive-url =https://web.archive.org/web/20060516055020/http://www-03.ibm.com/press/us/en/pressrelease/7245.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|Oct|7}}
| Venetica
| [[Enterprise Information Integration]]
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Venetica | publisher = [[IBM]] | date =2004-10-07 | url =http://www-03.ibm.com/press/us/en/pressrelease/7327.wss | archive-url =https://web.archive.org/web/20060428015756/http://www-03.ibm.com/press/us/en/pressrelease/7327.wss | url-status =dead | archive-date =April 28, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|Nov|19}}
| Systemcorp ALG Ltd.
| Project Portfolio Management (PPM) software
| {{flag|CAN}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Systemcorp | publisher = [[IBM]] | date =2004-12-19 | url =http://www-03.ibm.com/press/us/en/pressrelease/7410.wss | archive-url =https://web.archive.org/web/20060513083602/http://www-03.ibm.com/press/us/en/pressrelease/7410.wss | url-status =dead | archive-date =May 13, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|Nov|23}}
| Liberty Insurance Services
| [[Business process]] services
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Liberty Insurance Services | publisher = [[IBM]] | date =2004-11-23 | url =http://www-03.ibm.com/press/us/en/pressrelease/7415.wss | archive-url =https://web.archive.org/web/20060516055113/http://www-03.ibm.com/press/us/en/pressrelease/7415.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|Dec|1}}
| Maersk Data and DMdata from [[Maersk]]
| [[IT Services]]
| {{flag|DEN}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Increases Consulting and IT Services Capability with Acquisitions and Seals Services Deals Worth in Excess of $1 Billion | publisher = [[IBM]] | date =2004-12-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/7432.wss | archive-url =https://web.archive.org/web/20090602172543/http://www-03.ibm.com/press/us/en/pressrelease/7432.wss | url-status =dead | archive-date =June 2, 2009 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2004|Dec|13}}
| KeyMRO
| [[Procurement]] Services
| {{flag|FRA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire KeyMRO, Procurement Services Leader in Europe and North America | publisher = [[IBM]] | date =2004-12-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/7455.wss | archive-url =https://web.archive.org/web/20060906105431/http://www-03.ibm.com/press/us/en/pressrelease/7455.wss | url-status =dead | archive-date =September 6, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|Jan|7}}
| Systems Research & Development 
| [[Identity management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires SRD, Breaks New Ground in Identity Resolution Software | publisher = [[IBM]] | date =2005-01-07 | url =http://www-03.ibm.com/press/us/en/pressrelease/7471.wss | archive-url =https://web.archive.org/web/20051225025106/http://www-03.ibm.com/press/us/en/pressrelease/7471.wss | url-status =dead | archive-date =December 25, 2005 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|March|16}}
| Corio
| Application Services
| {{flag|USA}}
| style="text-align:right;"| ${{nts|182000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Corio | publisher = [[IBM]] | date =2005-03-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/7567.wss | archive-url =https://web.archive.org/web/20060516055047/http://www-03.ibm.com/press/us/en/pressrelease/7567.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|April|29}}
| Ascential Software Corporation
| [[Enterprise Information Integration]]
| {{flag|USA}}
| style="text-align:right;"| $1,100,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition Of Ascential Software | publisher = [[IBM]] | date =2005-05-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/7642.wss | archive-url =https://web.archive.org/web/20051225020334/http://www-03.ibm.com/press/us/en/pressrelease/7642.wss | url-status =dead | archive-date =December 25, 2005 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|May|10}}
| Gluecode Software
| [[Application Server]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Gluecode Software; Acquisition Builds On IBM Support For Open Source Technology; Expands Customer And Business Partner Choice For WebSphere Software | publisher = [[IBM]] | date =2005-05-10 | url =http://www-03.ibm.com/press/us/en/pressrelease/7658.wss | archive-url =https://web.archive.org/web/20060516055105/http://www-03.ibm.com/press/us/en/pressrelease/7658.wss | url-status =dead | archive-date =May 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|June|23}}
| Meiosys
| Application Management
| {{flag|USA}}, {{flag|FRA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Meiosys | publisher = [[IBM]] | date =2005-06-23 | url =http://www-03.ibm.com/press/us/en/pressrelease/7755.wss | archive-url =https://web.archive.org/web/20051217150013/http://www-03.ibm.com/press/us/en/pressrelease/7755.wss | url-status =dead | archive-date =December 17, 2005 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|July|25}}
| PureEdge Solutions, Inc.
| [[Electronic document|Electronic Forms]]
| {{flag|CAN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Formally Acquires PureEdge Solutions Inc., Pledges Support for Emerging Electronic Forms Standard Called Xforms | publisher = [[IBM]] | date =2005-08-05 | url =http://www-03.ibm.com/press/us/en/pressrelease/7820.wss | archive-url =https://web.archive.org/web/20060820034055/http://www-03.ibm.com/press/us/en/pressrelease/7820.wss | url-status =dead | archive-date =August 20, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|July|27}}
| Isogon Corporation
| [[Asset Management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Isogon Corporation | publisher = [[IBM]] | date =2005-07-27 | url =http://www-03.ibm.com/press/us/en/pressrelease/7811.wss | archive-url =https://web.archive.org/web/20060911170728/http://www-03.ibm.com/press/us/en/pressrelease/7811.wss | url-status =dead | archive-date =September 11, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|Aug|2}}
| DWL
| [[Enterprise Information Integration]]
| {{flag|USA}}, {{flag|CAN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Formally Acquires DWL, Enhancing Data Integration Portfolio | publisher = [[IBM]] | date =2005-09-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/7867.wss | archive-url =https://web.archive.org/web/20060408015935/http://www-03.ibm.com/press/us/en/pressrelease/7867.wss | url-status =dead | archive-date =April 8, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|Oct|14}}
| [[DataPower|DataPower Technology, Inc.]]
| Service Oriented Architecture (SOA)
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release |title=IBM Acquires DataPower | publisher=[[IBM]] |date=2005-10-18 |url=http://www-03.ibm.com/press/us/en/pressrelease/7934.wss |access-date=2008-06-02 |url-status=dead |archive-url=https://web.archive.org/web/20051225024834/http://www-03.ibm.com/press/us/en/pressrelease/7934.wss |archive-date=25 December 2005}}</ref>
|-
| {{dts|2005|Nov|1}}
| iPhrase Systems, Inc.
| Information management software
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires the Business of iPhrase Systems, Inc. | publisher = [[IBM]] | date =2005-11-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/7952.wss | archive-url =https://web.archive.org/web/20051225023235/http://www-03.ibm.com/press/us/en/pressrelease/7952.wss | url-status =dead | archive-date =December 25, 2005 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|Nov|10}}
| Network Solutions Pvt Ltd
| [[IT Services]]
| {{flag|IND}}
| style="text-align:right;"| 
| style="text-align:center;"| 
|-
| {{dts|2005|Nov|15}}
| Collation, Inc.
| [[Network management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Collation | publisher = [[IBM]] | date =2005-11-16 | url =http://www-306.ibm.com/software/tivoli/welcome/collation/press.html | access-date = 2008-06-02}}</ref>
|-
| {{dts|2005|Dec|20}}
| Bowstreet, Inc.
| Portal-based tools
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Bowstreet, Inc. to Help Customers Quickly Create Portals that Integrate Existing Business Applications | publisher = [[IBM]] | date =2005-12-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/19064.wss | archive-url =https://web.archive.org/web/20051223111622/http://www-03.ibm.com/press/us/en/pressrelease/19064.wss | url-status =dead | archive-date =December 23, 2005 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Jan|27}}
| [[Argus (monitoring software)|ARGUS Semiconductor Software]] From [[INFICON]]
| [[Semiconductor]] [[Manufacturing]] software
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires ARGUS Semiconductor Software From INFICON | publisher = [[IBM]] | date =2006-01-27 | url =http://www-03.ibm.com/press/us/en/pressrelease/19160.wss | archive-url =https://web.archive.org/web/20060210133638/http://www-03.ibm.com/press/us/en/pressrelease/19160.wss | url-status =dead | archive-date =February 10, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Jan|20}}
| CIMS Lab, Inc.
| IT Financial Management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires CIMS Lab, Inc. | publisher = [[IBM]] | date =2006-01-25 | url =http://www-03.ibm.com/press/us/en/pressrelease/19153.wss | archive-url =https://web.archive.org/web/20060130102732/http://www-03.ibm.com/press/us/en/pressrelease/19153.wss | url-status =dead | archive-date =January 30, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Feb|8}}
| Viacore, Inc.
| [[Supply chain optimization]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Enhance Its Supply Chain BTO Offering | publisher = [[IBM]] | date =2006-02-08 | url =http://www-03.ibm.com/press/us/en/pressrelease/19228.wss | archive-url =https://web.archive.org/web/20060814071400/http://www-03.ibm.com/press/us/en/pressrelease/19228.wss | url-status =dead | archive-date =August 14, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Feb|14}}
| [[Micromuse|Micromuse, Inc.]]
| [[Network management]]
| {{flag|USA}}
| style="text-align:right;"| ${{nts|865000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Micromuse Inc. | publisher = [[IBM]] | date =2006-02-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/19247.wss | archive-url =https://web.archive.org/web/20060314102827/http://www-03.ibm.com/press/us/en/pressrelease/19247.wss | url-status =dead | archive-date =March 14, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|March|16}}
| Language Analysis Systems
| [[Identity management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =Ibm To Acquire Language Analysis Systems, Inc. | publisher = [[IBM]] | date =2006-03-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/19394.wss | archive-url =https://web.archive.org/web/20060914165806/http://www-03.ibm.com/press/us/en/pressrelease/19394.wss | url-status =dead | archive-date =September 14, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|May|2}}
| BuildForge, Inc.
| [[Software Development]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires BuildForge, Inc. to Help Organizations Meet Compliance Demands | publisher = [[IBM]] | date =2006-05-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/19604.wss | archive-url =https://web.archive.org/web/20060520054211/http://www-03.ibm.com/press/us/en/pressrelease/19604.wss | url-status =dead | archive-date =May 20, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|May|5}}
| Unicorn Solutions, Inc.
| [[Metadata|Metadata management]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires the Business of Unicorn Solutions, Inc. | publisher =[[IBM]] | date =2006-05-08 | url =http://www-01.ibm.com/software/swnews/swnews.nsf/n/hhal6pgmpm?OpenDocument&Site=software | access-date =2008-06-02 | url-status =dead | archive-url =https://web.archive.org/web/20080619024008/http://www-01.ibm.com/software/swnews/swnews.nsf/n/hhal6pgmpm?OpenDocument&Site=software | archive-date =2008-06-19 }}</ref>
<ref>{{cite press release|title=IBM Acquires the Business of Unicorn Solutions, Inc. Archived version from web.archive.org |publisher=[[IBM]] |date=2008-06-19 |url=http://www-01.ibm.com/software/swnews/swnews.nsf/n/hhal6pgmpm?OpenDocument&Site=software |access-date=2008-06-02 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20080619024008/http://www-01.ibm.com/software/swnews/swnews.nsf/n/hhal6pgmpm?OpenDocument&Site=software |archive-date=2008-06-19 }}</ref>

|-
| {{dts|2006|June|27}}
| Rembo Technology
| [[Installation (computer programs)|Installation Software]]
| {{flag|SUI}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire Rembo Technology to Automate Software Installation | publisher = [[IBM]] | date =2006-05-18 | url =http://www-306.ibm.com/software/tivoli/welcome/rembo/press.html | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Aug|1}}
| Webify Solutions, Inc
| [[Service Oriented Architecture]] software
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Webify | publisher = [[IBM]] | date =2006-08-02| url =http://www-03.ibm.com/press/us/en/pressrelease/20058.wss | archive-url =https://web.archive.org/web/20060813224510/http://www-03.ibm.com/press/us/en/pressrelease/20058.wss | url-status =dead | archive-date =August 13, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Sep|6}}
| Global Value Solutions
| [[IT Services]]
| {{flag|BRA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Full Ownership of Brazilian SMB Services Firm Global Value Solutions | publisher = [[IBM]] | date =2006-09-06| url =http://www-03.ibm.com/press/us/en/pressrelease/20206.wss | archive-url =https://web.archive.org/web/20061104061829/http://www-03.ibm.com/press/us/en/pressrelease/20206.wss | url-status =dead | archive-date =November 4, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Oct|4}}
| DORANA product line from Ubiquity Pty Limited
| [[Asset Management]]
| {{flag|AUS}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Ubiquity's DORANA Product Line | publisher = [[IBM]] | date =2006-10-04 | url =http://www-03.ibm.com/press/us/en/pressrelease/20389.wss | archive-url =https://web.archive.org/web/20061104062044/http://www-03.ibm.com/press/us/en/pressrelease/20389.wss | url-status =dead | archive-date =November 4, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Oct|5}}
| MRO Software
| [[Asset Management]]
| {{flag|USA}}
| style="text-align:right;"| ${{nts|740000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of MRO Software, Inc. | publisher = [[IBM]] | date =2006-10-05 | url =http://www-03.ibm.com/press/us/en/pressrelease/20397.wss | archive-url =https://archive.today/20120715224246/http://www-03.ibm.com/press/us/en/pressrelease/20397.wss | url-status =dead | archive-date =July 15, 2012 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Oct|12}}
| [[FileNet|FileNet Corporation]]
| [[Content management software]]
| {{flag|USA}}
| style="text-align:right;"| $1,600,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of FileNet Corporation | publisher = [[IBM]] | date =2006-10-12 | url =http://www-03.ibm.com/press/us/en/pressrelease/20429.wss | archive-url =https://web.archive.org/web/20061016015800/http://www-03.ibm.com/press/us/en/pressrelease/20429.wss | url-status =dead | archive-date =October 16, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Oct|20}}
| [[Internet Security Systems|Internet Security Systems (ISS)]]
| [[Information security]]
| {{flag|USA}}
| style="text-align:right;"| $1,300,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Internet Security Systems | publisher = [[IBM]] | date =2006-10-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/20468.wss | archive-url =https://web.archive.org/web/20061105182124/http://www-03.ibm.com/press/us/en/pressrelease/20468.wss | url-status =dead | archive-date =November 5, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2006|Oct|20}}
| Palisades Technology Partners
| [[Management consulting]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes the Acquisition of Palisades Technology Partners | publisher = [[IBM]] | date =2006-11-10 | url =http://www-03.ibm.com/press/us/en/pressrelease/20598.wss | archive-url =https://web.archive.org/web/20061118020158/http://www-03.ibm.com/press/us/en/pressrelease/20598.wss | url-status =dead | archive-date =November 18, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Jan|22}}
| Consul Risk Management, Inc.
| [[Information security]]
| {{flag|NED}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Consul | publisher = [[IBM]] | date =2007-01-24 | url =http://www-03.ibm.com/press/us/en/pressrelease/20964.wss | archive-url =https://web.archive.org/web/20071012134222/http://www-03.ibm.com/press/us/en/pressrelease/20964.wss | url-status =dead | archive-date =October 12, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Feb|13}}
| Vallent Corporation
| Telecommunications Management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Vallent | publisher = [[IBM]] | date =2007-02-14 | url =http://www-03.ibm.com/press/us/en/pressrelease/21076.wss | archive-url =https://web.archive.org/web/20070216051045/http://www-03.ibm.com/press/us/en/pressrelease/21076.wss | url-status =dead | archive-date =February 16, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|March|1}}
| Softek Storage Solutions Corporation
| Data Mobility
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Softek | publisher = [[IBM]] | date =2007-03-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/21164.wss | archive-url =https://web.archive.org/web/20070304100648/http://www-03.ibm.com/press/us/en/pressrelease/21164.wss | url-status =dead | archive-date =March 4, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|March|18}}
| BlackDot Networks, Inc.
| Enterprise Data Consulting
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| 
|-
| {{dts|2007|April|20}}
| Unicible
| IT Services
| {{flag|SWI}}
| style="text-align:right;"| ${{nts|460000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM and Switzerland's Banque Cantonale Vaudoise in $460 Million, 5-Year Services Agreement | publisher = [[IBM]] | date =2007-04-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/21397.wss | archive-url =https://web.archive.org/web/20111007172152/http://www-03.ibm.com/press/us/en/pressrelease/21397.wss | url-status =dead | archive-date =October 7, 2011 | access-date = 2010-09-27}}</ref>
|-
| {{dts|2007|July|20}}
| Watchfire Corporation
| Security [[software testing]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Watchfire | publisher = [[IBM]] | date =2007-07-23 | url =http://www-03.ibm.com/press/us/en/pressrelease/21921.wss | archive-url =https://web.archive.org/web/20080618222127/http://www-03.ibm.com/press/us/en/pressrelease/21921.wss | url-status =dead | archive-date =June 18, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Aug|21}}
| WebDialogs
| Web conferencing and communications
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires WebDialogs to Expand Web Conferencing Capabilities in Industry-Leading Lotus Sametime | publisher = [[IBM]] | date =2007-08-22 | url =http://www-03.ibm.com/press/us/en/pressrelease/22210.wss | archive-url =https://web.archive.org/web/20070902083527/http://www-03.ibm.com/press/us/en/pressrelease/22210.wss | url-status =dead | archive-date =September 2, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Aug|31}}
| [[DataMirror|DataMirror Corporation]]
| [[Change Data Capture]]
| {{flag|CAN}}
| style="text-align:right;"| ${{nts|161000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of DataMirror | publisher = [[IBM]] | date =2007-09-04 | url =http://www-03.ibm.com/press/us/en/pressrelease/22282.wss | archive-url =https://web.archive.org/web/20070910025026/http://www-03.ibm.com/press/us/en/pressrelease/22282.wss | url-status =dead | archive-date =September 10, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Sept|7}}
| Qinnova, Inc.
| Internet Protocol Television (IPTV)
| {{flag|CAN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Formally Acquires PureEdge Solutions Inc., Pledges Support for Emerging Electronic Forms Standard Called Xforms | publisher = [[IBM]] | date =2005-09-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/7820.wss | archive-url =https://web.archive.org/web/20060820034055/http://www-03.ibm.com/press/us/en/pressrelease/7820.wss | url-status =dead | archive-date =August 20, 2006 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Sep|10}}
| Princeton Softech, Inc.
| [[Business intelligence]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Princeton Softech | publisher = [[IBM]] | date =2007-09-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/22318.wss | archive-url =https://web.archive.org/web/20080618222132/http://www-03.ibm.com/press/us/en/pressrelease/22318.wss | url-status =dead | archive-date =June 18, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2007|Oct|24}}
| NovusCG
| Storage Consulting and Technology Services
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Storage Solutions Company NovusCG | publisher = [[IBM]] | date =2007-10-24 | url =http://www-03.ibm.com/press/us/en/pressrelease/22476.wss | archive-url =https://web.archive.org/web/20071026041956/http://www-03.ibm.com/press/us/en/pressrelease/22476.wss | url-status =dead | archive-date =October 26, 2007 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Jan|2}}
| [[IBM XIV Storage System|XIV]]
| [[Enterprise storage]]
| {{flag|ISR}}
| style="text-align:right;"|Over $300M
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires XIV | publisher = [[IBM]] | date =2008-01-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/23200.wss | archive-url =https://web.archive.org/web/20080116231642/http://www-03.ibm.com/press/us/en/pressrelease/23200.wss | url-status =dead | archive-date =January 16, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Jan|18}}
| AptSoft Corporation
| [[Business intelligence]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires AptSoft to Expand Portfolio in Burgeoning Business Events Software Market | publisher = [[IBM]] | date =2008-01-23 | url =http://www-03.ibm.com/press/us/en/pressrelease/23376.wss | archive-url =https://web.archive.org/web/20080131183554/http://www-03.ibm.com/press/us/en/pressrelease/23376.wss | url-status =dead | archive-date =January 31, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Jan|29}}
| [[SolidDB|Solid Information Technology]]
| [[Database software]]
| {{flag|USA}}, {{flag|FIN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Solid Information Technology to Broaden Information on Demand Portfolio | publisher = [[IBM]] | date =2007-12-21 | url =http://www-03.ibm.com/press/us/en/pressrelease/22921.wss | archive-url =https://web.archive.org/web/20080117030129/http://www-03.ibm.com/press/us/en/pressrelease/22921.wss | url-status =dead | archive-date =January 17, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Jan|31}}
| [[Cognos]]
| [[Business intelligence]]
| {{flag|CAN}}
| style="text-align:right;"| $5,000,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Cognos | publisher = [[IBM]] | date =2008-01-31 | url =http://www-03.ibm.com/press/us/en/pressrelease/23423.wss | archive-url =https://web.archive.org/web/20080209125647/http://www-03.ibm.com/press/us/en/pressrelease/23423.wss | url-status =dead | archive-date =February 9, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Jan|31}}
| Arsenal Digital Solutions 
| Data backup services
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Arsenal Digital Solutions | publisher = [[IBM]] | date =2008-02-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/23404.wss | archive-url =https://web.archive.org/web/20080511170405/http://www-03.ibm.com/press/us/en/pressrelease/23404.wss | url-status =dead | archive-date =May 11, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|Feb|15}}
| Net Integration Technologies Inc.
| Business Server Software
| {{flag|CAN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Reaches Agreement to Acquire Net Integration Technologies Inc. | publisher = [[IBM]] | date =2008-01-18 | url =http://www-03.ibm.com/press/us/en/pressrelease/23325.wss | archive-url =https://web.archive.org/web/20080203044529/http://www-03.ibm.com/press/us/en/pressrelease/23325.wss | url-status =dead | archive-date =February 3, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|March|11}}
| [[Encentuate]], Inc.
| Enterprise Single Sign-On
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Encentuate | publisher = [[IBM]] | date =2008-03-12 | url =http://www-03.ibm.com/press/us/en/pressrelease/23653.wss | archive-url =https://web.archive.org/web/20080314163453/http://www-03.ibm.com/press/us/en/pressrelease/23653.wss | url-status =dead | archive-date =March 14, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|April|3}}
| [[Telelogic|Telelogic AB]]
| Enterprise software development
| {{flag|SWE}}
| style="text-align:right;"| ${{nts|845000000}}
| style="text-align:center;"| <ref>{{cite press release | title =IBM Completes Acquisition of Telelogic AB | publisher = [[IBM]] | date =2008-04-03 | url =http://www-03.ibm.com/press/us/en/pressrelease/23792.wss | archive-url =https://web.archive.org/web/20080618222207/http://www-03.ibm.com/press/us/en/pressrelease/23792.wss | url-status =dead | archive-date =June 18, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|April|18}}
| Diligent Technologies
| Data De-duplication
| {{flag|USA}}
| style="text-align:right;"| $200,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Storage Company Diligent Technologies | publisher = [[IBM]] | date =2008-04-18 | url =http://www-03.ibm.com/press/us/en/pressrelease/23929.wss | archive-url =https://web.archive.org/web/20080428082002/http://www-03.ibm.com/press/us/en/pressrelease/23929.wss | url-status =dead | archive-date =April 28, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|April|21}}
| FilesX
| [[Backup|Application Recovery Software]]
| {{flag|USA}}, {{flag|ISR}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{Cite web |title=IBM Acquires FilesX {{!}} Network Computing |url=https://www.networkcomputing.com/careers-and-certifications/ibm-acquires-filesx |access-date=2022-04-16 |website=www.networkcomputing.com |language=en}}</ref>
|-
| {{dts|2008|April|29}}
| InfoDyne Corporation
| Data Feed Connectors
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires InfoDyne to Create World-Class Platform for Market Data Delivery | publisher = [[IBM]] | date =2008-04-29 | url =http://www-03.ibm.com/press/us/en/pressrelease/23996.wss | archive-url =https://web.archive.org/web/20080513102058/http://www-03.ibm.com/press/us/en/pressrelease/23996.wss | url-status =dead | archive-date =May 13, 2008 | access-date = 2008-06-02}}</ref>
|-
| {{dts|2008|July|02}}
| Platform Solutions
| Mainframe, System Z technologies
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Platform Solutions | publisher = [[IBM]] | date =2008-07-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/24560.wss | archive-url =https://web.archive.org/web/20080803022955/http://www-03.ibm.com/press/us/en/pressrelease/24560.wss | url-status =dead | archive-date =August 3, 2008 | access-date = 2009-03-23}}</ref>
|-
| {{dts|2008|July|28}}
| [[ILOG]]
| Business Rules Management Systems  
| {{flag|FRA}}
| style="text-align:right;"| $340,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Announces Plans to Acquire ILOG | publisher = [[IBM]] | date =2008-07-28 | url =http://www-03.ibm.com/press/us/en/pressrelease/24740.wss | archive-url =https://web.archive.org/web/20080805114703/http://www-03.ibm.com/press/us/en/pressrelease/24740.wss | url-status =dead | archive-date =August 5, 2008 | access-date = 2008-07-29}}</ref>
|-
| {{dts|2008|Nov|18}}
| [[Transitive Corporation]]
| Virtualization Software
| {{flag|USA}}, {{flag|UK}}
| style="text-align:right;"|
| style="text-align:center;"|<ref>{{cite press release | title =IBM Announces Plans to Acquire Transitive | publisher = [[IBM]] | date =2008-11-18 | url =http://www-03.ibm.com/press/us/en/pressrelease/26106.wss | archive-url =https://archive.today/20120716115211/http://www-03.ibm.com/press/us/en/pressrelease/26106.wss | url-status =dead | archive-date =July 16, 2012 | access-date = 2009-03-23}}</ref>
|-
| {{dts|2009|Jan|15}}
| [[Outblaze]]'s E-Mail Service Assets
| Online messaging and collaboration
| {{flag|HKG}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Announces Intent to Acquire Outblaze's E-Mail Service Assets | publisher = [[IBM]] | date =2009-01-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/26486.wss | archive-url =https://web.archive.org/web/20090121180854/http://www-03.ibm.com/press/us/en/pressrelease/26486.wss | url-status =dead | archive-date =January 21, 2009 | access-date = 2009-03-23}}</ref>
|-
| {{dts|2009|May|05}}
| Exeros Assets
| Data Discovery Software 
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Exeros Assets | publisher = [[IBM]] | date =2009-05-05 | url =http://www-03.ibm.com/press/us/en/pressrelease/27215.wss | archive-url =https://web.archive.org/web/20090509151223/http://www-03.ibm.com/press/us/en/pressrelease/27215.wss | url-status =dead | archive-date =May 9, 2009 | access-date = 2009-05-05}}</ref>
|-
| {{dts|2009|July|28}}
| [[SPSS Inc.]]
| Statistical analysis software
| {{flag|USA}}
| style="text-align:right;"| $1,200,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire SPSS Inc. to Provide Clients Predictive Analytics Capabilities | publisher = [[IBM]] | date =2009-07-28 | url =http://www-03.ibm.com/press/us/en/pressrelease/27936.wss | archive-url =https://web.archive.org/web/20090731112503/http://www-03.ibm.com/press/us/en/pressrelease/27936.wss | url-status =dead | archive-date =July 31, 2009 | access-date = 2009-07-28}}</ref>
|-
| {{dts|2009|July|28}}
| [[Ounce Labs]]
| Source code analysis
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Ounce Labs, Inc. | publisher = [[IBM]] | date =2009-07-28 | url =http://www-03.ibm.com/press/us/en/pressrelease/27971.wss | archive-url =https://web.archive.org/web/20090731153953/http://www-03.ibm.com/press/us/en/pressrelease/27971.wss | url-status =dead | archive-date =July 31, 2009 | access-date = 2009-07-28}}</ref>
|-
| {{dts|2009|September|22}}
| RedPill Solutions
| Analytics and Optimisation
| {{flag|SGP}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires RedPill Solutions | publisher =[[IBM]] | date =2009-09-22 | url =http://www.redpillsolutions.com | archive-url =https://web.archive.org/web/20021001091706/http://www.redpillsolutions.com/ | url-status =dead | archive-date =2002-10-01 | access-date =2009-09-22 }}</ref>
|-
| {{dts|2009|November|30}}
| Guardium
| Database monitoring and protection
| {{flag|USA}}, {{flag|ISR}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite news | url=http://news.taume.com/World-Business/Business-Finance/ibm-acquires-guardium-13777 | title=IBM Acquires Guardium | publisher=Taume News | date=2009-11-30 | access-date=2009-12-01 | url-status=dead | archive-url=https://web.archive.org/web/20091202093051/http://news.taume.com/World-Business/Business-Finance/ibm-acquires-guardium-13777 | archive-date=2009-12-02 }}</ref>
|-
| {{dts|2009|December|16}}
| Lombardi
| [[Business Process Management]]
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Lombardi | publisher = [[IBM]] | date =2009-12-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/28890.wss | archive-url =https://web.archive.org/web/20110605162320/http://www-03.ibm.com/press/us/en/pressrelease/28890.wss | url-status =dead | archive-date =June 5, 2011 | access-date = 2009-12-16}}</ref>
|-
| {{dts|2010|January|20}}
| National Interest Security Company, LLC
| [[Public sector consulting]]
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to National Interest Security Company | publisher = [[IBM]] | date =2010-01-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/29225.wss | archive-url =https://web.archive.org/web/20110605131242/http://www-03.ibm.com/press/us/en/pressrelease/29225.wss | url-status =dead | archive-date =June 5, 2011 | access-date = 2010-01-20}}</ref>
|-
| {{dts|2010|February|03}}
| Initiate Systems
| Data integrity software
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Initiate Systems | publisher = [[IBM]] | date =2010-02-03 | url =http://www-03.ibm.com/press/us/en/pressrelease/29305.wss | archive-url =https://web.archive.org/web/20110605085438/http://www-03.ibm.com/press/us/en/pressrelease/29305.wss | url-status =dead | archive-date =June 5, 2011 | access-date = 2010-02-04}}</ref>
|-
| {{dts|2010|February|16}}
| Intelliden Inc.
| Network Automation software
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Intelliden Inc. | publisher = [[IBM]] | date =2010-02-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/29323.wss | archive-url =https://web.archive.org/web/20100914205339/http://www-03.ibm.com/press/us/en/pressrelease/29323.wss | url-status =dead | archive-date =September 14, 2010 | access-date = 2010-02-16}}</ref>
|-
| {{dts|2010|March|1}}
| Wilshire Credit Corporation Assets
| Mortgage Business Processing Services
|{{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Closes Acquisition of Wilshire Credit Corporation Assets | publisher = [[IBM]] | date =2010-03-01 | url =https://newsroom.ibm.com/2010-03-01-IBM-Closes-Acquisition-of-Wilshire-Credit-Corporation-Assets | access-date = 2010-02-16}}</ref>
|-
| {{dts|2010|May|3}}
| Cast Iron Systems
| Cloud Integration
| {{flag|USA}}
| style="text-align:right;"| $190,000,000 <ref>{{cite news | title = The Huge Value Sequoia Capital And Other Venture Capitalists Help Create | publisher = [[TechCrunch]] | date=2010-09-27 | url = https://techcrunch.com/2010/09/27/sequoia-capital-12-billion-exits/ | access-date = 2012-01-21}}</ref>
| style="text-align:center;"| <ref>{{cite press release | title =IBM Advances Cloud Initiatives with Acquisition of Cast Iron Systems| publisher = [[IBM]] | date =2010-02-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/30580.wss | archive-url =https://web.archive.org/web/20101212203500/http://www-03.ibm.com/press/us/en/pressrelease/30580.wss | url-status =dead | archive-date =December 12, 2010 | access-date = 2010-05-03}}</ref>
|-
| {{dts|2010|May|24}}
| [[Sterling Commerce]]
| Business software integration
| {{flag|USA}}
| style="text-align:right;"| $1,400,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Agrees to Acquire Sterling Commerce from AT&T for $1.4 Billion | publisher = [[IBM]] | date =2010-05-24 | url =http://www-03.ibm.com/press/us/en/pressrelease/31742.wss | archive-url =https://archive.today/20120717073827/http://www-03.ibm.com/press/us/en/pressrelease/31742.wss | url-status =dead | archive-date =July 17, 2012 | access-date = 2010-05-24}}</ref>
|-
| {{dts|2010|June|15}}
| Coremetrics
| [[Web analytics|Web Analytics]]
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Advances Analytics With Acquisition of Coremetrics | publisher =[[IBM]] | date =2010-06-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/31885.wss | access-date =2010-06-15 | url-status =dead | archive-url =https://web.archive.org/web/20121009143710/http://www-03.ibm.com/press/us/en/pressrelease/31885.wss | archive-date =2012-10-09 }}</ref>
|-
| {{dts|2010|July|01}}
| [[BigFix|BigFix, Inc.]]
| Security and IT automation software
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire BigFix to Advance Smarter Data Centers| publisher = [[IBM]] | date =2010-07-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/32026.wss | archive-url =https://web.archive.org/web/20111030032012/http://www-03.ibm.com/press/us/en/pressrelease/32026.wss | url-status =dead | archive-date =October 30, 2011 | access-date = 2010-07-01}}</ref>
|-
| {{dts|2010|July|29}}
| [[IBM Storwize family|Storwize]]
| Data Compression
| {{flag|USA}}
| style="text-align:right;"|$140,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Storwize for Data Compression Capabilities| publisher = [[IBM]] | date =2010-07-29 | url =http://www-03.ibm.com/press/us/en/pressrelease/32219.wss | archive-url =https://web.archive.org/web/20100804043617/http://www-03.ibm.com/press/us/en/pressrelease/32219.wss | url-status =dead | archive-date =August 4, 2010 | access-date = 2010-07-29}}</ref>
|-
| {{dts|2010|August|10}}
| [[Datacap]]
| Data capture and Content Management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Datacap| publisher = [[IBM]] | date =2010-08-10 | url =http://www-03.ibm.com/press/us/en/pressrelease/32253.wss | archive-url =https://web.archive.org/web/20100815045507/http://www-03.ibm.com/press/us/en/pressrelease/32253.wss | url-status =dead | archive-date =August 15, 2010 | access-date = 2010-08-10}}</ref>
|-
| {{dts|2010|August|13}}
| [[Unica Corporation]]
| Marketing planning software
| {{flag|USA}}
| style="text-align:right;"| $480,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Unica Corporation| publisher = [[IBM]] | date =2010-08-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/32309.wss | archive-url =https://web.archive.org/web/20100817012035/http://www-03.ibm.com/press/us/en/pressrelease/32309.wss | url-status =dead | archive-date =August 17, 2010 | access-date = 2010-08-13}}</ref>
|-
| {{dts|2010|September|15}}
| [[OpenPages]]
| Integrated risk management solutions
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire OpenPages| publisher = [[IBM]] | date =2010-09-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/32474.wss | archive-url =https://web.archive.org/web/20100919142247/http://www-03.ibm.com/press/us/en/pressrelease/32474.wss | url-status =dead | archive-date =September 19, 2010 | access-date = 2010-09-15}}</ref>
|-
| {{dts|2010|September|20}}
| [[Netezza]]
| [[Data warehousing]] and [[analytics]]
| {{flag|USA}}
| style="text-align:right;"| $1,700,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Netezza| publisher = [[IBM]] | date =2010-09-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/32514.wss | archive-url =https://web.archive.org/web/20100923232722/http://www-03.ibm.com/press/us/en/pressrelease/32514.wss | url-status =dead | archive-date =September 23, 2010 | access-date = 2010-09-20}}</ref>
|-
| {{dts|2010|September|27}}
| [[BLADE Network Technologies]]
| [[Computer network|Networking]]
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire BLADE Network Technologies| publisher = [[IBM]] | date =2010-09-27 | url =http://www-03.ibm.com/press/us/en/pressrelease/32525.wss | archive-url =https://web.archive.org/web/20100930144047/http://www-03.ibm.com/press/us/en/pressrelease/32525.wss | url-status =dead | archive-date =September 30, 2010 | access-date = 2010-12-09}}</ref>
|-
| {{dts|2010|October|13}}
| PSS Systems
| Legal risk management
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires PSS Systems| publisher = [[IBM]] | date =2010-10-13 | url =http://www.prnewswire.com/news-releases/ibm-acquires-pss-systems-104855574.html | access-date = 2010-10-13}}</ref>
|-
| {{dts|2010|October|21}}
| Clarity Systems
| Financial governance
| {{flag|CAN}}
| style="text-align:right;"| $350,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Clarity Systems| publisher = [[IBM]] | date =2010-10-21 | url =http://www-03.ibm.com/press/us/en/pressrelease/32795.wss | archive-url =https://web.archive.org/web/20101022130531/http://www-03.ibm.com/press/us/en/pressrelease/32795.wss | url-status =dead | archive-date =October 22, 2010 | access-date = 2010-10-21}}</ref>
|-
| {{dts|2011|March|22}}
| Tririga Inc.
| Facility and Real Estate Management
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire TRIRIGA, Inc. to Accelerate Smarter Buildings Transformation| publisher = [[IBM]] | date =2011-03-22 | url =http://www-03.ibm.com/press/us/en/pressrelease/34060.wss | archive-url =https://web.archive.org/web/20110325104016/http://www-03.ibm.com/press/us/en/pressrelease/34060.wss | url-status =dead | archive-date =March 25, 2011 | access-date = 2011-03-22}}</ref>
|-
| {{dts|2011|August|31}}
| [[i2 Limited]]
| Intelligence Analytics
| {{flag|UK}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire i2 to Accelerate Big Data Analytics to Transform Global Cities| publisher = [[IBM]] | date =2011-08-31 | url =http://www-03.ibm.com/press/us/en/pressrelease/35255.wss | archive-url =https://web.archive.org/web/20111010030326/http://www-03.ibm.com/press/us/en/pressrelease/35255.wss | url-status =dead | archive-date =October 10, 2011 | access-date = 2011-08-31}}</ref>
|-
| {{dts|2011|September|1}}
| [[Algorithmics Inc.]]<ref>[http://www.algorithmics.com Algorithmics Inc. official website]</ref>
| Risk Management
| {{flag|CAN}}
| style="text-align:right;"| $387,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Algorithmics| publisher = [[IBM]] | date =2011-08-31 | url =http://www-03.ibm.com/press/us/en/pressrelease/35176.wss | archive-url =https://web.archive.org/web/20111028211155/http://www-03.ibm.com/press/us/en/pressrelease/35176.wss | url-status =dead | archive-date =October 28, 2011 | access-date = 2011-09-01}}</ref>
|-
| {{dts|2011|October|4}}
| Q1 Labs<ref>[http://q1labs.com Q1 Labs official website]</ref>
| Security Intelligence
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title = IBM to Acquire Q1 Labs to Drive Greater Security Intelligence| publisher = [[IBM]] | date =2011-10-04 | url = http://www-03.ibm.com/press/us/en/pressrelease/35544.wss | archive-url = https://web.archive.org/web/20111006151620/http://www-03.ibm.com/press/us/en/pressrelease/35544.wss | url-status = dead | archive-date = October 6, 2011 | access-date = 2011-10-31}}</ref>
|-
| {{dts|2011|October|12}}
| [[Platform Computing]]
| Cluster and Grid Management Software
| {{flag|CAN}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire System Software Company Platform Computing to Extend Reach of Technical Computing| publisher = [[IBM]] | date =2011-10-12 | url =http://www-03.ibm.com/press/us/en/pressrelease/35630.wss | archive-url =https://web.archive.org/web/20111013001553/http://www-03.ibm.com/press/us/en/pressrelease/35630.wss | url-status =dead | archive-date =October 13, 2011 | access-date = 2011-10-12}}</ref>
|-
| {{dts|2011|December|05}}
| [[Cúram Software]]
| Smarter Cities 
| {{flag|IRL}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM extends Smarter Cities initiative through acquisition of Cúram Software| publisher = [[IBM]] | date =2011-12-05 | url =http://www-03.ibm.com/press/us/en/pressrelease/36134.wss | archive-url =https://web.archive.org/web/20120107155716/http://www-03.ibm.com/press/us/en/pressrelease/36134.wss | url-status =dead | archive-date =January 7, 2012 | access-date = 2012-02-23}}</ref>
|-
| {{dts|2011|December|08}}
| DemandTec
| Cloud-based Retail Analytics
| {{flag|USA}}
| style="text-align:right;"| $440,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire DemandTec to Expand Cloud-Based Analytics for Smarter Commerce| publisher = [[IBM]] | date =2011-12-08 | url =http://www-03.ibm.com/press/us/en/pressrelease/36165.wss | archive-url =https://web.archive.org/web/20120107125639/http://www-03.ibm.com/press/us/en/pressrelease/36165.wss | url-status =dead | archive-date =January 7, 2012 | access-date = 2011-12-13}}</ref>
|-
| {{dts|2011|December|15}}
| [[Emptoris]]
| Supply Chain Analytics
| {{flag|USA}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquisition of Emptoris Bolsters Smarter Commerce Initiative, Helps Reduce Procurement Costs and Risks| publisher = [[IBM]] | date =2011-12-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/36225.wss | archive-url =https://web.archive.org/web/20120107155721/http://www-03.ibm.com/press/us/en/pressrelease/36225.wss | url-status =dead | archive-date =January 7, 2012 | access-date = 2011-12-15}}</ref>
|-
| {{dts|2012|January|04}}
| Green Hat (software company)<ref>[http://www.greenhat.com/ Green Hat official website]</ref>
| Cloud based software testing
| {{flag|USA}}, {{flag|UK}}
| style="text-align:right;"| 
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Green Hat| publisher = [[IBM]] | date =2011-01-04 | url =http://www-03.ibm.com/press/us/en/pressrelease/36431.wss | archive-url =https://web.archive.org/web/20120108185828/http://www-03.ibm.com/press/us/en/pressrelease/36431.wss | url-status =dead | archive-date =January 8, 2012 | access-date = 2012-01-04}}</ref>
|-
| {{dts|2012|January|31}}
| Worklight
| Software Development Firm
| {{flag|ISR}}
| style="text-align:right;"| $70,000,000
| style="text-align:center;"| <ref>{{cite press release | title=IBM Advances Mobile Capabilities with Acquisition of Worklight|url=http://www-03.ibm.com/press/us/en/pressrelease/36660.wss|archive-url=https://web.archive.org/web/20120202200843/http://www-03.ibm.com/press/us/en/pressrelease/36660.wss|url-status=dead|archive-date=February 2, 2012| publisher = [[IBM]] | date =2012-01-31|access-date=2012-01-31}}</ref><ref>{{cite web|last=Rao|first=Leena|title=IBM's Mixed Q1 2012: Revenue Flat At $24.7B; Net Income Up 7 Percent To $3.1B|url=https://techcrunch.com/2012/04/17/ibms-q1-2012-revenue-flat-at-24-7b-net-income-up-7-percent-to-3-1b/|publisher=[[TechCrunch]]|access-date=10 May 2012|date=17 April 2012|quote=While the company revealed layoffs in February, IBM has spent some cash in the first quarter on acquisitions, buying Worklight for $70 million and Green Hat.}}</ref>
|-
| {{dts|2012|April|13}}
| Varicent
| Compensation and Sales Performance Management Software Solutions
| {{flag|CAN}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release |title=IBM Broadens Analytics Portfolio with Acquisition of Varicent Software | publisher = [[IBM]] | date =2012-04-13 | url=http://www-03.ibm.com/press/us/en/pressrelease/37434.wss| archive-url=https://web.archive.org/web/20120416030006/http://www-03.ibm.com/press/us/en/pressrelease/37434.wss| url-status=dead| archive-date=April 16, 2012|access-date=2012-04-13}}</ref>
|-
| {{dts|2012|April|25}}
| [[Vivisimo]]
| Enterprise Search Software
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Advances Big Data Analytics with Acquisition of Vivisimo| publisher = [[IBM]] | date =2012-04-25 | url =http://www-03.ibm.com/press/us/en/pressrelease/37491.wss | archive-url =https://web.archive.org/web/20120428023655/http://www-03.ibm.com/press/us/en/pressrelease/37491.wss | url-status =dead | archive-date =April 28, 2012 | access-date = 2012-04-25}}</ref>
|-
| {{dts|2012|May|2}}
| [[Tealeaf|Tealeaf Technology]]
| Customer Experience Analytics Software
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Tealeaf Technology, Inc. to Help Marketers Deliver Exceptional Digital Experience for Smarter Commerce| publisher = [[IBM]] | date =2012-05-02 | url =http://www-03.ibm.com/press/us/en/pressrelease/37593.wss | archive-url =https://web.archive.org/web/20120504200342/http://www-03.ibm.com/press/us/en/pressrelease/37593.wss | url-status =dead | archive-date =May 4, 2012 | access-date = 2012-05-25}}</ref>
|-
| {{dts|2012|August|16}}
| [[Texas Memory Systems]]
| Solid State Storage
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Plans to Acquire Texas Memory Systems | publisher = [[IBM]] | date =2012-08-16 | url =http://www-03.ibm.com/press/us/en/pressrelease/38594.wss | archive-url =https://web.archive.org/web/20120819034450/http://www-03.ibm.com/press/us/en/pressrelease/38594.wss | url-status =dead | archive-date =August 19, 2012 | access-date = 2012-08-16}}</ref>
|-
| {{dts|2012|August|27}}
| [[Kenexa|Kenexa Corporation]]
| Human Capital Solutions
| {{flag|USA}}
| style="text-align:right;"| ${{formatnum:1400000000}}<ref>[http://softwareequitygroup.wordpress.com/category/saas/ IBM's acquisition of Kenexa ($1.4 billion, 4.1x)]</ref>
| style="text-align:center;"| <ref name=GT-DEX-2012-33-33-06>{{cite news | title =IBM To Buy Social-Business Company Kenexa For $1.3 Billion | publisher = [[Bloomberg L.P.|Bloomberg]] | date =2012-08-28 | url =https://www.bloomberg.com/news/2012-08-27/ibm-to-buy-social-business-company-kenexa-for-about-1-3-billion.html | access-date = 2012-08-28}}</ref>
|-
| {{dts|2012|September|24}}
| Butterfly Software Ltd.
| Data Analysis and Migration Software
| {{flag|UK}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Advances Storage Capabilities with Acquisition of Butterfly Software | publisher = [[IBM]] | date =2012-09-24 | url =http://www-03.ibm.com/press/us/en/pressrelease/38940.wss | archive-url =https://web.archive.org/web/20120926140051/http://www-03.ibm.com/press/us/en/pressrelease/38940.wss | url-status =dead | archive-date =September 26, 2012 | access-date = 2012-09-24}}</ref>
|-
| {{dts|2012|December|19}}
| [[StoredIQ]]
| Big Data Analysis
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire StoredIQ | publisher = [[IBM]] | date =2012-12-19 | url =http://www-03.ibm.com/press/us/en/pressrelease/39692.wss | archive-url =https://web.archive.org/web/20121230193514/http://www-03.ibm.com/press/us/en/pressrelease/39692.wss | url-status =dead | archive-date =December 30, 2012 | access-date = 2012-12-19}}</ref>
|-
| {{dts|2013|February |1}}
| Star Analytics
| Business Analytics
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire Star Analytics, Inc| publisher = [[IBM]] | date =2013-02-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/40153.wss | archive-url =https://web.archive.org/web/20130205025729/http://www-03.ibm.com/press/us/en/pressrelease/40153.wss | url-status =dead | archive-date =February 5, 2013 | access-date = 2013-02-01}}</ref><ref>{{cite press release | title =IBM Completes Acquisition of Star Analytics, Inc.| publisher = [[IBM]] | date =2013-03-19 | url =http://www-03.ibm.com/press/us/en/pressrelease/40574.wss | archive-url =https://web.archive.org/web/20130322035625/http://www-03.ibm.com/press/us/en/pressrelease/40574.wss | url-status =dead | archive-date =March 22, 2013 | access-date = 2013-03-19}}</ref>
|-
| {{dts|2013|April |22}}
| UrbanCode
| Software delivery automation
| {{flag|USA}}
| style="text-align:right;"|
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires UrbanCode to Help Businesses Rapidly Deliver Mobile, Cloud, Big Data and Social Software| publisher = [[IBM]] | date =2013-04-22 | url =http://www-03.ibm.com/press/us/en/pressrelease/40820.wss | archive-url =https://web.archive.org/web/20130423050122/http://www-03.ibm.com/press/us/en/pressrelease/40820.wss | url-status =dead | archive-date =April 23, 2013 | access-date = 2013-02-01}}</ref>
|-
| {{dts|2013|June |04}}
| [[SoftLayer|SoftLayer Technologies]]
| Cloud Computing Infrastructure
| {{flag|USA}}
| style="text-align:right;"| $2,000,000,000<ref>[https://dealbook.nytimes.com/2013/06/04/i-b-m-buys-cloud-computing-firm-in-deal-said-to-be-worth-2-billion/ I.B.M. Buys Cloud Computing Firm in Deal Said to Be Worth $2 Billion]</ref>
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire SoftLayer to Accelerate Adoption of Cloud Computing in the Enterprise| publisher = [[IBM]] | date =2013-06-04 | url =http://www-03.ibm.com/press/us/en/pressrelease/41191.wss | archive-url =https://web.archive.org/web/20130608133704/http://www-03.ibm.com/press/us/en/pressrelease/41191.wss | url-status =dead | archive-date =June 8, 2013 | access-date = 2013-06-04}}</ref>
|-
| {{dts|2013|July |09}}
| CSL International
| Cloud Computing
| {{flag|ISR}}
| style="text-align:right;"| Not Disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Accelerates Cloud Computing on System z with Acquisition of CSL International| publisher = [[IBM]] | date =2013-07-09 | url =http://www-03.ibm.com/press/us/en/pressrelease/41442.wss | archive-url =https://web.archive.org/web/20130713105203/http://www-03.ibm.com/press/us/en/pressrelease/41442.wss | url-status =dead | archive-date =July 13, 2013 | access-date = 2013-07-09}}</ref>
|-
| {{dts|2013|August |15}}
| [[Trusteer]]
| Cyber Security
| {{flag|ISR}}
| style="text-align:right;"| $1,000,000,000<ref>[https://www.reuters.com/article/us-trusteer-ibm-idUSBRE97E13I20130815/ IBM says it will buy Trusteer, source says paying close to $1 billion]</ref>
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Trusteer to Help Companies Combat Financial Fraud and Advanced Security Threats| publisher = [[IBM]] | date =2013-08-15 | url =http://www-03.ibm.com/press/us/en/pressrelease/41487.wss | archive-url =https://web.archive.org/web/20130818082249/http://www-03.ibm.com/press/us/en/pressrelease/41487.wss | url-status =dead | archive-date =August 18, 2013 | access-date = 2013-08-15}}</ref>
|-
| {{dts|2013|September |19}}
| Daeja Image Systems
| Viewer for document management systems
| {{flag|UK}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Daeja Image Systems Ltd.| publisher = [[IBM]] | date =2013-09-19 | url =http://www-03.ibm.com/press/us/en/pressrelease/41567.wss | archive-url =https://web.archive.org/web/20130922005335/http://www-03.ibm.com/press/us/en/pressrelease/41567.wss | url-status =dead | archive-date =September 22, 2013 | access-date = 2013-09-25}}</ref>
|-
| {{dts|2013|October |1}}
| The Now Factory
| Mobile Networks Big Data Analytics
| {{flag|IRL}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires The Now Factory| publisher = [[IBM]] | date =2013-10-01 | url =http://www-03.ibm.com/press/us/en/pressrelease/41927.wss| archive-url =https://web.archive.org/web/20131001161555/http://www-03.ibm.com/press/us/en/pressrelease/41927.wss| url-status =dead| archive-date =October 1, 2013| access-date = 2013-10-01}}</ref>
|-
| {{dts|2013|October |3}}
| Xtify
|  In-app mobile messaging and push notification tools
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Xtify to Help Digital Marketers Reach Mobile Customers| publisher = [[IBM]] | date =2013-10-03 | url =http://www-03.ibm.com/press/us/en/pressrelease/42064.wss| archive-url =https://web.archive.org/web/20131005023311/http://www-03.ibm.com/press/us/en/pressrelease/42064.wss| url-status =dead| archive-date =October 5, 2013| access-date = 2013-10-03}}</ref>
|-
| {{dts|2013|November  |13}}
| Fiberlink Communications
|  Mobile Device Management
| {{flag|USA}}
| style="text-align:right;"| $330,000,000
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Fiberlink Communications, Transforming the Mobile Management and Security Market
| publisher = [[IBM]] | date =2013-11-13 | url =http://www-03.ibm.com/press/us/en/pressrelease/42396.wss| archive-url =https://web.archive.org/web/20131114022258/http://www-03.ibm.com/press/us/en/pressrelease/42396.wss| url-status =dead| archive-date =November 14, 2013| access-date = 2013-11-13}}</ref>
|-
| {{dts|2013|December  |19}}
|[[Aspera (company)|Aspera, Inc.]]
|  Data Transfer Technology
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM to acquire Aspera, Inc. |publisher= [[IBM]] | date =2013-12-19 | url =http://www-03.ibm.com/press/us/en/pressrelease/42782.wss| archive-url =https://web.archive.org/web/20131220054835/http://www-03.ibm.com/press/us/en/pressrelease/42782.wss| url-status =dead| archive-date =December 20, 2013| access-date = 2013-12-19}}</ref>
|-
| {{dts|2014|February  |24}}
| [[Cloudant|Cloudant, Inc.]] 
|  Database-as-a-Service
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM to Acquire Cloudant: Open, Cloud Database Service Helps Organizations Simplify Mobile, Web App and Big Data Development |publisher= [[IBM]] | date =2014-02-24 | url =http://www-03.ibm.com/press/us/en/pressrelease/43238.wss| archive-url =https://web.archive.org/web/20140225041229/http://www-03.ibm.com/press/us/en/pressrelease/43238.wss| url-status =dead| archive-date =February 25, 2014| access-date = 2014-02-24}}</ref>
|-
| {{dts|2014|April|10}}
| Silverpop Systems, Inc. 
|  Behavioral Marketing Automation
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM To Acquire Silverpop To Help Marketers Deliver Personalized Customer Engagements|publisher= [[IBM]] | date =2014-04-10 | url =http://www-03.ibm.com/press/us/en/pressrelease/43513.wss| archive-url =https://web.archive.org/web/20140413050015/http://www-03.ibm.com/press/us/en/pressrelease/43513.wss| url-status =dead| archive-date =April 13, 2014| access-date = 2014-04-10}}</ref>
|-
| {{dts|2014|May|19}}
| Cognea
|  Cognitive computing (conversational artificial intelligence platform)
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Watson Acquires Artificial Intelligence Startup Cognea|publisher= [[Techcrunch]] | date =2014-05-19 | url =https://techcrunch.com/2014/05/19/ibm-watson-acquires-artificial-intelligence-startup-cognea/| access-date = 2014-05-19}}</ref>
|-
| {{dts|2014|July|31}}
| CrossIdeas
| Cloud Security (Identity and Access Governance)
| {{flag|ITA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM acquires CrossIdeas to Expand Security Offerings with Identity Intelligence|publisher= [[IBM]] | date =2014-07-31 | url =http://www-03.ibm.com/press/us/en/pressrelease/44469.wss| archive-url =https://web.archive.org/web/20140803212058/http://www-03.ibm.com/press/us/en/pressrelease/44469.wss| url-status =dead| archive-date =August 3, 2014| access-date = 2014-07-31}}</ref>
|-
| {{dts|2014|August|11}}
| Lighthouse Security Group 
|  Cloud Security
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM Acquires Cloud Security Services Provider Lighthouse Security Group |publisher= [[IBM]] | date =2014-08-11 | url =http://www-03.ibm.com/press/us/en/pressrelease/44503.wss| archive-url =https://web.archive.org/web/20140812210331/http://www-03.ibm.com/press/us/en/pressrelease/44503.wss| url-status =dead| archive-date =August 12, 2014| access-date = 2014-08-11}}</ref>
|-
| {{dts|2015|March|04}}
| [[AlchemyAPI]]
|  [[Natural language processing]], [[big data]]
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =IBM buys AlchemyAPI to boost Watson computing unit |publisher= [[Reuters]] | date =2015-04-04 | url =https://www.reuters.com/article/ibm-alchemy-idUSL1N0W601420150304| access-date = 2015-03-05}}</ref>
|-
|Mar 25, 2015
|[[Lufthansa]]'s IT Infrastructure Unit (LHSystems)
|IT Infrastructure servicing Lufthansa and its subsidiaries ([[Lufthansa Technik|Technik]], [[Lufthansa Cargo|Cargo]], [[LSG Group|LSG Skychefs]], etc.)<br />Although purchase price is difficult to find, IBM positioned this acquisition as "winning 'an outsourcing contract' worth US$ 1.25B"<ref>{{Cite news |date=2014-11-18 |title=Lufthansa signs $1.25 billion outsourcing deal with IBM |language=en |work=Reuters |url=https://www.reuters.com/article/us-lufthansa-ibm-outsourcing-idUSKCN0J20PV20141118 |access-date=2022-07-22}}</ref>
|{{flag|USA}}{{flag|DE}}
| style="text-align:right;"| 
|style="text-align:center;"| <ref>{{cite press release | title =IBM buys AlchemyAPI to boost Watson computing unit |publisher= [[Reuters]] | date =2015-04-04 | url =https://www.reuters.com/article/us-lufthansa-m-a-it/lufthansa-close-to-deal-with-ibm-for-it-infrastructure-unit-idUKKCN0IB0JT20141022| access-date = 2022-07-22}}</ref>
|-
| {{dts|2015|March|27}}
| [[Blekko]]
|  Web Search Engine, Cognitive Computing
| {{flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{cite press release | title =Data, Data, Everywhere – Now a Better Way to Understand It |publisher= [[IBM]] | date =2015-03-27 | url =http://asmarterplanet.com/blog/2015/03/better-way-tap-big-data-gusher.html| access-date = 2016-01-09}}</ref>
|-
| {{dts|2015|April|13}}
|[https://case.edu/ech/articles/e/explorys Explorys]
|Healthcare analytics
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{Cite web|url = http://www-03.ibm.com/press/us/en/pressrelease/46585.wss|archive-url = https://web.archive.org/web/20150416061004/http://www-03.ibm.com/press/us/en/pressrelease/46585.wss|url-status = dead|archive-date = April 16, 2015|title = IBM Acquires Explorys to Accelerate Cognitive Insights for Health and Wellness|date = 2015-04-13|access-date = 2015-04-13}}</ref>
|-
| {{dts|2015|April|13}}
|Phytel
|Health management software
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"| <ref>{{Cite web|url = http://www-03.ibm.com/press/us/en/pressrelease/46584.wss|archive-url = https://web.archive.org/web/20150416060959/http://www-03.ibm.com/press/us/en/pressrelease/46584.wss|url-status = dead|archive-date = April 16, 2015|title = IBM to Acquire Phytel to Help Healthcare Providers Deliver Higher Value Care|date = 2015-04-13|access-date = 2015-04-13}}</ref>
|-
| {{dts|2015|June|3}}
|Bluebox
|Private Cloud as a Service
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"|<ref>{{Cite web|title = IBM Acquires Blue Box to Accelerate Open Hybrid Clouds|url = https://www-03.ibm.com/press/us/en/pressrelease/47030.wss|archive-url = https://web.archive.org/web/20150607035210/http://www-03.ibm.com/press/us/en/pressrelease/47030.wss|url-status = dead|archive-date = June 7, 2015|website = www-03.ibm.com|access-date = 2015-06-17}}</ref>
|-
| {{dts|2015|July|23}}
|Compose Inc.
|Database as a Service
|{{Flag|USA}}
|style="text-align:right;"| Not disclosed
| style="text-align:center;"|<ref name="IBM Acquires Compose Inc">{{Cite web|title = IBM Acquires Compose Inc. |url = https://www-03.ibm.com/press/us/en/pressrelease/47030.wss|archive-url = https://web.archive.org/web/20150607035210/http://www-03.ibm.com/press/us/en/pressrelease/47030.wss|url-status = dead|archive-date = June 7, 2015|website = www-03.ibm.com|access-date = 2015-06-17}}</ref>
|-
| {{dts|2015|August|6}}
|Merge Healthcare Inc.
|Healthcare imaging software
|{{Flag|USA}}
| style="text-align:right;"| $1,000,000,000
| style="text-align:center;"|<ref>{{Cite web|title = Watson to Gain Ability to "See" with Planned $1B Acquisition of Merge Healthcare|url = http://www-03.ibm.com/press/us/en/pressrelease/47435.wss|archive-url = https://web.archive.org/web/20150806221757/http://www-03.ibm.com/press/us/en/pressrelease/47435.wss|url-status = dead|archive-date = August 6, 2015|website = www-03.ibm.com|access-date = 2015-08-06}}</ref>
|-
| {{dts|2015|September|10}}
|[[StrongLoop|StrongLoop Inc.]]
|Mobile API capabilities
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"|<ref>{{Cite web|title = IBM Acquires StrongLoop to Extend Enterprise Reach using IBM Cloud|url = https://www-03.ibm.com/press/us/en/pressrelease/47577.wss|archive-url = https://web.archive.org/web/20150910165852/http://www-03.ibm.com/press/us/en/pressrelease/47577.wss|url-status = dead|archive-date = September 10, 2015|website = www-03.ibm.com|access-date = 2015-09-10}}</ref>
|-
| {{dts|2015|September|28}}
|Meteorix LLC
|Consulting services for [[Workday, Inc.|Workday]] applications
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"|<ref>{{Cite web|title = IBM Plans to Acquire Meteorix, a Leading Workday Services Partner|url = https://www-03.ibm.com/press/us/en/pressrelease/47741.wss|archive-url = https://web.archive.org/web/20150930220345/http://www-03.ibm.com/press/us/en/pressrelease/47741.wss|url-status = dead|archive-date = September 30, 2015|website = www-03.ibm.com|access-date = 2015-09-28}}</ref>
|-
| {{dts|2015|October|28}}
|[[The Weather Company]] digital assets
|Weather data sources and analytics, related online and mobile products
|{{Flag|USA}}
| style="text-align:right;"| Not disclosed
| style="text-align:center;"|<ref name=nyt-ibmtwc>{{cite news|title=IBM to Acquire the Weather Company|url=https://www.nytimes.com/2015/10/29/technology/ibm-to-acquire-the-weather-company.html?_r=0|access-date=28 October 2015|work=The New York Times| date=28 October 2015 | last1=Hardy | first1=Quentin }}</ref><ref name=bloomberg-twcibm>{{cite news|title=IBM Agrees to Acquire Weather Channel's Digital Assets|url=https://www.bloomberg.com/news/articles/2015-10-28/ibm-agrees-to-acquire-weather-channel-s-digital-assets|access-date=28 October 2015|work=Bloomberg}}</ref><ref name=variety-stormsinrealityout>{{cite news|title=Storms Are In, Reality Shows Out As Weather Channel Gets Back to Basics|url=https://variety.com/2015/tv/news/weather-channel-ibm-acquisition-reality-tv-1201629228/|access-date=29 October 2015|work=Variety}}</ref>
|-
| {{dts|2015|November|3}}
|Gravitant, Inc
|Cloud brokerage software and cloud management
|{{Flag|USA}}
|style="text-align:right;"| Not disclosed
|<ref>{{Cite web|title = IBM Plans to Acquire The Weather Company's Product and Technology Businesses; Extends Power of Watson to the Internet of Things|url = http://www-03.ibm.com/press/us/en/pressrelease/47952.wss|archive-url = https://web.archive.org/web/20151031000309/http://www-03.ibm.com/press/us/en/pressrelease/47952.wss|url-status = dead|archive-date = October 31, 2015|website = www-03.ibm.com|access-date = 2015-11-02}}</ref>
|-
| {{dts|2015|November|6}}
|[[Cleversafe Inc.|Cleversafe]]
|Object-based storage software
|{{Flag|USA}}
| style="text-align:right;"| $1,309,000,000<ref>{{cite web |url=https://www.sec.gov/Archives/edgar/data/51143/000104746916010329/a2226548zex-13.htm |title=Report of Financials: International Business Machines Corporation and Subsidiary Companies |website=[[U.S. Securities and Exchange Commission]]}}</ref>
|<ref>{{Cite web|title = IBM Completes Acquisition of Cleversafe|url = http://www-03.ibm.com/press/us/en/pressrelease/48027.wss|archive-url = https://web.archive.org/web/20151109211426/http://www-03.ibm.com/press/us/en/pressrelease/48027.wss|url-status = dead|archive-date = November 9, 2015|website = www-03.ibm.com|date = 2015-11-06|access-date = 2015-11-30|language = en-US}}</ref>
|-
| {{dts|2015|December|8}}
|Clearleap
|Cloud-based video management
|{{Flag|USA}}
|style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Snags Clearleap Video Service As It Continues To Pick Off Strategic Cloud Properties|url=https://techcrunch.com/2015/12/08/ibm-snags-clearleap-cloud-video-services-as-it-continues-to-pick-off-strategic-cloud-properties/|website=TechCrunch|date=8 December 2015 |access-date=21 January 2016}}</ref>
|-
| {{dts|2016|January|15}}
|Iris Analytics
|Real time transaction [[fraud detection]]
|{{Flag|GER}}
|style="text-align:right;"| Not disclosed
|<ref>{{Cite web|title = IBM Acquires IRIS Analytics, Strengthening Fraud Detection Analytics|url = http://www-03.ibm.com/press/us/en/pressrelease/48788.wss|archive-url = https://web.archive.org/web/20160118203123/http://www-03.ibm.com/press/us/en/pressrelease/48788.wss|url-status = dead|archive-date = January 18, 2016|website = www-03.ibm.com|date = 2016-01-15|access-date = 2016-01-15|language = en-US}}</ref>
|-
| {{dts|2016| January|21}}
| [[Ustream]]
| Streaming video
| {{Flag|USA}}
|style="text-align:right;"| Not disclosed
|<ref name=tc-ustreamaol>{{cite web|title=IBM Confirms Acquisition Of UStream, Forms New Cloud Video Unit|url=https://techcrunch.com/2016/01/21/ibm-confirms-acquisition-of-ustream-forms-new-cloud-video-unit/|website=TechCrunch|date=21 January 2016 |access-date=21 January 2016}}</ref>
|-
| {{dts|2016| January|28}}
| Resource/Ammirati
| Digital marketing and creative agency
| {{Flag|USA}}
|style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Plans to Acquire Resource/Ammirati to Address Surging Client Demand for the Next Great Customer Experience|url=http://www-03.ibm.com/press/us/en/pressrelease/48893.wss|archive-url=https://web.archive.org/web/20160201171900/http://www-03.ibm.com/press/us/en/pressrelease/48893.wss|url-status=dead|archive-date=February 1, 2016|website=www-03.ibm.com|date = 2016-01-28|access-date = 2016-01-28|language = en-US}}</ref>
|-
| {{dts|2016| February|2}}
| Aperto AG
| Digital marketing and creative agency
| {{Flag|GER}}
|style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Signs Agreement to Acquire Aperto to Meet Growing Client Need for Digital Transformation|url=http://www-03.ibm.com/press/us/en/pressrelease/48871.wss|archive-url=https://web.archive.org/web/20160204220441/http://www-03.ibm.com/press/us/en/pressrelease/48871.wss|url-status=dead|archive-date=February 4, 2016|website=www-03.ibm.com|date = 2016-02-02|access-date = 2016-02-03|language = en-US}}</ref>
|-
| {{dts|2016| February|3}}
| ecx.io AG
| Digital marketing and creative agency
| {{Flag|GER}}
|style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Signs Agreement to Acquire ecx.io to Deliver Stellar Customer Experiences|url=http://www-03.ibm.com/press/us/en/pressrelease/48960.wss|archive-url=https://web.archive.org/web/20160205085835/https://www-03.ibm.com/press/us/en/pressrelease/48960.wss|url-status=dead|archive-date=February 5, 2016|website=www-03.ibm.com|date = 2016-03-02|access-date = 2016-02-03|language = en-US}}</ref>
|-
| {{dts|2016| February|18}}
| [[Truven Health Analytics]]
| Provider of cloud-based healthcare data, analytics and insights
| {{Flag|USA}}
| style="text-align:right;"| $2,600,000,000
|<ref>{{cite web|title=IBM Watson Health Announces Plans to Acquire Truven Health Analytics for $2.6B, Extending Its Leadership in Value-Based Care Solutions|url=http://www-03.ibm.com/press/us/en/pressrelease/49132.wss|archive-url=https://web.archive.org/web/20160219214933/http://www-03.ibm.com/press/us/en/pressrelease/49132.wss|url-status=dead|archive-date=February 19, 2016|website=www-0e.ibm.com|access-date=19 February 2016}}</ref>
|-
| {{dts|2016| February|29}}
| Resilient Systems
| Cyber security, incident response platform
| {{Flag|USA}}
| style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Security To Expand Incident Response Capabilities With Plans To Acquire Resilient Systems|url=http://www-03.ibm.com/press/us/en/pressrelease/49243.wss|archive-url=https://web.archive.org/web/20160303023807/http://www-03.ibm.com/press/us/en/pressrelease/49243.wss|url-status=dead|archive-date=March 3, 2016|website=www-0e.ibm.com|access-date=9 March 2016}}</ref>
|-
| {{dts|2016| March|18}}
| Optevia
| Specialist provider of Microsoft Dynamics CRM based solutions and associated services to the public sector
| {{Flag|UK}}
| style="text-align:right;"| Not disclosed
|<ref>{{cite web|title=IBM Acquires Optevia, Expanding Role as Solutions Provider for Public Sector Clients|url=http://www-03.ibm.com/press/us/en/pressrelease/49357.wss|archive-url=https://web.archive.org/web/20160325011455/http://www-03.ibm.com/press/us/en/pressrelease/49357.wss|url-status=dead|archive-date=March 25, 2016|access-date=1 June 2016}}</ref>
|-
| {{dts|2016|March|31}}
|Blue Wolf Group LLC
|Salesforce systems integrator and professional services
|{{Flag|USA}}
| style="text-align:right;"|$200,000,000
|<ref>{{Cite web|url=https://www-03.ibm.com/press/us/en/pressrelease/49434.wss|archive-url=https://web.archive.org/web/20160403040100/http://www-03.ibm.com/press/us/en/pressrelease/49434.wss|url-status=dead|archive-date=April 3, 2016|title=IBM to Acquire Bluewolf, Boost Consumer-grade Experiences|date=2016-03-31|website=www-03.ibm.com|language=en-US|access-date=2016-04-09}}</ref>
|-
| {{dts|2016|June|1}}
|EZSource
|Application discovery and dashboard visualization
|{{flag|ISR}}
|Not disclosed
|<ref>{{Cite news|url=http://www.pcworld.com/article/3077939/ibm-buys-ezsource-to-help-transform-your-mainframe-apps-for-the-digital-world.html|title=IBM buys EZSource to help transform your mainframe apps for the digital world|newspaper=PCWorld|access-date=2016-12-06}}</ref>
|-
| {{dts|2016|September|29}}
|[[Promontory Financial Group]]
|Risk management and regulatory compliance
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|url=http://www-03.ibm.com/press/us/en/pressrelease/50599.wss|archive-url=https://web.archive.org/web/20160930170859/http://www-03.ibm.com/press/us/en/pressrelease/50599.wss|url-status=dead|archive-date=September 30, 2016|title=IBM to Acquire Promontory & Launch Watson Financial Services|date=2016-09-29|website=www-03.ibm.com|language=en-US|access-date=2016-12-06}}</ref>
|-
| {{dts|2016|October|27}}
|Sanovi Technologies
|Hybrid cloud recovery
|{{flag|IND}}
|Not disclosed
|<ref>{{Cite news|url=http://economictimes.indiatimes.com/tech/software/ibm-to-acquire-indian-it-firm-sanovi-technologies/articleshow/55090233.cms|title=IBM acquires Sanovi Technologies to boost hybrid cloud – The Economic Times|newspaper=The Economic Times|access-date=2016-12-06}}</ref>
|-
| {{dts|2017|February|3}}
|Agile 3 Solutions
|[[Information security]]
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite news|url=http://finance.yahoo.com/news/ibm-closes-acquisition-agile-3-210100477.html|title=IBM Closes Acquisition of Agile 3 Solutions|website=[[Yahoo! Finance]]|access-date=2017-03-07|archive-url=https://web.archive.org/web/20170506020041/http://finance.yahoo.com/news/ibm-closes-acquisition-agile-3-210100477.html|archive-date=2017-05-06|url-status=dead}}</ref>
|-
| {{dts|2017|May|2}}
|Verizon – Cloud services
|Cloud services
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|url=http://www.sohu.com/a/138194754_374240|title=IBM收购Verizon云计算及主机托管业务|date=2017-05-04|website=sohu.com|access-date=2018-11-17}}</ref>
|-
| {{dts|2017|May|31}}
|XCC (division of TIMETOACT)
|[[Collaboration software]]
|{{Flag|GER}}
|Not disclosed
|<ref>{{Cite news|url=http://www-03.ibm.com/press/us/en/pressrelease/52479.wss |archive-url=https://web.archive.org/web/20170616224116/http://www-03.ibm.com/press/us/en/pressrelease/52479.wss |url-status=dead |archive-date=June 16, 2017 |title=IBM Acquires TIMETOACT GROUP's XCC to Launch IBM Connections Engagement Center – a Single Destination for Internal Communications, Collaboration and Employee Engagement |access-date=2017-06-27}}</ref>
|-
| {{dts|2017|September|24}}
|Cloudigo
|Data Center Company
|{{Flag|Israel}}
|Not disclosed
|<ref>{{Cite news|url=http://www.algemeiner.com/2017/09/25/ibm-acquires-israels-cloudigo-data-center-company/|title=IBM Acquires Israel's Cloudigo Data Center Company|work=Algemeiner.com|access-date=2018-11-17|language=en-US}}</ref>
|-
| {{dts|2017|October|5}}
|Vivant Digital
|Innovation Consultancy
|{{flag|AUS}}
|Not disclosed
|<ref>{{Cite news|url=http://www.afr.com/technology/ibm-buys-vivant-digital-a-sydney-innovation-consultancy-20171004-gyuefn|title=IBM buys Sydney innovation consultancy|date=2017-10-05|work=Financial Review|access-date=2017-10-04|language=en-US}}</ref>
|-
| {{dts|2018|May|3}}
|Armanta, Inc. 
|Aggregation/analytics software for financial services firms
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite news|url=https://www.ibm.com/blogs/think/2018/05/finance/|title=IBM Acquires Armanta to Help Financial Services Firms Meet Regulatory, Business Demands – THINK Blog|date=2018-05-03|work=THINK Blog|access-date=2018-09-28|language=en-US}}</ref>
|-
| {{dts|2018|June|15}}
|Oniqua Holdings Pty Ltd.
|Intelligent maintenance repair and operations (MRO) solutions
|{{Flag|USA}}{{flag|AUS}}
|Not disclosed
|<ref>{{Cite news|url=https://newsroom.ibm.com/2018-06-15-IBM-Acquires-Oniqua-Strengthens-Leading-IoT-Capabilities-to-Help-Businesses-Proactively-Maintain-Vital-Assets|title=IBM Acquires Oniqua, Strengthens Leading IoT Capabilities to Help Businesses Proactively Maintain Vital Assets|work=IBM News Room|access-date=2018-09-28|language=en-us}}</ref>
|-
| {{dts|2019|July|9}}
| [[Red Hat]]
| Provider of open source software and solutions
| {{Flag|USA}}
| style="text-align:right;"| $34,000,000,000
|<ref>{{cite web|title=IBM TO ACQUIRE RED HAT, COMPLETELY CHANGING THE CLOUD LANDSCAPE AND BECOMING WORLD'S #1 HYBRID CLOUD PROVIDER |date=28 October 2018 |url=https://www.redhat.com/en/about/press-releases/ibm-acquire-red-hat-completely-changing-cloud-landscape-and-becoming-world’s-1-hybrid-cloud-provider|access-date=29 October 2018}}</ref><ref>{{cite web|title=IBM Closes Landmark Acquisition of Red Hat for $34 Billion; Defines Open, Hybrid Cloud Future |url=https://newsroom.ibm.com/2019-07-09-IBM-Closes-Landmark-Acquisition-of-Red-Hat-for-34-Billion-Defines-Open-Hybrid-Cloud-Future|date = 2019-07-09|access-date = 2019-10-09}}</ref>
|}

==Acquisitions since 2020 ==
Number of acquisitions per year according to table below:
* In 2020 IBM acquired 6 companies
* In 2021 IBM acquired 7 companies
* In 2022 IBM acquired 3 companies
* In 2023 IBM acquired 3 companies
* In 2024 IBM acquired 2 companies
* In 2025 IBM acquired 2 companies

{| class="wikitable sortable"
|-
| {{dts|2020|June|15}}
| Spanugo
| US-based provider of cloud cybersecurity posture management solutions
| {{Flag|USA}}
| Not disclosed
|<ref>{{Cite news|url=https://newsroom.ibm.com/2020-06-15-IBM-Acquires-Assets-from-Spanugo|title=IBM Acquires Spanugo, Strategic acquisition further positions IBM to deliver secure, compliance-ready and industry-specific public cloud capabilities to clients in highly regulated industries|work=IBM News Room|access-date=2020-06-15|language=en-us}}</ref>
|-
| {{dts|2020|July|8}}
| WDG
| IBM to Acquire WDG Automation to Advance AI-Infused Automation Capabilities for Enterprises
| {{Flag|BRA}}
| Not disclosed
|<ref>{{Cite news|url=https://newsroom.ibm.com/2020-07-08-IBM-to-Acquire-WDG-Automation-to-Advance-AI-Infused-Automation-Capabilities-for-Enterprises|title=IBM to Acquire WDG Automation to Advance AI-Infused Automation Capabilities for Enterprises|work=IBM News Room|access-date=2020-07-08|language=en-us}}</ref>
|-
|November 16, 2020
|TruQua Enterprises
|Acquisition enhances IBM's expertise in migrating financial platforms to SAP
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite news|url=https://newsroom.ibm.com/2020-11-16-IBM-to-Acquire-SAP-Consulting-Partner-TruQua|title=IBM to Acquire SAP Consulting Partner TruQua|work=IBM News Room|access-date=2020-11-16|language=en-us}}</ref>
|-
|November 18, 2020
|[[Instana]]
|Acquisition continues to advance IBM's Hybrid Cloud and AIOps strategy with Application Performance Management and enterprise Observability capabilities
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite news|url=https://newsroom.ibm.com/2020-11-18-IBM-to-Acquire-Instana-as-Company-Continues-to-Advance-its-Hybrid-Cloud-and-AI-Strategy|title=IBM to Acquire Instana|work=IBM News Room|access-date=2020-11-18|language=en-us}}</ref>
|-
|December 15, 2020
|Expertus Technologies Inc.
|Digital payments provider
| {{Flag|CAN}}
|Not disclosed
|<ref>{{Cite web|title=IBM Acquires Expertus Technologies Inc. to Expand Hybrid Cloud Digital Payment Solutions|url=https://newsroom.ibm.com/2020-12-15-IBM-Acquires-Expertus-Technologies-Inc-to-Expand-Hybrid-Cloud-Digital-Payment-Solutions}}</ref>
|-
|December 21, 2020
|Nordcloud
|Acquisition enhances IBM's Hybrid Cloud Consulting capabilities
|{{Flag|FIN}}
|Not disclosed
|<ref>{{cite web |title=IBM to Acquire Nordcloud to Turbocharge Its Hybrid Cloud Consulting Capability |url=https://newsroom.ibm.com/2020-12-21-IBM-to-Acquire-Nordcloud-to-Turbocharge-Its-Hybrid-Cloud-Consulting-Capability |website=IBM News Room |language=en-us}}</ref>
|-
|January 11, 2021
|7Summits
|Acquisition drives digital transformations for Salesforce clients
|{{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|title=IBM Acquires 7Summits to Drive Digital Transformations for Salesforce Clients|url=https://newsroom.ibm.com/2021-01-11-IBM-Acquires-7Summits-to-Drive-Digital-Transformations-for-Salesforce-Clients|access-date=2021-01-12|website=IBM News Room|language=en-us}}</ref>
|-
|Jan 14, 2021
|[[Taos (consulting company)|Taos]]
|Acquisition to expand hybrid cloud consulting services
| {{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|title=IBM Boosts Its Hybrid Cloud Consulting Capability with Taos|url=https://newsroom.ibm.com/2021-01-14-IBM-Boosts-Its-Hybrid-Cloud-Consulting-Capability-with-Taos}}</ref>
|-
|April 15, 2021
|myInvenio
|Acquisition to help Organizations Use AI-powered Automation to Better Streamline Business Processes
| {{Flag|ITA}}
|Not disclosed
|<ref>{{Cite web|title=IBM to Acquire myInvenio to help Organizations Use AI-powered Automation to Better Streamline Business Processes|url=https://newsroom.ibm.com/2021-04-15-IBM-to-Acquire-myInvenio-to-help-Organizations-Use-AI-powered-Automation-to-Better-Streamline-Business-Processes}}</ref>
|-
|May 18, 2021
|[[Waeg]]
|Acquisition to expand Salesforce consulting services
| {{Flag|Belgium}}
|Not disclosed
|<ref>{{Cite web|title=IBM Acquires Waeg to Deepen Expertise Across the Salesforce Platform in Europe|url=https://newsroom.ibm.com/2021-05-18-IBM-Acquires-Waeg-to-Deepen-Expertise-Across-the-Salesforce-Platform-in-Europe}}</ref>
|-
|June 17, 2021
|[[Turbonomic]]
|Acquisition to expand AIOps (the use of AI to automate IT Operations) to application and infrastructure observability. This also included [[SevOne]], a network performance management solution as part of the acquisition. 
| {{Flag|USA}}
| Estimated $1,500,000,000 - $2,000,000,000 <ref>{{cite web | url=https://finance.yahoo.com/news/exclusive-ibm-acquire-software-provider-145518210.html | title=IBM to acquire software provider Turbonomic for over $1.5 billion | work=Yahoo Finance | date=29 April 2021 }}</ref>
|<ref>{{Cite web|title=IBM to Acquire Turbonomic Building Industry's Most Comprehensive AIOps Capabilities for Hybrid Cloud|url=https://newsroom.ibm.com/2021-04-29-IBM-to-Acquire-Turbonomic-Building-Industrys-Most-Comprehensive-AIOps-Capabilities-for-Hybrid-Cloud}}</ref><ref>{{Cite web|title=IBM Closes Acquisition of Turbonomic to Deliver Comprehensive AIOps Capabilities for Hybrid Cloud|url=https://newsroom.ibm.com/2021-06-17-IBM-Closes-Acquisition-of-Turbonomic-to-Deliver-Comprehensive-AIOps-Capabilities-for-Hybrid-Cloud}}</ref>
|-
|July 8, 2021
|BoxBoat Technologies
|DevOps consultancy and enterprise Kubernetes certified service provider
| {{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|title=IBM to Acquire Premier Hybrid Cloud Consulting Firm|url=https://newsroom.ibm.com/2021-07-08-IBM-to-Acquire-Premier-Hybrid-Cloud-Consulting-Firm}}</ref>
|-
|July 15, 2021
|Bluetab Solutions Group, S.L.
|Hybrid cloud data and analytics consulting
| {{Flag|SPA}}
|Not disclosed
|<ref>{{Cite web|title=IBM to Acquire Bluetab to Expand Data and Hybrid Cloud Consulting Services in Europe and Latin America|url=https://newsroom.ibm.com/2021-07-15-IBM-to-Acquire-Bluetab-to-Expand-Data-and-Hybrid-Cloud-Consulting-Services-in-Europe-and-Latin-America}}</ref>
|-
|-
|January 11, 2022
|Envizi
|Sustainability data management and reporting platform
| {{Flag|Australia}}
|Not disclosed
|<ref>{{Cite web|title=IBM Acquires Envizi|url=https://newsroom.ibm.com/2022-01-11-IBM-Acquires-Envizi-to-Help-Organizations-Accelerate-Sustainability-Initiatives-and-Achieve-Environmental-Goals}}</ref>
|-
|Feb 15, 2022
|Neudesic
|Cloud services consultancy specializing primarily in the Microsoft Azure platform, along with bringing skills in multicloud
| {{Flag|USA}}
|Not disclosed
|<ref>{{Cite web|title=IBM Acquires Neudesic, Leading Microsoft Azure Consultancy|url=https://newsroom.ibm.com/2022-02-15-IBM-Acquires-Neudesic,-Leading-Microsoft-Azure-Consultancy}}</ref>
|-
|September 22, 2022
|Dialexa
|Digital product engineering services
| {{Flag|USA}}
|Not disclosed
|<ref>{{Cite web |last=Walters |first=Natalie |date=2022-09-22 |title=IBM acquires Dallas tech firm Dialexa for digital product expertise|url=https://www.dallasnews.com/business/local-companies/2022/09/22/ibm-acquires-dallas-tech-firm-dialexa-for-digital-product-expertise/ |work=[[The Dallas Morning News]]}}</ref>
|-
|December 2022
|Octo
|
| {{Flag|USA}}
|Not disclosed
|
|-
|February 8, 2023
|StepZen
|GraphQL-as-a-Service
| {{Flag|USA}}
|Not disclosed
|<ref>{{Cite web |title=IBM Acquires StepZen to Help Enterprises Get More Business Value from Their Data and APIs|url=https://newsroom.ibm.com/IBM-Acquires-StepZen-to-Help-Enterprises-Get-More-Business-Value-from-Their-Data-and-APIs}}</ref>
|-
|{{dts|2023|May|16}}
|[[Polar Security]]
|Cyber Security, Data Security Posture Management (DSPM)
| {{Flag|ISR}}
|style="text-align:right;"| $60,000,000
|<ref>{{cite news |last=CTech |first=CTech |date=May 16, 2023 |title=IBM acquires Polar Security for $60 million to help automate cloud data protection |url=https://www.calcalistech.com/ctechnews/article/bkr11bmws2 |publisher=CTech}}</ref>
|-
|{{dts|2023|June|26}}
|[[Apptio]]
|Software-as-a-service
| {{Flag|USA}}
|style="text-align:right;"| $4,600,000,000
|<ref>{{cite news |last=Malik |first=Yuvraj |date=June 26, 2023 |title=IBM to buy software co Apptio for $4.6 bln to bolster cloud offerings |url=https://www.reuters.com/markets/deals/ibm-acquire-software-firm-apptio-46-bln-2023-06-26/ |publisher=Reuters}}</ref>
|-
|December 18, 2023
|Streamsets
|Data integration
|{{Flag|GER}}
|
|<ref>{{Cite web |last=Sawers |first=Paul |date=December 18, 2023 |title=IBM to acquire StreamSets and WebMethods from Software AG for $2.3B |url=https://techcrunch.com/2023/12/18/ibm-to-acquire-streamsets-and-webmethods-from-software-ag/ |website=TechCrunch}}</ref>
|-
|March 20, 2024
|Pliant
|Network and IT infrastructure automation
|{{Flag|USA}}
|Not disclosed
|style="text-align:center;"|<ref>{{Cite web |title=IBM Acquires Pliant to Further Enhance Network IT Automation Capabilities |url=https://newsroom.ibm.com/Blog-IBM-Acquires-Pliant-to-Further-Enhance-Network-IT-Automation-Capabilities |publisher=[[IBM]] |date=March 20, 2024 |access-date=3 May 2024}}</ref>
|-
|April 24, 2024
|[[HashiCorp]]
|Infrastructure and security automation
|{{Flag|USA}}
|style="text-align:right;"| $7,700,000,000
|<ref>{{cite web |title=IBM to Acquire HashiCorp, Inc. Creating a Comprehensive End-to-End Hybrid Cloud Platform |url=https://newsroom.ibm.com/2024-04-24-IBM-to-Acquire-HashiCorp-Inc-Creating-a-Comprehensive-End-to-End-Hybrid-Cloud-Platform |publisher=[[IBM]] |access-date=24 April 2024}}</ref>
|-
|February 25, 2025
|[[DataStax]]
| AI applications
|{{Flag|USA}}
|Not disclosed
|<ref>{{cite web |title=IBM to acquire DataStax, helping clients bring the power of unstructured data to enterprise AI applications |url=https://www.ibm.com/new/announcements/ibm-to-acquire-datastax-helping-clients-bring-the-power-of-unstructured-data-to-enterprise-ai-applications |publisher=[[IBM]] |access-date=25 February 2025}}</ref>
|-
|June 2, 2025
|SeekAI
| AI applications
|{{Flag|USA}}
|Not disclosed
|<ref>{{cite web |title=IBM Unveils watsonx AI Labs: The Ultimate Accelerator for AI Builders, Startups and Enterprises in New York City |url=https://newsroom.ibm.com/2025-06-02-ibm-unveils-watsonx-ai-labs-the-ultimate-accelerator-for-ai-builders,-startups-and-enterprises-in-new-york-city |publisher=[[IBM]] |access-date=2 June 2025}}</ref>
|}

==Spin-offs==
*1934 – Dayton Scale Division is sold to the Hobart Manufacturing Company.
*1942 – Ticketograph Division is sold to the National Postal Meter Company.
*1958 – Time Equipment Division is sold to the [[SimplexGrinnell|Simplex Time Recorder Company]].
*1974 – [[Service Bureau Corporation]] sold to [[Control Data Corporation]]
*1984 – [[Prodigy (ISP)|Prodigy]], formerly a joint venture with [[Sears, Roebuck and Company]].
*1985 – [[Satellite Business Systems]] sold to [[MCI Communications]]
*1988 – Copier/Duplicator business, including service and support contracts, sold to [[Eastman Kodak]].<ref>{{cite web|url=http://www-03.ibm.com/ibm/history/history/year_1988.html |archive-url=https://web.archive.org/web/20041216110621/http://www-03.ibm.com/ibm/history/history/year_1988.html |url-status=dead |archive-date=December 16, 2004 |title=IBM Archives: 1980s |date=23 January 2003 |publisher=03.ibm.com |access-date=2013-12-20}}</ref><ref>{{cite web|author=APPublished: October 20, 1988 |url=https://query.nytimes.com/gst/fullpage.html?res=940DE0DD1330F933A15753C1A96E948260 |title=COMPANY NEWS; Kodak Buys I.B.M. Copier Agreements |work=New York Times |date=1988-10-20 |access-date=2013-12-20}}</ref>
*1990 – ARDIS mobile packet network, a joint venture with [[Motorola]]. Motorola buys IBM's 50% interest in 1994. Now Motient.
*1991 – [[Lexmark]] (keyboards, typewriters, and printers). IBM retained a 10% interest. Lexmark has sold its keyboard and typewriter businesses.
*1991 – [[Kaleida Labs|Kaleida]], a joint Multimedia software venture with [[Apple Computer]].
*1992 – [[Taligent]], a joint software venture with [[Apple Computer]].
*1992 – IBM's personal computer manufacturing divisions, combined and spun off to form the autonomous subsidiary [[IBM Personal Computer Company]] (later IBM Personal Systems Group).
*1992 – IBM Commercial Multimedia Technologies Group, spun off to form private company Fairway Technologies.
*1992 – IBM sells its remaining 50 percent stake in the Rolm Company to [[Siemens A.G.]] of Germany.<ref>{{cite web|url=https://www.nytimes.com/1992/05/08/business/company-news-rolm-sale-by-ibm-to-siemens.html|author=Lohr, S.|title=Rolm Sale By I.B.M. To Siemens|work=New York Times|date=May 8, 1992}}</ref>
*1994 – Xyratex enterprise data storage subsystems and network technology, formed in a management buy-out from IBM.
*1995 – Advantis (Advanced Value-Added Networking Technology of IBM & Sears), a voice and data network company. Joint Venture with IBM holding 70%, Sears holding 30%. IBM buys Sears' 30% interest in 1997. AT&T acquires the infrastructure portion of Advantis in 1999, becoming the AT&T Global Network. IBM retained business and strategic outsourcing portions of the joint venture.
*1994 – Federal Systems Division sold to [[Loral Space & Communications|Loral]] becoming Loral Federal Systems. The Federal Systems Division performed work for NASA.  Loral was later acquired by [[Lockheed Martin]].
*1996 – [[Celestica]], Electronic Manufacturing Services (EMS).
*1998 – IBM Global Network sold to [[AT&T]] to form [[AT&T Business Internet]].
*1999 – Dominion Semiconductor (DSC) IBM sells its 50% share to JV partner [[Toshiba]].  DSC becomes a wholly owned subsidiary of Toshiba.
*2001 – Information Services Extended department, developer of specialized databases and software for telephone directory assistance, is spun off to form privately held company ISx, Inc (later sold to Local Matters).
*December 31, 2002 – IBM sells its HDD business to [[Hitachi Global Storage Technologies]] for approximately $2 billion. [[Hitachi Global Storage Technologies]] now provides many of the hardware storage devices formerly provided by IBM, including IBM hard drives and the [[Hitachi Microdrive|Microdrive]]. IBM continues to develop storage systems, including [[Tape drive|tape backup]], storage software and [[enterprise storage]].
*December 2004 – [[Acquisition of the IBM PC business by Lenovo]]: [[Lenovo]] acquires 90% interest in IBM Personal Systems Group, 10,000 employees and $9 billion in revenue.
*April 3, 2006 – Web analytics provider Coremetrics acquires SurfAid Analytics, a standalone division of IBM Global Services. The deal was said to be in the "eight-figure" range, making it worth at least $10 million. (Note: Since then Coremetrics has in turn been acquired by IBM)
*January 25, 2007 – Three-year joint venture with IBM Printing Systems division and [[Ricoh]] to form new Ricoh-owned subsidiary, InfoPrint Solutions Company, for $725 million.
*September 2009 – IBM launches online business IT video advice service in association with GuruOnline.
*September 2009 – IBM sells its U2 multivalue database and application development products (created by [[VMark Software Inc|VMark]], UniData, System Builder and Prime Computer, obtained via the Informix acquisition) to Rocket Software
*April 2012 – IBM sells its Retail Store Solutions division (Point-of-Sales) to [[Toshiba|Toshiba TEC]]<ref>{{cite press release | title = Toshiba TEC to Acquire IBM's Retail Store Point-of-Sale Solutions Business; Agreement Allows Both to Tap Growing Smarter Commerce Opportunity | publisher = [[IBM]] | date = 2012-04-17 | url =http://www-03.ibm.com/press/us/en/pressrelease/37446.wss | archive-url =https://web.archive.org/web/20120420153204/http://www-03.ibm.com/press/us/en/pressrelease/37446.wss | url-status =dead | archive-date =April 20, 2012 | access-date = 2012-04-17}}</ref>
*January 2014 – IBM sells its [[IBM System x]] business to [[Lenovo]] for $2.3 billion.<ref>{{cite web|url=https://www-03.ibm.com/press/us/en/pressrelease/43016.wss|archive-url=https://web.archive.org/web/20140125033627/http://www-03.ibm.com/press/us/en/pressrelease/43016.wss|url-status=dead|archive-date=January 25, 2014|title=Lenovo Plans to Acquire IBM's x86 Server Business|date=2014-01-24|publisher=[[IBM]]}}</ref>
*October 2014 – IBM sells its [[IBM Microelectronics|Microelectronics]] (semiconductor) branch to [[GlobalFoundries]]. IBM will pay GlobalFoundries $1.5 billion over 3 years to take over the business.<ref>{{cite press release | title = GLOBALFOUNDRIES to Acquire IBM's Microelectronics Business | publisher = [[IBM]] | date = 2014-10-20 | url =http://www-03.ibm.com/press/us/en/pressrelease/45110.wss | archive-url =https://web.archive.org/web/20141021171932/http://www-03.ibm.com/press/us/en/pressrelease/45110.wss | url-status =dead | archive-date =October 21, 2014 | access-date = 2014-10-21}}</ref>
*December 2014 – [[UNICOM Global]] acquires IBM Rational Focal Point and IBM Rational Purify Plus.<ref>{{cite web|url=https://www.unicomglobal.com/news/unicom-global-acquires-ibm-rational-focal-point-and-rational-purifyplustm-solutions-ibm-corp/|title=UNICOM® Global Acquires IBM® Rational® Focal Point and Rational® PurifyPlusTM Solutions from IBM Corp.: Transaction Brings Over 2,000 Customers in 40 Countries to UNICOM|date=2015-01-01|publisher=UNICOM Global}}</ref>
*January 2015 – IBM sells Algorithmics Collateral to SmartStream Technologies <ref>{{cite web|url=https://www.smartstream-stp.com/Company/Press_Releases/2015/02/04_SmartStream_Acquires_Algorithmics_Collateral_Assets_From_IBM|title=SmartStream Acquires Algorithmics Collateral Assets From IBM to Further Expand its Cash and Liquidity Management Offerings|date=2015-02-04|publisher=SmartStream}}</ref>
*December 2015 – UNICOM Global acquires IBM Rational System Architect <ref>{{cite web|url=https://www.unicomsi.com/news-events/news/unicom-global-acquires-ibm-rational-system-architect-ibm-corp/|title=UNICOM® Global Acquires IBM® Rational® System Architect from IBM Corp.: Acquisition is the 7th Transaction between IBM and UNICOM in 24 months|date=2015-12-31|publisher=UNICOM Systems, Inc}}</ref>
*December 2018 – HCL Technologies to acquire Select IBM Software Products for $1.8B.<ref>{{cite web|url=HCL Technologies to Acquire Select IBM Software Products for $1.8B|title=HCL Technologies to Acquire Select IBM Software Products for $1.8B|date=2018-12-06|publisher=[[IBM]]}}</ref>
*July 2019 – IBM Watson Marketing business spins off into standalone company Acoustic, after acquisition by [[Centerbridge Partners]]<ref>{{cite web|url=https://www.zdnet.com/article/ibms-watson-marketing-breaks-off-into-separate-company/ |title=IBM's Watson Marketing breaks off into separate company |publisher=ZDNet |access-date=2020-12-10}}</ref><ref>{{cite web|url=https://www.ibm.com/supply-chain/acoustic-divestiture |title=IBM Watson Marketing is now Acoustic |publisher=IBM |access-date=2020-12-10}}</ref>
*October 8, 2020 – IBM announced it was spinning off the Managed Infrastructure Services unit of its [[IBM Global Services#IBM Global Technology Services|Global Technology Services]] division into a new public company, an action expected to be completed by the end of 2021.<ref>{{Cite web|url=https://www.cnbc.com/2020/10/08/ibm-shares-surge-on-plans-to-spin-off-unit-into-separate-publicly-traded-company-.html|title=TECH IBM shares soar on plans to spin off its IT infrastructure unit and focus on the cloud business|date=2020-10-08|website=www.cnbc.com|language=en-US|access-date=2020-10-08}}</ref>
*November 3, 2021 Kyndryl. IBM distributed 80.1% of its Kyndryl shares to IBM shareholders.  
* January 21, 2022 – IBM announced that it would sell [[IBM Watson Health|Watson Health]] to the private equity firm [[Francisco Partners]].<ref>{{cite news|title=IBM sells Watson Health assets to investment firm Francisco Partners|url=https://www.zdnet.com/article/ibm-sells-watson-health-assets-to-investment-firm-francisco-partners/|work=[[ZDNet]]|last=Condon|first=Stephanie|date=January 21, 2022|access-date=January 21, 2022}}</ref>
* August 22, 2023 — IBM announced that the private equity firm [[Francisco Partners]] would acquire [[The Weather Company]] assets.<ref>{{cite news|title=Francisco Partners to Acquire The Weather Company Assets from IBM|url=https://newsroom.ibm.com/2023-08-22-Francisco-Partners-to-Acquire-The-Weather-Company-Assets-from-IBM|date=August 22, 2023|access-date=June 16, 2024}}</ref>

== See also ==
* [[List of largest mergers and acquisitions]]
* [[Lists of corporate acquisitions and mergers]]

==References==
{{Reflist|2|refs=
<ref name=GT-1996-33-01>{{Cite news | title =IBM to acquire Data Sciences | newspaper =New Straits Times  | url=https://news.google.com/newspapers?nid=1309&dat=19960307&id=9_1OAAAAIBAJ&pg=4876,3226990| access-date = 29 August 2012}}</ref>
}}

==External links==
*[http://www.ibm.com/investor/strategy/acquisitions.wss IBM list of selected acquisitions]

{{IBM}}
{{List of mergers and acquisitions by}}

{{DEFAULTSORT:List Of Mergers And Acquisitions By Ibm}}
[[Category:IBM acquisitions|*]]
[[Category:IBM lists|mergers and acquisitions]]
[[Category:Lists of corporate mergers and acquisitions|IBM]]