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Company Acquiror Price ($mm) Date
Optimal Brand Networks $35 Oct-13
AdReady CPXi #N/A Oct-13
41st Parameter Experian $324 Oct-13
Xtify IBM #N/A Oct-13
SiteScout Centro $40 Oct-13
Brand.net Valassis <$50 Jun-12
aQuantive Microsoft $5,900 May-07
Doubleclick Google $3,100 Apr-07
Omniture Adobe $1,800 Sep-09
GSI Commerce eBay $2,400 Mar-11
Netezza IBM $1,700 Sep-10
Overture Yahoo! $1,630 Jul-03
Digitas Publicis $1,300 Dec-06
NetRatings Nielsen $817 Feb-07
AdMob Google $750 Nov-09
Right Media Yahoo! $680 Jul-07
Lending Tree IAC $675 Aug-03
TARGUSinfo Neustar $650 Oct-11
24/7 Real Media WPP $649 May-08
Rosetta Publicis $575 May-11
NetGravity DoubleClick $530 Jul-01
Razorfish Publicis $530 Aug-09
Aprimo Teradata $525 Dec-10
Unica IBM $480 Aug-10
Advertising.com AOL $435 Jun-04
Linkshare Rakuten $425 Sep-05
MediaMind DG $414 Jun-11
Adap.tv AOL $405 Aug-13
Admeld Google $400 Jun-11
Efficient Frontier Adobe Systems $400 Nov-11
Visual Sciences Omniture $394 Oct-07
LowerMyBills Experian $380 May-05
Quigo AOL $363 Nov-07
MoPub Twitter $350 Sep-13
Radian6 Salesforce $326 Mar-11
iCrossing Hearst $325 Jun-10
Adify Cox $300 Apr-08
Blue Lithium Yahoo! $300 Sep-07
Vitrue Oracle Corporation $300 May-12
Dotomi ValueClick $295 Aug-11
Tacoda AOL $275 Jul-07
interclick Yahoo! $270 Nov-11
Quattro Apple $270 Jan-10
LinkExchange Microsoft $265 Nov-01
Alexa Amazon $250 May-99
Navic Microsoft $250 Jun-08
Hitwise Experian $240 Apr-07
Fastclick ValueClick $215 Sep-05
Innovation Interactive Dentsu $200 Jan-10
Massive Microsoft $200 May-06
Jumptap Millennial Media $184 Aug-13
SBI.Razorfish aQuantive $160 Jun-04
buy.at AOL $150 Feb-08
Compete Taylor Nelson Sofres $150 Mar-08
Digital Impact Axciom $140 Mar-05
Where eBay $135 Apr-11
Be Free ValueClick $129 May-02
Auditude Adobe Systems $120 Nov-11
Bigfoot Interactive Alliance $120 Sep-05
Aggregate Knowledge Neustar $119 Oct-13
EyeWonder Limelight $110 May-10
Jumpstart Lagardere $110 Apr-07
On2 Technologies Google $106 Aug-09
Applied Semantics Google $102 Apr-03
dMarc Google $102 Jan-06
Adenyo Voltari $100 Jan-11
Feedburner Google $100 Jun-07
Meebo Google $100 Jun-12
PointRoll Gannett $100 Jun-05
Schematic WPP $100 Sep-07
Acerno Akamai $95 Oct-08
BLiNQ Media Gannett $92 Aug-12
Third Screen Media AOL $90 May-07
ScanScout Tremor Video $86 Dec-10
Invite Media Google $81 Jun-10
Mochi Media Shanda Games $80 Jan-10
AdECN Microsoft $70 Jul-07
Greystripe ValueClick $70 Apr-11
EyeWonder (from Limelight) DG FastChannel $66 Aug-11
5min Media AOL $65 Sep-10
Offermatica Omniture $65 Sep-07
Jingle Networks Marchex $63 Apr-11
AdRelevance Media Metrix $60 Oct-01
Tatto Media Ozura World $60 Apr-11
Commission Junction ValueClick $58 Dec-03
Demdex Adobe $58 Jan-11
BBE Specific Media $55 Oct-10
Dapper Yahoo! $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 Google $30 Mar-05
Yoyodyne Yahoo! $30 Oct-01
Condaptive Millennial Media $26 May-11
Yadata Microsoft $25 Feb-08
Adscape Google $23 Feb-07
AdMarvel Opera $23 Jan-10
AdXpose ComScore $22 Aug-11
ClickAgents ValueClick $22 Dec-01
Quova Neustar $22 Nov-10
Pictela AOL $20 Dec-10
VoiceStar Marchex $20 Aug-07
Mediaplex (from ValueClick) MediaBank $18 Oct-08
Peer39 DG $16 Apr-12
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-01
Z Media ValueClick $12 Feb-01
Cubics AdKnowledge $11 Dec-07
AdDynamix Ybrant $10 Dec-07
MediaWhiz Matomy Media Group $10 Jan-13
HYPERmedia Aegis $9 Jun-05
JovianData MarketShare Partners $8 Aug-10
TrackSimple BlueKai $7 Jan-11
ADISN CrowdGather $6 Jun-10
DNA aQuantive $5 Dec-05
Net Conversions aQuantive $5 Feb-04
NuConomy LivePerson $3 Jan-10
SocialMedia.com LivingSocial $3 Apr-11
MediaMetrix comScore $2 Jun-02
Gradient X Amobee #N/A Sep-13
adBrite Site Scout #N/A Jun-13
ToneMedia Cellfish #N/A Jun-13
PrivacyChoice AVG Technologies #N/A May-13
Appature IMS Health #N/A Mar-13
Buysight Advertising.com #N/A Dec-12
Longboard Media Bazaarvoice #N/A Nov-12
Daylife NewsCred #N/A Oct-12
JumpTime OpenX #N/A Oct-12
LucidMedia Videology #N/A Oct-12
mediaFORGE LinkShare #N/A Sep-12
Neverblue GlobalWide Media #N/A Aug-12
Vizu Corporation Nielsen #N/A Jul-12
Clickable Syncapse #N/A Jun-12
ADCentricity Bee Media #N/A Apr-12
LiftDNA OpenX #N/A Feb-12
Tynt 33Across #N/A Jan-12
Panache 24/7 Real Media #N/A Dec-11
AdParlor Adknowledge #N/A Nov-11
smartclip Adconion Media Group #N/A Nov-11
XGraph AddThis #N/A Nov-11
Lijit Networks Federated Media #N/A Oct-11
AdoTube Exponential #N/A Sep-11
OneRiot Walmart #N/A Sep-11
Sprout InMobi #N/A Aug-11
AdJug Dentsu #N/A Aug-11
Tumri Collective #N/A Jul-11
Performable HubSpot #N/A Jun-11
PostRank Google #N/A Jun-11
Spinback Buddy Media #N/A May-11
AdBuyer.com MediaBank #N/A Apr-11
M-Factor DemandTec #N/A Mar-11
ShortTail Media AdGent Digital #N/A Mar-11
Adometry Click Forensics #N/A Mar-11
WebTV Enterprise Collective #N/A Mar-11
Transpera Tremor Video #N/A Feb-11
Mindset Media Meebo #N/A Feb-11
Oggifinogi Collective #N/A Feb-11
ClearSaleing GSI Commerce #N/A Jan-11
Rel8tion Facebook #N/A Jan-11
Jambo Undertone #N/A Nov-10
Solbright Operative #N/A Oct-10
Motally Nokia #N/A Sep-10
Sportgenic Glam Media #N/A Jul-10
AdPortal Glam Media #N/A Jul-10
Wunderloop AudienceScience #N/A Jul-10
Coremetrics IBM #N/A Jun-10
Hydra Group AdKnowledge #N/A Jun-10
MoVoxx Adenyo #N/A May-10
SiteScout the Rubicon Project #N/A May-10
Adroit MediaMath #N/A Apr-10
TapMetrics Millenial Media #N/A Feb-10
Adtuitive Etsy #N/A Dec-09
SocialMedia (ad network part) AdKnowledge #N/A Nov-09
Teracent Google #N/A Nov-09
Pepperjam GSI Commerce #N/A Sep-09
AdWhirl AdMob #N/A Aug-09
PopularMedia StrongView #N/A Jun-09
Ad Infuse Velti #N/A May-09
Kiptronic Limelight Networks #N/A May-09
Lookery AdKnowledge #N/A Nov-08
Enliven Marketing/Unicast DG #N/A Oct-08
Adonomics AdKnowledge #N/A Sep-08
Personifi Collective #N/A Jun-08
Rapt Microsoft #N/A Mar-08
Ingenio AT&T #N/A Nov-07
Blast Radius WPP #N/A Oct-07
Enpocket Nokia #N/A Sep-07
ADTECH AOL #N/A May-07
Screen Tonic Microsoft #N/A May-07
Affinity.com Hostway #N/A Apr-07
AdInterax Yahoo! #N/A Oct-06
MonetizeIt MediaWhiz #N/A Jun-06
Lightningcast AOL #N/A May-06
TeRespondo Yahoo! #N/A Apr-05
Sprinks Google #N/A Oct-03
TrafficLeader Marchex #N/A Oct-03
i-Frontier aQuantive #N/A Nov-02
iBalls aQuantive #N/A Sep-01