List of mergers and acquisitions by Yahoo!

Yahoo! is a computer software and web search engine company founded on March 1, 1995.[1] The company is a public corporation and its headquarters is located in Sunnyvale, California.[2] It was founded by Stanford University graduate students Jerry Yang and David Filo in 1994.[3] According to web traffic analysis companies, Yahoo has been one of the most visited websites on the Internet, with more than 130 million unique users per month in the United States alone.[4][5][6] As of October 2007, the global network of Yahoo receives 3.4 billion page views per day on average, making it one of the most visited US websites.[5]

Yahoo! logo

Yahoo's first acquisition was the purchase of Net Controls, a web search engine company, in September 1997 for US$1.4 million. As of April 2008, the company's largest acquisition is the purchase of Broadcast.com, an Internet radio company, for $5.7 billion, making Broadcast.com co-founder Mark Cuban a billionaire. Most of the companies acquired by Yahoo are based in the United States; 78 of the companies are from the United States, and 15 are based in a foreign country. As of July 2015, Yahoo has acquired 114 companies, with Polyvore being the latest.

Acquisitions
Date Company Business Country Value (USD) Derived products References
September 1997 Net Controls Web search engine  USA $1,400,000 Yahoo! Search [7][8]
October 8, 1997 Four11 Web-based email  USA $92,000,000 Yahoo! Mail [9]
March 31, 1998 Classic Games Online game  USA — Yahoo! Games [10]
April 29, 1998 Sportasy Fantasy sport  USA — Yahoo! Fantasy Sports [11]
June 8, 1998 Viaweb Web application  USA $48,600,000 Yahoo! Store [12][13]
July 17, 1998 Webcal Calendaring software  USA $21,000,000 Yahoo Calendar [14]
October 12, 1998 Yoyodyne Direct marketing  USA $29,600,000 Yahoo! Search Marketing [15]
December 1998 Hyperparallel Data analysis  USA $8,100,000 Yahoo! Search [13][16]
April 1, 1999 Broadcast.com Internet radio  USA $5.7×10^9 Yahoo! Music Radio (defunct) [17]
May 27, 1999 Encompass Internet service provider  USA $130,000,000 Yahoo! [18]
May 28, 1999 GeoCities Web hosting service  USA $3.6×10^9 Yahoo! GeoCities [19]
June 2, 1999 Online Anywhere Content delivery network  USA $80,000,000 Yahoo! TV [20]
March 23, 2000 Arthas.com E-commerce payment systems  USA — Yahoo! Store [21]
April 5, 2000 MyQuest Internet service provider  USA — Yahoo! [22]
June 30, 2000 VivaSmart E-commerce  USA $8,900,000 Yahoo! Shopping [23]
August 31, 2000 eGroups Electronic mailing list  USA $432,000,000 Yahoo! Groups [24]
November 9, 2000 Kimo Web portal  TWN $30,000,000 Yahoo! Kimo [25]
February 14, 2001 Sold.com.au Online auction tools  AUS $30,000,000 Yahoo! Shopping [26]
June 28, 2001 LAUNCH Media Online music store  USA $12,000,000 Yahoo! Music [27]
February 12, 2002 Hotjobs.com Job search engine  USA $436,000,000 Yahoo! HotJobs [28]
December 23, 2002 Inktomi Corporation Internet service provider  USA $235,000,000 Yahoo! Search [29]
June 14, 2003 Overture Services, Inc. Search engine marketing  USA $1.63×10^9 Yahoo! Search Marketing [30]
January 2004 3721 Internet Assistant Browser helper object  CHN $120,000,000 Yahoo! Assistant [31]
March 26, 2004 Kelkoo Price comparison service  EU $579,000,000 Kelkoo [32]
July 12, 2004 Oddpost Web-based email  USA $30,000,000 Yahoo! Mail [33]
September 14, 2004 Musicmatch Jukebox Audio player  USA $160,000,000 Yahoo! Music [34]
October 2, 2004 The All-Seeing Eye Game server browser  EU — Yahoo! Games [35]
October 22, 2004 Stata Labs Web-based email  USA — Yahoo! Mail [36]
December 7, 2004 WUF Networks Mobile media  USA — Yahoo! Mobile [37]
February 11, 2005 Verdisoft Wireless data sharing  USA $58,000,000 Yahoo! Mobile [38]
March 4, 2005 Stadeon Online game  USA — Yahoo! Games [39]
March 20, 2005 Ludicorp Image hosting service  CAN $40,000,000 Flickr [40]
April 12, 2005 TeRespondo Advertising network  BRA — Yahoo! Search Marketing [41]
June 14, 2005 Dialpad Voice over Internet Protocol  USA — Yahoo! Voice [42]
June 14, 2005 blo.gs Weblog software  USA — Yahoo! 360° [43]
July 25, 2005 Konfabulator Widget engine  USA — Yahoo! Widgets [44]
October 4, 2005 Upcoming.org Calendaring software  USA — Yahoo! Local [45]
October 18, 2005 Whereonearth Web mapping  UK — Yahoo! Search Marketing [46]
December 12, 2005 del.icio.us Social bookmarking  USA $20,000,000 del.icio.us [47]
January 9, 2006 Webjay Online music store  USA — Yahoo! Music [48]
January 17, 2006 SearchFox Web search engine  USA — Yahoo! Search [49]
April 18, 2006 Meedio Digital video recorder  USA — Yahoo! Go [50]
September 27, 2006 Jumpcut.com Online video editing  USA — Yahoo! Video [51]
October 17, 2006 AdInterax Online advertising  USA — Yahoo! Search Marketing [52]
November 16, 2006 Bix.com Social media  USA — Bix [53]
November 17, 2006 Kenet Works Mobile software  EU $25,000,000 Yahoo! Mobile [54]
December 2006 Wretch Virtual community  TWN $22,000,000 Wretch [55]
January 8, 2007 MyBlogLog Social network service  USA — MyBlogLog [56]
April 29, 2007 Right Media Online advertising  USA $850,000,000 Yahoo! Search Marketing [57]
June 20, 2007 Rivals.com College sports  USA — Yahoo! Sports [58]
September 4, 2007 BlueLithium Advertising network  USA $300,000,000 Yahoo! Search Marketing [59]
September 14, 2007 BuzzTracker News site  USA — Yahoo! News [60]
September 17, 2007 Zimbra Collaborative software  USA $350,000,000 Zimbra [61]
February 5, 2008 FoxyTunes Browser extension  USA — FoxyTunes [62]
February 12, 2008 Maven Networks Video on demand  USA $160,000,000 Yahoo! Video [63]
May 9, 2008 Inquisitor Browser extension  USA — Inquisitor [64]
July 22, 2009 Xoopit Webmail applications  USA $20,000,000 Yahoo! Mail [65]
August 25, 2009 Maktoob.com Social media  JOR $167,000,000 Maktoob.com [66]
March 17, 2010 citizensports.com Sports social media  USA — citizensports.com [67]
May 18, 2010 Associated Content Content farm  USA $100,000,000 Associated Content [68][69]
May 25, 2010 Koprol Geosocial network  IDN — Koprol [70]
October 4, 2010 Dapper SmartAds  ISR $55,000,000 Dapper [71]
January 20, 2011 Spreets Daily deals  AUS $40,000,000 Spreets [72]
April 25, 2011 IntoNow Recognize TV content  USA $20,000,000 IntoNow [73]
November 1, 2011 Interclick Data driven advertising  USA $270,000,000 Yahoo! Ad Network [74]
October 25, 2012 Stamped Social recommendation  USA — Yahoo! Mobile [75]
December 4, 2012 OnTheAir OnTheAir  USA — IntoNow [76]
January 22, 2013 Snip.it Social network  USA $10,000,000 Snip.it [77]
February 12, 2013 Alike Social recommendation  USA — Yahoo! Mobile [78]
March 20, 2013 Jybe Social recommendation  USA — Jybe [79]
March 25, 2013 Summly News aggregation, summarization  UK $30,000,000 Yahoo App [80]
May 1, 2013 Astrid Productivity  USA — Astrid [81][82]
May 9, 2013 GoPollGo Real-time surveys  USA — Yahoo Mobile Properties and Apps [83]
May 9, 2013 MileWise Flight rewards management  USA — Yahoo Mobile Properties and Apps [83]
May 10, 2013 Loki Studios Mobile gaming  USA — Yahoo Mobile Properties and Apps [84]
May 17, 2013 Tumblr Blogging  USA $1.1×10^9 [85]
May 23, 2013 PlayerScale Online gaming  USA — Yahoo Mobile Properties and Apps [86]
June 12, 2013 GhostBird Software Mobile photography apps  USA — Yahoo Mobile Properties and Apps [87]
June 13, 2013 Rondee Video conferencing  USA — — [88]
July 2, 2013 Bignoggins Productions Fantasy sports  USA — — [89]
July 2, 2013 Qwiki Automated video production  USA $50,000,000[90] — [91]
July 3, 2013 Xobni CRM  USA $68,000,000[92] — [93]
July 18, 2013 Ztelic Social analytics  CHN — — [94]
July 31, 2013 Lexity E-commerce analytics  USA $35,000,000[95] — [96]
August 2, 2013 Rockmelt News aggregator  USA — — [97]
August 23, 2013 IQ Engines Image recognition  USA — Flickr [98]
September 30, 2013 Hitpost Sports  USA — — [99]
October 11, 2013 Bread Advertising  USA — — [100]
October 23, 2013 LookFlow Image recognition  USA — Flickr [101]
December 2, 2013 SkyPhrase Natural language processing — — — [102]
December 3, 2013 Ptch Video sharing  USA $6,500,000 — [103]
December 6, 2013 EvntLive Live and on-demand music playing  USA — — [104]
December 9, 2013 Quik.io Cross-platform video streaming  USA — — [105]
December 17, 2013 PeerCDN Content delivery network  USA — — [106]
January 7, 2014 Aviate Intelligent homescreen for the Android OS  USA — — [107]
January 21, 2014 SPARQ Mobile marketing  USA — — [108]
January 24, 2014 Cloud Party Virtual world gaming — — — [109]
January 28, 2014 Tomfoolery Conversation platform  USA — — [110]
January 30, 2014 Incredible Labs Time management app  USA — — [111]
February 11, 2014 Wander Social diary  USA — — [112]
February 13, 2014 Distill Technical recruiting  USA — — [113]
March 5, 2014 Vizify Social media information transformation  USA — — [114]
May 13, 2014 Blink Mobile messaging  USA — — [115]
June 10, 2014 PhotoDrive Photo management  USA — — [116]
July 12, 2014 RayV Video streaming platform  ISR — — [117]
July 21, 2014 Flurry Mobile analytics  USA $200,000,000 — [118]
August 15, 2014 ClarityRay Ad security  ISR — — [119]
September 5, 2014 Luminate Advertising  USA — — [120]
September 22, 2014 Bookpad Document handling  IND $15,000,000 — [121][122]
October 4, 2014 MessageMe Messaging app  USA — Yahoo! Livetext [123]
November 11, 2014 BrightRoll Online video advertising  USA $640,000,000 — [124]
November 21, 2014 Cooliris Photo viewing  USA — — [125]
December 11, 2014 Media Group One Advertising and online video  GER — — [126]
July 31, 2015 Polyvore Clothing e-commerce website  USA $160,000,000 — [127][128][129]

See also

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