| Company | Acquiror | Price ($mm) | Date |
|---|---|---|---|
| aQuantive | Microsoft | $5,900 | May-07 |
| Doubleclick | $3,100 | Apr-07 | |
| Omniture | Adobe | $1,800 | Sep-09 |
| Overture | Yahoo! | $1,630 | Jul-03 |
| Digitas | Publicis | $1,300 | Dec-06 |
| NetRatings | Nielsen | $817 | Feb-07 |
| AdMob | $750 | Nov-09 | |
| Right Media | Yahoo! | $680 | Jul-07 |
| Lending Tree | IAC | $675 | Aug-03 |
| 24/7 Real Media | WPP | $650 | May-07 |
| Rosetta | Publicis | $575 | May-11 |
| NetGravity | DoubleClick | $530 | Jul-99 |
| Razorfish | Publicis | $530 | Aug-09 |
| Unica | IBM | $480 | Aug-10 |
| Advertising.com | AOL | $435 | Jun-04 |
| Linkshare | Rakuten | $425 | Sep-05 |
| Admeld | $400 | Jun-11 | |
| Visual Sciences | Omniture | $394 | Oct-07 |
| LowerMyBills | Experian | $380 | May-05 |
| Quigo | AOL | $340 | Nov-07 |
| Radian6 | Salesforce | $326 | Mar-11 |
| iCrossing | Hearst | $325 | Jun-10 |
| Adify | Cox | $300 | Apr-08 |
| Blue Lithium | Yahoo! | $300 | Sep-07 |
| Dotomi | ValueClick | $295 | Aug-11 |
| Tacoda | AOL | $275 | Jul-07 |
| Quattro | Apple | $270 | Jan-10 |
| LinkExchange | Microsoft | $265 | Nov-98 |
| Alexa | Amazon | $250 | May-99 |
| Navic | Microsoft | $250 | Jun-08 |
| GSI Commerce | eBay | $230 | Mar-11 |
| Fastclick | ValueClick | $215 | Sep-05 |
| Innovation Interactive | Dentsu | $200 | Jan-10 |
| Massive | Microsoft | $200 | May-06 |
| SBI.Razorfish | aQuantive | $160 | Jun-04 |
| buy.at | AOL | $150 | Feb-08 |
| Digital Impact | Axciom | $140 | Mar-05 |
| Be Free | ValueClick | $129 | May-02 |
| Bigfoot Interactive | Alliance | $120 | Sep-05 |
| EyeWonder | Limelight | $110 | May-10 |
| Jumpstart | Lagardere | $110 | Apr-07 |
| On2 Technologies | $106 | Aug-09 | |
| Applied Semantics | $102 | Apr-03 | |
| dMarc | $102 | Jan-06 | |
| Feedburner | $100 | Jun-07 | |
| Jumpstart Automotive | Hachette | $100 | Apr-07 |
| PointRoll | Gannett | $100 | Jun-05 |
| Schematic | WPP | $100 | Sep-07 |
| Acerno | Akamai | $95 | Oct-08 |
| Third Screen Media | AOL | $90 | May-07 |
| Invite Media | $81 | Jun-10 | |
| AdECN | Microsoft | $70 | Jul-07 |
| Greystripe | ValueClick | $70 | Apr-11 |
| Offermatica | Omniture | $65 | Sep-07 |
| AdRelevance | Media Metrix | $60 | Oct-99 |
| Commission Junction | ValueClick | $58 | Dec-03 |
| BBE | Specific Media | $55 | Oct-10 |
| Touch Clarity | Omniture | $52 | Feb-07 |
| Context Optional | Efficient Frontier | $50 | May-11 |
| Mobclix | Velti | $50 | Oct-10 |
| Mediaplex | ValueClick | $49 | Oct-01 |
| Aptimus | Apollo Group | $48 | Aug-07 |
| M:Metrics | comScore | $44 | May-08 |
| Fetchback | GSI Commerce | $40 | Jun-10 |
| Nedstat | comScore | $37 | Sep-10 |
| IndustryBrains | Marchex | $31 | Jul-05 |
| Accipiter | aQuantive | $30 | Dec-06 |
| Burst Media | Blinkx | $30 | Apr-11 |
| Chintano | Datran | $30 | Aug-07 |
| Urchin | $30 | Mar-05 | |
| Yoyodyne | Yahoo! | $30 | Oct-98 |
| Dapper | Yahoo! | $25 | Oct-10 |
| Yadata | Microsoft | $25 | Feb-08 |
| Adscape | $23 | Feb-07 | |
| AdXpose | ComScore | $22 | Aug-11 |
| ClickAgents | ValueClick | $22 | Dec-00 |
| Pictela | AOL | $20 | Dec-10 |
| VoiceStar | Marchex | $20 | Aug-07 |
| Mediaplex | MediaBank | $18 | Oct-08 |
| Bluestreak | Aegis | $13 | Jun-07 |
| GO TOAST | aQuantive | $13 | Dec-03 |
| goClick | Marchex | $13 | Jul-04 |
| MIVA | AdKnowledge | $12 | Mar-09 |
| onResponse | ValueClick | $12 | Nov-00 |
| Z Media | ValueClick | $12 | Feb-01 |
| Cubics | AdKnowledge | $11 | Dec-07 |
| AdDynamix | Ybrant | $10 | Dec-07 |
| HYPERmedia | Aegis | $9 | Jun-05 |
| JovianData | MarketShare Partners | $8 | Aug-10 |
| DNA | aQuantive | $5 | Dec-05 |
| Net Conversions | aQuantive | $5 | Feb-04 |
| MediaMetrix | comScore | $2 | Jun-02 |
| AdBuyer.com | MediaBank | #N/A | Apr-11 |
| AdInterax | Yahoo! | #N/A | Oct-06 |
| Adonomics | AdKnowledge | #N/A | Sep-08 |
| AdPortal | Glam Media | #N/A | Jul-10 |
| Adroit | MediaMath | #N/A | Apr-10 |
| ADTECH | AOL | #N/A | May-07 |
| Blast Radius | WPP | #N/A | Oct-07 |
| ClearSaleing | GSI Commerce | #N/A | Jan-11 |
| Condaptive | Millenial Media | #N/A | May-11 |
| Coremetrics | IBM | #N/A | Jun-10 |
| Demdex | Adobe | #N/A | Jan-11 |
| Enpocket | Nokia | #N/A | Sep-07 |
| Hydra Group | AdKnowledge | #N/A | Jun-10 |
| i-Frontier | aQuantive | #N/A | Nov-02 |
| iBalls | aQuantive | #N/A | Sep-99 |
| Jambo | Undertone | #N/A | Nov-10 |
| Lightningcast | AOL | #N/A | May-06 |
| Lookery | AdKnowledge | #N/A | Nov-08 |
| Mindset Media | Meebo | #N/A | Feb-11 |
| MonetizeIt | MediaWhiz | #N/A | Jun-06 |
| Motally | Nokia | #N/A | Sep-10 |
| Oggifinogi | Collective | #N/A | Feb-11 |
| Personifi | Collective | #N/A | Jun-08 |
| PostRank | #N/A | Jun-11 | |
| Rapt | Microsoft | #N/A | Mar-08 |
| Rel8tion | #N/A | Jan-11 | |
| ScanScout | Tremor | #N/A | Nov-10 |
| Screen Tonic | Microsoft | #N/A | May-07 |
| SocialMedia | AdKnowledge | #N/A | Nov-09 |
| Spinback | Buddy Media | #N/A | May-11 |
| Sprinks | #N/A | Oct-03 | |
| TapMetrics | Millenial Media | #N/A | Feb-10 |
| Teracent | #N/A | Nov-09 | |
| TeRespondo | Yahoo! | #N/A | Apr-05 |
| TrafficLeader | Marchex | #N/A | Oct-03 |
| Wunderloop | AudienceScience | #N/A | Jul-10 |
| Enliven Marketing/Unicast | DG | #N/A | Oct-08 |
| ADISN | CrowdGather | $6 | Jun-10 |
| Solbright | Operative | #N/A | Oct-10 |
| TrackSimple | BlueKai | $7 | Jan-11 |
| Adometry | Click Forensics | #N/A | Mar-11 |
| WebTV Enterprise | Collective | #N/A | Mar-11 |
| Performable | HubSpot | #N/A | Jun-11 |
| MediaMind | DG | $414 | Jun-11 |
| Tumri | Collective | #N/A | Jul-11 |
| AdJug | Dentsu | #N/A | Aug-11 |