| No. | Acquisition date | Company | Business | Country | Value (USD) | Derived products | References | 
| 1 | 000000001997-09-01-0000September 1997 | Net Controls | Web search engine |  USA | $7006140000000000000♠1,400,000 | Yahoo! Search | [7][8] | 
| 2 | 000000001997-10-08-0000October 8, 1997 | Four11 | Web-based email |  USA | $7007920000000000000♠92,000,000 | Yahoo! Mail | [9] | 
| 3 | 000000001998-03-31-0000March 31, 1998 | Classic Games | Online game |  USA | — | Yahoo! Games | [10] | 
| 4 | 000000001998-04-29-0000April 29, 1998 | Sportasy | Fantasy sport |  USA | — | Yahoo! Fantasy Sports | [11] | 
| 5 | 000000001998-06-08-0000June 8, 1998 | Viaweb | Web application |  USA | $7007486000000000000♠48,600,000 | Yahoo! Store | [12][13] | 
| 6 | 000000001998-07-17-0000July 17, 1998 | Webcal | Calendaring software |  USA | $7007210000000000000♠21,000,000 | Yahoo Calendar | [14] | 
| 7 | 000000001998-10-12-0000October 12, 1998 | Yoyodyne | Direct marketing |  USA | $7007296000000000000♠29,600,000 | Yahoo! Search Marketing | [15] | 
| 8 | 000000001998-12-01-0000December 1998 | Hyperparallel | Data analysis |  USA | $7006810000000000000♠8,100,000 | Yahoo! Search | [13][16] | 
| 9 | 000000001999-04-01-0000April 1, 1999 | Broadcast.com | Internet radio |  USA | $7009570000000000000♠5,700,000,000 | Yahoo! Music Radio (defunct) | [17] | 
| 10 | 000000001999-05-27-0000May 27, 1999 | Encompass | Internet service provider |  USA | $7008130000000000000♠130,000,000 | Yahoo! | [18] | 
| 11 | 000000001999-05-28-0000May 28, 1999 | GeoCities | Web hosting service |  USA | $7009360000000000000♠3,600,000,000 | Yahoo! GeoCities | [19] | 
| 12 | 000000001999-06-02-0000June 2, 1999 | Online Anywhere | Content delivery network |  USA | $7007800000000000000♠80,000,000 | Yahoo! TV | [20] | 
| 13 | 000000002000-03-23-0000March 23, 2000 | Arthas.com | E-commerce payment systems |  USA | — | Yahoo! Store | [21] | 
| 14 | 000000002000-04-05-0000April 5, 2000 | MyQuest | Internet service provider |  USA | — | Yahoo! | [22] | 
| 15 | 000000002000-06-30-0000June 30, 2000 | VivaSmart | E-commerce |  USA | $7006890000000000000♠8,900,000 | Yahoo! Shopping | [23] | 
| 16 | 000000002000-08-31-0000August 31, 2000 | eGroups | Electronic mailing list |  USA | $7008432000000000000♠432,000,000 | Yahoo! Groups | [24] | 
| 17 | 000000002000-11-09-0000November 9, 2000 | Kimo | Web portal |  TWN | $7008145000000000000♠145,000,000 | Yahoo! | [25] | 
| 18 | 000000002001-02-14-0000February 14, 2001 | Sold.com.au | Online auction tools |  AUS | $7007300000000000000♠30,000,000 | Yahoo! Shopping | [26] | 
| 19 | 000000002001-06-28-0000June 28, 2001 | LAUNCH Media | Online music store |  USA | $7007120000000000000♠12,000,000 | Yahoo! Music | [27] | 
| 20 | 000000002002-02-12-0000February 12, 2002 | Hotjobs.com | Job search engine |  USA | $7008436000000000000♠436,000,000 | Yahoo! HotJobs | [28] | 
| 21 | 000000002002-12-23-0000December 23, 2002 | Inktomi Corporation | Internet service provider |  USA | $7008235000000000000♠235,000,000 | Yahoo! Search | [29] | 
| 22 | 000000002003-06-14-0000June 14, 2003 | Overture Services, Inc. | Search engine marketing |  USA | $7009163000000000000♠1,630,000,000 | Yahoo! Search Marketing | [30] | 
| 23 | 000000002004-01-01-0000January 2004 | 3721 Internet Assistant | Browser Helper Object |  CHN | $7008120000000000000♠120,000,000 | Yahoo! Assistant | [31] | 
| 24 | 000000002004-03-26-0000March 26, 2004 | Kelkoo | Price comparison service |  EU | $7008579000000000000♠579,000,000 | Kelkoo | [32] | 
| 25 | 000000002004-07-12-0000July 12, 2004 | Oddpost | Web-based email |  USA | $7007300000000000000♠30,000,000 | Yahoo! Mail | [33] | 
| 26 | 000000002004-09-14-0000September 14, 2004 | Musicmatch Jukebox | Audio player |  USA | $7008160000000000000♠160,000,000 | Yahoo! Music | [34] | 
| 27 | 000000002004-10-02-0000October 2, 2004 | The All-Seeing Eye | Game server browser |  EU | — | Yahoo! Games | [35] | 
| 28 | 000000002004-10-22-0000October 22, 2004 | Stata Labs | Web-based email |  USA | — | Yahoo! Mail | [36] | 
| 29 | 000000002004-12-07-0000December 7, 2004 | WUF Networks | Mobile media |  USA | — | Yahoo! Mobile | [37] | 
| 30 | 000000002005-02-11-0000February 11, 2005 | Verdisoft | Wireless data sharing |  USA | $7007580000000000000♠58,000,000 | Yahoo! Mobile | [38] | 
| 31 | 000000002005-03-04-0000March 4, 2005 | Stadeon | Online game |  USA | — | Yahoo! Games | [39] | 
| 32 | 000000002005-03-20-0000March 20, 2005 | Ludicorp | Image hosting service |  CAN | $7007400000000000000♠40,000,000 | Flickr | [40] | 
| 33 | 000000002005-04-12-0000April 12, 2005 | TeRespondo | Advertising network |  BRA | — | Yahoo! Search Marketing | [41] | 
| 34 | 000000002005-06-14-0000June 14, 2005 | Dialpad | Voice over Internet Protocol |  USA | — | Yahoo! Voice | [42] | 
| 35 | 000000002005-06-14-0000June 14, 2005 | blo.gs | Weblog software |  USA | — | Yahoo! 360° | [43] | 
| 36 | 000000002005-07-25-0000July 25, 2005 | Konfabulator | Widget engine |  USA | — | Yahoo! Widgets | [44] | 
| 37 | 000000002005-10-04-0000October 4, 2005 | Upcoming.org | Calendaring software |  USA | — | Yahoo! Local | [45] | 
| 38 | 000000002005-10-18-0000October 18, 2005 | Whereonearth | Web mapping |  UK | — | Yahoo! Search Marketing | [46] | 
| 39 | 000000002005-12-12-0000December 12, 2005 | del.icio.us | Social bookmarking |  USA | $7007200000000000000♠20,000,000 | del.icio.us | [47] | 
| 40 | 000000002006-01-09-0000January 9, 2006 | Webjay | Online music store |  USA | — | Yahoo! Music | [48] | 
| 41 | 000000002006-01-17-0000January 17, 2006 | SearchFox | Web search engine |  USA | — | Yahoo! Search | [49] | 
| 42 | 000000002006-04-18-0000April 18, 2006 | Meedio | Digital video recorder |  USA | — | Yahoo! Go | [50] | 
| 43 | 000000002006-09-27-0000September 27, 2006 | Jumpcut.com | Online video editing |  USA | — | Yahoo! Video | [51] | 
| 44 | 000000002006-10-17-0000October 17, 2006 | AdInterax | Online advertising |  USA | — | Yahoo! Search Marketing | [52] | 
| 45 | 000000002006-11-16-0000November 16, 2006 | Bix.com | Social media |  USA | — | Bix | [53] | 
| 46 | 000000002006-11-17-0000November 17, 2006 | Kenet Works | Mobile software |  EU | $7007250000000000000♠25,000,000 | Yahoo! Mobile | [54] | 
| 47 | 000000002006-12-01-0000December 2006 | Wretch | Virtual community |  TWN | $7007220000000000000♠22,000,000 | Wretch | [55] | 
| 48 | 000000002007-01-08-0000January 8, 2007 | MyBlogLog | Social network service |  USA | — | MyBlogLog | [56] | 
| 49 | 000000002007-04-29-0000April 29, 2007 | Right Media | Online advertising |  USA | $7008850000000000000♠850,000,000 | Yahoo! Search Marketing | [57] | 
| 50 | 000000002007-06-20-0000June 20, 2007 | Rivals.com | College sports |  USA | — | Yahoo! Sports | [58] | 
| 51 | 000000002007-09-04-0000September 4, 2007 | BlueLithium | Advertising network |  USA | $7008300000000000000♠300,000,000 | Yahoo! Search Marketing | [59] | 
| 52 | 000000002007-09-14-0000September 14, 2007 | BuzzTracker | News site |  USA | — | Yahoo! News | [60] | 
| 53 | 000000002007-09-17-0000September 17, 2007 | Zimbra | Collaborative software |  USA | $7008350000000000000♠350,000,000 | Zimbra | [61] | 
| 54 | 000000002008-02-05-0000February 5, 2008 | FoxyTunes | Browser extension |  USA | — | FoxyTunes | [62] | 
| 55 | 000000002008-02-12-0000February 12, 2008 | Maven Networks | Video on demand |  USA | $7008160000000000000♠160,000,000 | Yahoo! Video | [63] | 
| 56 | 000000002008-05-09-0000May 9, 2008 | Inquisitor | Browser extension |  USA | — | Inquisitor | [64] | 
| 57 | 000000002009-07-22-0000July 22, 2009 | Xoopit | Webmail applications |  USA | $7007200000000000000♠20,000,000 | Yahoo! Mail | [65] | 
| 58 | 000000002009-08-25-0000August 25, 2009 | Maktoob.com | Social media |  JOR | $7008167000000000000♠167,000,000 | Maktoob.com | [66] | 
| 59 | 000000002010-03-17-0000March 17, 2010 | citizensports.com | Sports Social media |  USA | — | citizensports.com | [67] | 
| 60 | 000000002010-05-18-0000May 18, 2010 | Associated Content | Content farm |  USA | — | Associated Content | [68] | 
| 61 | 000000002010-05-25-0000May 25, 2010 | Koprol | Geosocial network |  IDN | — | Koprol | [69] | 
| 62 | 000000002010-10-04-0000October 4, 2010 | Dapper | SmartAds |  ISR | $7007550000000000000♠55,000,000 | Dapper | [70] | 
| 63 | 000000002011-01-20-0000January 20, 2011 | Spreets | Daily deals |  AUS | $7007400000000000000♠40,000,000 | Spreets | [71] | 
| 64 | 000000002011-04-25-0000April 25, 2011 | IntoNow | Recognize TV content |  USA | $7007200000000000000♠20,000,000 | IntoNow | [72] | 
| 65 | 000000002011-11-01-0000November 1, 2011 | Interclick | Data driven advertising |  USA | $7008270000000000000♠270,000,000 | Yahoo! Ad Network | [73] | 
| 66 | 000000002012-10-25-0000October 25, 2012 | Stamped | Social recommendation |  USA | — | Yahoo! Mobile | [74] | 
| 67 | 000000002012-12-04-0000December 4, 2012 | OnTheAir | OnTheAir |  USA | — | IntoNow | [75] | 
| 68 | 000000002013-01-22-0000January 22, 2013 | Snip.it | Social network |  USA | $7007100000000000000♠10,000,000 | Snip.it | [76] | 
| 69 | 000000002013-02-12-0000February 12, 2013 | Alike | Social recommendation |  USA | — | Yahoo! Mobile | [77] | 
| 70 | 000000002013-03-20-0000March 20, 2013 | Jybe | Social recommendation |  USA | — | Jybe | [78] | 
| 71 | 000000002013-03-25-0000March 25, 2013 | Summly | News aggregation, summarization |  UK | $7007300000000000000♠30,000,000 | Yahoo App | [79] | 
| 72 | 000000002013-05-01-0000May 1, 2013 | Astrid | Productivity |  USA | — | Astrid | [80][81] | 
| 73 | 000000002013-05-09-0000May 9, 2013 | GoPollGo | Real-time surveys |  USA | — | Yahoo Mobile Properties and Apps | [82] | 
| 74 | 000000002013-05-09-0000May 9, 2013 | MileWise | Flight rewards management |  USA | — | Yahoo Mobile Properties and Apps | [82] | 
| 75 | 000000002013-05-10-0000May 10, 2013 | Loki Studios | Mobile gaming |  USA | — | Yahoo Mobile Properties and Apps | [83] | 
| 76 | 000000002013-05-17-0000May 17, 2013 | Tumblr | Blogging |  USA | $7009110000000000000♠1,100,000,000 |  | [84] | 
| 77 | 000000002013-05-23-0000May 23, 2013 | PlayerScale | Online gaming |  USA | — | Yahoo Mobile Properties and Apps | [85] | 
| 78 | 000000002013-06-12-0000June 12, 2013 | GhostBird Software | Mobile Photography Apps |  USA | — | Yahoo Mobile Properties and Apps | [86] | 
| 79 | 000000002013-06-13-0000June 13, 2013 | Rondee | Video Conferencing |  USA | — | — | [87] | 
| 80 | 000000002013-07-02-0000July 2, 2013 | Bignoggins Productions | Fantasy Sports |  USA | — | — | [88] | 
| 81 | 000000002013-07-02-0000July 2, 2013 | Qwiki | Automated Video Production |  USA | $7007500000000000000♠50,000,000[89] | — | [90] | 
| 82 | 000000002013-07-03-0000July 3, 2013 | Xobni | CRM |  USA | $7007400000000000000♠40,000,000[91] | — | [92] | 
| 83 | 000000002013-07-18-0000July 18, 2013 | Ztelic | Social Analytics |  CHN | — | — | [93] | 
| 84 | 000000002013-07-31-0000July 31, 2013 | Lexity | ecommerce Analytics |  USA | $7007350000000000000♠35,000,000[94] | — | [95] | 
| 85 | 000000002013-08-02-0000August 2, 2013 | Rockmelt | News Aggregator |  USA | — | — | [96] | 
| 86 | 000000002013-08-23-0000August 23, 2013 | IQ Engines | Image Recognition |  USA | — | Flickr | [97] | 
| 87 | 000000002013-09-30-0000September 30, 2013 | Hitpost | Sports |  USA | — | — | [98] | 
| 88 | 000000002013-10-11-0000October 11, 2013 | Bread | Advertising |  USA | — | — | [99] | 
| 89 | 000000002013-10-23-0000October 23, 2013 | LookFlow | Image Recognition |  USA | — | Flickr | [100] | 
| 90 | 000000002013-12-02-0000December 2, 2013 | SkyPhrase | Natural Language Processing | — | — | — | [101] | 
| 91 | 000000002013-12-03-0000December 3, 2013 | Ptch | Video sharing |  USA | $7006650000000000000♠6,500,000 | — | [102] | 
| 92 | 000000002013-12-06-0000December 6, 2013 | EvntLive | Live and on demand music playing |  USA | — | — | [103] | 
| 93 | 000000002013-12-09-0000December 9, 2013 | Quik.io | Cross Platform Video Streaming |  USA | — | — | [104] | 
| 94 | 000000002013-12-17-0000December 17, 2013 | PeerCDN | Content Delivery Network |  USA | — | — | [105] | 
| 95 | 000000002014-01-07-0000January 7, 2014 | Aviate | Intelligent homescreen for the Android OS |  USA | — | — | [106] | 
| 96 | 000000002014-01-21-0000January 21, 2014 | SPARQ | Mobile Marketing |  USA | — | — | [107] | 
| 97 | 000000002014-01-24-0000January 24, 2014 | Cloud Party | Virtual world gaming | — | — | — | [108] | 
| 98 | 000000002014-01-28-0000January 28, 2014 | Tomfoolery | Conversation platform |  USA | — | — | [109] | 
| 99 | 000000002014-01-30-0000January 30, 2014 | Incredible Labs | Time Management App |  USA | — | — | [110] | 
| 100 | 000000002014-02-11-0000February 11, 2014 | Wander | Social Diary |  USA | — | — | [111] | 
| 101 | 000000002014-02-13-0000February 13, 2014 | Distill | Technical Recruiting |  USA | — | — | [112] | 
| 102 | 000000002014-03-05-0000March 5, 2014 | Vizify | Social media information transformation |  USA | — | — | [113] | 
| 103 | 000000002014-05-13-0000May 13, 2014 | Blink | Mobile Messaging |  USA | — | — | [114] | 
| 104 | 000000002014-06-10-0000June 10, 2014 | PhotoDrive | Photo Management |  USA | — | — | [115] | 
| 105 | 000000002014-07-12-0000July 12, 2014 | RayV | Video Streaming Platform |  ISR | — | — | [116] | 
| 106 | 000000002014-07-21-0000July 21, 2014 | Flurry | Mobile Analytics |  USA | $7008200000000000000♠200,000,000 | — | [117] | 
| 107 | 000000002014-08-15-0000August 15, 2014 | ClarityRay | Ad Security |  ISR | — | — | [118] | 
| 108 | 000000002014-09-05-0000September 5, 2014 | Luminate | Advertising |  USA | — | — | [119] | 
| 109 | 000000002014-09-22-0000September 22, 2014 | Bookpad | Document Handling |  IND | $7007150000000000000♠15,000,000 | — | [120] | 
| 110 | 000000002014-10-04-0000October 4, 2014 | LittleInc | Messaging App |  USA | — | — | [121] | 
| 111 | 000000002014-11-11-0000November 11, 2014 | BrightRoll | Online Video Advertising |  USA | $7008640000000000000♠640,000,000 | — | [122] | 
| 112 | 000000002014-11-21-0000November 21, 2014 | Cooliris | Photo Viewing |  USA | — | — | [123] | 
| 113 | 000000002014-12-11-0000December 11, 2014 | Media Group One | Advertising and online video |  GER | — | — | [124] | 
| 114 | 000000002015-07-31-0000July 31, 2015 | Polyvore | Clothing E-commerce website |  USA | $7008160000000000000♠160,000,000 | — | [125][126][127] |