Opt Out of Tracking
You can opt out of any or all of the companies listed below. If you opt out, you will still see ads online, and in some cases data may be collected about your browsing activity, but companies will not use this information to select the ads you see online. For detailed information on how each company uses your data, including their opt-out policies, click on the company name below.
| Name | Category | Affiliations | Opt-out |
|---|---|---|---|
| MiQ | Publisher, Mobile, Marketing solutions | NAI, EDAA Europe | |
| 1&1 Internet | Other, Agency | go to site | |
| 1000mercis | Retargeter, Mobile | IAB, DMA | go to site |
| 161Media | Demand Side Platform | IAB, EDAA Europe | |
| 1DMP | Ad Network | go to site | |
| 1plusX | Analytics Provider, Mobile | go to site | |
| 24-ADS | Ad Network | ||
| 33Across | Ad Network, Data Aggregator/Supplier, Social media | IAB, NAI, DAA | |
| 33Across (fka Tynt Multimedia) | Analytics Provider, Mobile, Website optimisation | IAB, NAI, DAA, EDAA Europe | go to site |
| 4Finance | Other | ||
| 4INFO | Ad Network, Mobile | IAB | go to site |
| 4w Marketplace | Ad Network | go to site | |
| A1 Media Group | Content management/SaaS, Marketing solutions | go to site | |
| A9 | Marketing solutions | go to site | |
| AB Tasty | Other, Content management/SaaS | go to site | |
| Acceptable Ads Exchange (AAX Media) | Ad Exchange | NAI, DAA | go to site |
| Accordant Media | Ad Exchange, Agency | IAB, DAA, EDAA Europe | |
| Accuen Media | Ad Exchange, Agency | NAI, TRUSTe | go to site |
| actionpay | Ad Network | go to site | |
| ActionX | Demand Side Platform, Mobile | IAB | go to site |
| Active Agent | Demand Side Platform, Mobile | go to site | |
| activecore | Data Aggregator/Supplier, Data Management Platform | go to site | |
| Acuity Ads | Demand Side Platform, Mobile | IAB, NAI, DAA | |
| Acxiom | Data Aggregator/Supplier, Data Management Platform | IAB, DAA | go to site |
| AD EBiS | Other | go to site | |
| Ad Maven | Ad Network, Ad Server | go to site | |
| ad pepper media | Ad Network | iASH Europe, EDAA Europe | |
| Ad4Game | Ad Network | ||
| ad4mat | Ad Network | IAB, BVDW Europe, EDAA Europe | go to site |
| ad:C media | Retargeter, Demand Side Platform | go to site | |
| Adacado | Retargeter, Mobile | go to site | |
| adagnit.io | Ad Server | ||
| Adality | Research Provider | go to site | |
| ADARA Analytics | Data Aggregator/Supplier, Mobile | IAB, NAI, TRUSTe, DAA | go to site |
| Adblade | Ad Network | NAI | go to site |
| adbooth Media Group | Ad Network, Ad Server | go to site | |
| Adbox Digital | Ad Server | go to site | |
| Adbrain | Data Management Platform | EDAA Europe | go to site |
| ADCELL | Marketing solutions | go to site | |
| Adchex | Ad Verification | ||
| AdClear | Analytics Provider, Mobile | ||
| AdColony | Ad Network, Mobile, Video | IAB, BBB | go to site |
| AdCompass | Ad Exchange | ||
| Addaptive (Formerly DataPoint Media) | Analytics Provider, Data Management Platform | ||
| AdDefend | Ad Server, Ad Verification, Mobile | IAB | go to site |
| Addictive Mobility | Ad Server, Mobile | IAB, MMA | go to site |
| AddThis | Retargeter, Mobile, Social media | IAB, NAI, DAA, EDAA Europe | go to site |
| AdElement | Ad Network, Mobile | IAB | go to site |
| Adello | Analytics Provider, Optimizer, Retargeter, Ad Server, Mobile, Marketing solutions | IAB | go to site |
| Adelphic | Publisher, Mobile | ||
| Adelphic Mobile | Data Management Platform, Mobile | ||
| AdF.ly | Other | go to site | |
| AdFalcon | Ad Network, Mobile | go to site | |
| Adform | Demand Side Platform, Supply Side Platform, Mobile | IAB UK, EDAA Europe | go to site |
| AdFox | Ad Network | ||
| AdGear | Ad Server, Demand Side Platform, Data Management Platform | go to site | |
| AdGraph | Data Management Platform | go to site | |
| adhood | Ad Network, Analytics Provider, Ad Server, Mobile | go to site | |
| Adiant (Formally Congoo) | Other | go to site | |
| Adikteev | Other, Mobile | go to site | |
| AdInte | Demand Side Platform | go to site | |
| Adition Technologies AG | Ad Server, Mobile | ||
| AdJug | Ad Exchange | EDAA Europe | |
| adjust | Mobile, Business intelligence | go to site | |
| AdKarma | Ad Network | go to site | |
| adKernel | Analytics Provider, Ad Server, Mobile, Content management/SaaS | go to site | |
| Adlocal.net | Optimizer, Retargeter | go to site | |
| ADMAN | Ad Network, Ad Server, Mobile | ||
| AdMatrix | Marketing solutions | go to site | |
| AdMaxim | Ad Network, Mobile | go to site | |
| Admedo | Demand Side Platform, Data Management Platform, Mobile | IAB UK, EDAA Europe | go to site |
| ADmeme | Analytics Provider, Research Provider, Marketing solutions | go to site | |
| AdMetrics Media | Ad Network, Mobile | ||
| AdMicro | Ad Network, Ad Server | go to site | |
| admitad | Ad Network | go to site | |
| ADMIXER | Ad Exchange, Ad Network, Supply Side Platform, Data Management Platform, Mobile | IAB | go to site |
| ADMIZED | Demand Side Platform | go to site | |
| AdMob (Google) | Ad Network, Mobile | IAB | go to site |
| AdNanny | Ad Server | go to site | |
| Adnet | Ad Network | ||
| adNET.de | Ad Server | ||
| Adnetic.io | Creative/Ad Format Technology, Mobile, Content management/SaaS | go to site | |
| Adobe | Advertiser, Analytics Provider, Marketing solutions | IAB, TRUSTe, DAA, ANA, IAB Europe, EDAA Europe | go to site |
| Adobe Creative Cloud | Content management/SaaS | go to site | |
| Adobe Experience Cloud (Advertising) | Ad Network, Analytics Provider, Data Management Platform, Mobile, Marketing solutions | NAI, DAA | |
| Adobe Experience Cloud (Analytics) | Analytics Provider, Mobile | NAI, DAA, EDAA Europe | go to site |
| Adobe Experience Cloud (Audience Manager) | Data Aggregator/Supplier, Data Management Platform | NAI, DAA, EDAA Europe | |
| Adobe Experience Cloud (Target) | Creative/Ad Format Technology | NAI, DAA, EDAA Europe | go to site |
| Adobe Experience Platform | Data Management Platform, Tag manager, Content management/SaaS, Marketing solutions | IAB, NAI, DAA, IAB Europe | |
| Adobe Marketing Cloud (Analytics) Formerly Site Catalyst HBX | Analytics Provider | ||
| AdOcean | Ad Server | go to site | |
| AdoTube | Ad Network, Video | IAB, DMA, DAA | go to site |
| Adperium | Ad Network | DMA | go to site |
| AdPilot | Ad Network, Retargeter | go to site | |
| ADPLUS | Ad Network, Mobile | ||
| AdPredictive | Data Management Platform | go to site | |
| AdRetarget | Retargeter | go to site | |
| AdRiver | Ad Network, Ad Server, Video | IAB Europe | go to site |
| Adroit Digital | Demand Side Platform, Data Management Platform | IAB, NAI, DAA, EDAA Europe | go to site |
| Adroute | Other | go to site | |
| Adrule | Analytics Provider, Optimizer, Retargeter, Mobile, Marketing solutions | IAB | |
| AdSame | Ad Network, Ad Server | go to site | |
| AdsData | Analytics Provider, Content management/SaaS | go to site | |
| ADSKOM | Supply Side Platform | go to site | |
| AdSniper | Ad Network | go to site | |
| AdSpeed | Analytics Provider, Ad Server | ||
| Adspert (Bidmanagement GmbH) | Optimizer, Retargeter, Mobile | go to site | |
| AdSpirit | Ad Server, Mobile | IAB, BVDW Europe | |
| Adssets | Analytics Provider, Ad Server, Mobile, Content management/SaaS, Marketing solutions | MMA | go to site |
| AdStir | Ad Exchange, Supply Side Platform | go to site | |
| AdsWizz | Analytics Provider, Ad Server, Mobile | IAB | go to site |
| Adtarget.me | Retargeter | go to site | |
| Adtelligence | Analytics Provider, Optimizer | ||
| AdTheorent | Ad Network, Ad Server, Mobile | IAB, DMA, MMA | go to site |
| AdTiger | Ad Network | iASH Europe | go to site |
| Adtriba | Analytics Provider, Marketing solutions | go to site | |
| AdUp Technology (Axel Springer Teaser Ad GmbH) | Ad Network | go to site | |
| AdUX | Ad Network, Mobile | EDAA Europe | go to site |
| Advanced Store | Retargeter, Ad Server, Creative/Ad Format Technology, Mobile, Content management/SaaS | IAB, EDAA Europe | go to site |
| Adverline | Ad Network, Mobile | go to site | |
| Adversal | Ad Network | go to site | |
| Advertising.com | Ad Network, Ad Server | IAB, NAI, DAA | |
| AdvertPro | Ad Server | go to site | |
| advmaker | Ad Network | go to site | |
| Advrtas | Analytics Provider, Creative/Ad Format Technology, Mobile | go to site | |
| adyard | Ad Network | EDAA Europe | go to site |
| Adyoulike | Creative/Ad Format Technology, Mobile | go to site | |
| Aedgency | Ad Exchange, Ad Network | go to site | |
| Affectv | Data Aggregator/Supplier, Mobile | IAB Europe, EDAA Europe | go to site |
| Affilinet GmbH | Ad Network | IAB UK, EDAA Europe | |
| AiData | Data Management Platform | ||
| Airtory | Creative/Ad Format Technology, Mobile | go to site | |
| AkaNe | Ad Network, Retargeter | go to site | |
| ALC | Marketing solutions | DMA | go to site |
| All In Views | Demand Side Platform | ||
| Amazon | Advertiser, Publisher, Mobile | IAB, BBB, DAA | go to site |
| Amazon Ad System | Advertiser, Ad Network, Publisher, Mobile | IAB, DMA, DAA | go to site |
| Amazon Ad System UK | Advertiser, Ad Network, Publisher, Mobile | IAB, DAA | go to site |
| Amazon Associates | Retargeter, Mobile | IAB, DAA | go to site |
| Amazon Web Services | Mobile, Content management/SaaS | BBB, DAA | go to site |
| AMoAd | Ad Network, Mobile | ||
| Amobee | Ad Server, Mobile | IAB, TRUSTe | |
| Amobee (Formally Adconion Media Group) | Ad Network | IAB, NAI, iASH Europe, DAA, IAB Europe, EDAA Europe | |
| Annalect | Analytics Provider, Marketing solutions | go to site | |
| AntVoice | Analytics Provider, Ad Server, Creative/Ad Format Technology, Mobile, Business intelligence, Content management/SaaS | go to site | |
| AOL Advertising | Retargeter | IAB, NAI, DAA, EDAA Europe | go to site |
| apartena.metrics | Data Aggregator/Supplier, Tag manager | go to site | |
| Appier | Other | go to site | |
| AppLift | Mobile, Content management/SaaS | go to site | |
| AppNexus | Ad Server, Demand Side Platform, Supply Side Platform, Data Management Platform, Mobile | IAB, NAI, DAA, EDAA Europe | |
| appTV | Ad Network, Video | go to site | |
| APT from Yahoo! | Ad Exchange | NAI, TRUSTe | go to site |
| Arrivalist | Mobile, Marketing solutions | TRUSTe | |
| Art Of Click | Demand Side Platform, Mobile | go to site | |
| Artificial Computation Intelligence | Analytics Provider | ||
| Asia Pacific Network Information Centre (APNIC) | Other | go to site | |
| Assembly (formerly TargetCast) | Agency | go to site | |
| AT Internet | Analytics Provider | go to site | |
| AT&T Adobe Cloud Marketing | Ad Network, Ad Server | go to site | |
| AT&T AdWorks | Ad Network, Data Management Platform | IAB, TRUSTe | go to site |
| Atedra | Ad Network | IAB | |
| ATG Commerce | Data Management Platform | TRUSTe | go to site |
| ATP (Audience Trading Platform) | Analytics Provider, Agency, Data Management Platform, Mobile, Tag manager | go to site | |
| Audible | Advertiser, Publisher | IAB, BBB, DAA | go to site |
| Audience2Media | Ad Network, Retargeter | IAA Europe, EDAA Europe | go to site |
| AudienceInsights | Analytics Provider, Data Aggregator/Supplier | NAI, DAA, EDAA Europe | go to site |
| AudienceProject | Mobile, Marketing solutions | IAB | go to site |
| AudienceTV | Ad Network, Video | go to site | |
| AudienceValue | Marketing solutions | go to site | |
| Audiens | Analytics Provider, Mobile, Marketing solutions | IAB | |
| AuDigent | Data Management Platform | go to site | |
| Auditorius | Ad Exchange | ||
| Automatad | Ad Network | go to site | |
| Automattic | Other, Mobile | ||
| Avocet | Demand Side Platform, Mobile | IAB UK | go to site |
| Azameo | Ad Network, Analytics Provider, Mobile, Marketing solutions | go to site | |
| Baidu | Publisher, Website optimisation | go to site | |
| Balihoo | Agency | IAB, NAI, DAA | go to site |
| BannerConnect | Ad Exchange | iASH Europe, IAB UK, EDAA Europe | |
| Bannerflow | Creative/Ad Format Technology, Mobile | go to site | |
| BannerNow | Analytics Provider, Creative/Ad Format Technology | go to site | |
| Barometric | Analytics Provider | go to site | |
| Bazaarvoice | Analytics Provider, Mobile, Social media, Business intelligence, Marketing solutions | NAI, TRUSTe | |
| Be On (formerly Goviral) | Ad Server, Video | IAB UK | go to site |
| Beeswax | Ad Exchange, Mobile | ||
| BI.Garage | Analytics Provider, Data Management Platform, Business intelligence | ||
| BiddingX | Demand Side Platform | go to site | |
| Bidswitch | Ad Server, Mobile, Video | ||
| BidTellect | Ad Exchange, Mobile | ||
| BidTheatre | Demand Side Platform, Mobile | IAB, DAA | go to site |
| Big Data Exchange | Ad Exchange, Analytics Provider | go to site | |
| BIG Exchange | Data Aggregator/Supplier | go to site | |
| Big Mining | Data Management Platform | go to site | |
| Bild | Publisher | go to site | |
| Bilin | Other | go to site | |
| Bisnode (formerly Esendra) | Website optimisation | go to site | |
| bitly | Analytics Provider | go to site | |
| Bizible | Marketing solutions | TRUSTe | go to site |
| BlueConic | Analytics Provider, Other | go to site | |
| Blueconic | Data Management Platform, Marketing solutions | TRUSTe | go to site |
| Bombora | Mobile, Marketing solutions | NAI | go to site |
| Bowen Craggs | Analytics Provider | go to site | |
| Bradford Exchange | Other | go to site | |
| Brain Data Market | Data Management Platform, Content management/SaaS | go to site | |
| BrainPad | Ad Network, Analytics Provider, Content management/SaaS | go to site | |
| Brand Metrics | Analytics Provider, Mobile | IAB | |
| BrandCrumb | Other | IAB | go to site |
| BridgeTrack | Ad Server, Marketing solutions | IAB | |
| Bridgewell (Scupio) | Ad Network | go to site | |
| BrightRoll | Ad Exchange | IAB, NAI, TRUSTe, DAA, IAB Europe | go to site |
| BSmartData | Ad Server, Data Management Platform, Tag manager | go to site | |
| Butlers | Advertiser | go to site | |
| Bypass | Retargeter, Demand Side Platform | go to site | |
| C3 Metrics | Content management/SaaS | go to site | |
| Captify | Retargeter, Mobile | DAA, IAB Europe, EDAA Europe | |
| Capturly | Website optimisation | go to site | |
| Catalina Marketing | Data Aggregator/Supplier, Data Management Platform | DAA | go to site |
| CBS Interactive | Ad Network, Publisher | IAB, IAB Europe | go to site |
| CDK Digital Marketing | Marketing solutions | IAB, DAA | |
| Centro | Ad Exchange, Demand Side Platform, Mobile | IAB, DAA | go to site |
| Centrois | Publisher | go to site | |
| CerebroAd | Ad Network, Mobile | IAB, EDAA Europe | go to site |
| Chameleon | Ad Network, Optimizer, Mobile | go to site | |
| Chameleon.ad | Ad Exchange, Ad Network, Content management/SaaS | go to site | |
| ChannelSight | Advertiser, Analytics Provider, Mobile | go to site | |
| ChargeAds | Ad Exchange, Mobile | go to site | |
| Chocolate (Formerly Vdopia) | Ad Network, Mobile | go to site | |
| ChoiceStream | Data Aggregator/Supplier | IAB, NAI, DAA | go to site |
| Choozle | Ad Network | NAI | go to site |
| CJ Affiliate by Conversant (formerly Commission Junction) | Ad Network | IAB, NAI, iASH Europe, DAA, IAB Europe, EDAA Europe | go to site |
| Clearstream.TV | Ad Server | TRUSTe | |
| cleverbridge | Marketing solutions | go to site | |
| Clickagy | Analytics Provider | NAI, DAA | go to site |
| ClickDimensions | Marketing solutions | go to site | |
| ClickInText | Ad Network, Retargeter | go to site | |
| Clickpoint | Ad Network, Ad Server, Marketing solutions | go to site | |
| Clicksco | Data Management Platform, Mobile, Marketing solutions | IAB | go to site |
| ClickTale | Analytics Provider | IAB, DMA, NAI, BBB, ANA, AAAA, AAF | go to site |
| Clicky | Analytics Provider | go to site | |
| Cliipa | Other | go to site | |
| Clinch | Creative/Ad Format Technology, Mobile, Content management/SaaS, Video | NAI | |
| Clipcentric | Analytics Provider, Ad Server, Creative/Ad Format Technology, Mobile, Video | IAB | go to site |
| CloudTechnologies | Ad Network, Creative/Ad Format Technology, Mobile | go to site | |
| Cognitiv | Marketing solutions | DAA | |
| CogoCast | Ad Network, Other | go to site | |
| Collective UK (Collective Europe) | Other | go to site | |
| Colombia | Ad Network | go to site | |
| Commanders Act | Optimizer, Content management/SaaS, Marketing solutions | go to site | |
| CommunicationAds | Agency, Mobile | go to site | |
| comScore | Data Aggregator/Supplier, Mobile, Business intelligence | IAB, DMA, OTA | go to site |
| ConnectAd | Ad Network, Mobile | ||
| Connects | Ad Network | go to site | |
| Connexity | Data Aggregator/Supplier, Business intelligence | IAB, DAA | go to site |
| Constant Contact | Data Management Platform | TRUSTe, BBB, OTA | |
| Contact Impact (formerly adrolays) | Ad Network, Ad Server, Marketing solutions | go to site | |
| Content Ignite | Ad Network | go to site | |
| Content Spread | Tag manager | go to site | |
| Content Square | Analytics Provider | go to site | |
| Converlytics | Analytics Provider | go to site | |
| Conversant | Research Provider, Demand Side Platform, Data Aggregator/Supplier, Mobile | IAB, NAI, iASH Europe, DAA, IAB Europe, EDAA Europe | go to site |
| ConversionRuler | Analytics Provider, Data Aggregator/Supplier | go to site | |
| Convert | Analytics Provider, Other | NAI | go to site |
| Convert Insights (formerly Reedge) | Analytics Provider, Website optimisation | NAI | go to site |
| ConvertMedia (formerly Contextin) | Data Management Platform | IAB, DAA | |
| CookieQ (Baycloud Systems) | Online Privacy Platform | go to site | |
| Core Audience (formerly Red Aril) | Data Management Platform | IAB, NAI, DAA, AAAA, EDAA Europe | go to site |
| CPMStar | Ad Network | DAA | |
| CPXi (Corporate) | Ad Network | go to site | |
| Crate & Barrel | Publisher, Supply Side Platform | DMA | go to site |
| Creafi | Ad Network | go to site | |
| Credebat | Data Management Platform | ||
| Crimtan | Mobile, Marketing solutions | IAB, iASH Europe, EDAA Europe | go to site |
| Crisp Media | Ad Server, Mobile | IAB | go to site |
| Criteo | Ad Network, Retargeter, Ad Server, Mobile | IAB, NAI, TRUSTe, DAA, IAB Europe, EDAA Europe | go to site |
| CRM4D | Content management/SaaS | go to site | |
| Cross Listing | Demand Side Platform | go to site | |
| Cross Pixel | Retargeter, Data Aggregator/Supplier, Data Management Platform | NAI, DAA | go to site |
| Crowd Science | Analytics Provider, Marketing solutions | TRUSTe | |
| Crucial Interactive | Creative/Ad Format Technology, Video | go to site | |
| CTS Eventim ES | Advertiser | go to site | |
| CTS Eventim FR | Advertiser | ||
| Cubed | Content management/SaaS | go to site | |
| Cup Interactive | Other | go to site | |
| Cxense | Data Aggregator/Supplier, Mobile, Content management/SaaS | go to site | |
| D4t4 (formerly Celebrus) | Analytics Provider | go to site | |
| DAC (D.A.Consortium) | Ad Network, Data Management Platform | IAB | go to site |
| DataLab USA | Data Management Platform | DMA | go to site |
| Datalogix | Data Aggregator/Supplier, Data Management Platform | IAB, DMA, NAI, DAA | go to site |
| DataMind | Demand Side Platform | go to site | |
| dataXtrade | Ad Exchange, Data Aggregator/Supplier | go to site | |
| DataXu | Demand Side Platform, Data Management Platform, Mobile | IAB, NAI, BBB, DAA, ANA, AAAA, AAF | |
| Datonics | Data Aggregator/Supplier | NAI, DAA | |
| DaVinci II (FKA Gravity4) | Ad Exchange, Retargeter, Demand Side Platform, Data Management Platform | NAI | go to site |
| DC Storm | Data Aggregator/Supplier | go to site | |
| dealer.com | Advertiser | TRUSTe | |
| Dedicated Media | Ad Network, Marketing solutions | NAI, DAA | go to site |
| Deep Intent | Other, Mobile | DAA, EDAA Europe | go to site |
| Delta Projects | Ad Server, Demand Side Platform, Data Aggregator/Supplier, Mobile | EDAA Europe | go to site |
| DeltaX | Ad Server, Mobile | ||
| Demand Side Science | Demand Side Platform | go to site | |
| Demandbase | Analytics Provider, Data Management Platform, Mobile | ||
| Dentsu Inc. | Agency | AAAA | go to site |
| Departement13 (Formerly CG13) | Publisher | go to site | |
| Deqwas | Ad Server | go to site | |
| Dianomi | Ad Network | go to site | |
| Didit | Analytics Provider, Website optimisation | ||
| Digilant | Ad Exchange, Mobile, Marketing solutions | IAB, DAA, EDAA Europe | go to site |
| Digitize | Ad Network, Mobile | iASH Europe, IAB Europe, EDAA Europe | |
| DigiTrust | Other, Mobile | go to site | |
| Disqus | Publisher, Social media | TRUSTe | go to site |
| Distribute Travel | Ad Network | NAI, DAA, IAB Europe | go to site |
| District M | Ad Network, Mobile | go to site | |
| Division-D | Advertiser | go to site | |
| Divisiond (formerly 3 Interactive) | Ad Network | go to site | |
| DMA Institute (formerly HotTraffic) | Analytics Provider, Mobile | go to site | |
| DotAndMedia | Ad Server, Ad Verification, Data Management Platform | IAB Europe | go to site |
| Dotomi | Retargeter, Demand Side Platform, Data Aggregator/Supplier | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| DoubleClick | Ad Server | NAI, DAA, EDAA Europe | go to site |
| DoubleClick Bid Manager (formerly Invite Media) | Demand Side Platform | IAB, NAI, DAA | go to site |
| Drawbridge | Analytics Provider, Retargeter, Mobile | IAB, TRUSTe | |
| DServe | Ad Server, Mobile | go to site | |
| Dstillery (formerly Media6Degrees) | Demand Side Platform, Data Management Platform | IAB, NAI, TRUSTe, DAA, EDAA Europe | go to site |
| DTscout | Ad Network, Other | go to site | |
| DynAd | Retargeter | go to site | |
| DynAdmic | Ad Exchange, Ad Network, Mobile, Video | go to site | |
| Dynamic Yield | Agency, Website optimisation | go to site | |
| dynamicTracking | Analytics Provider | go to site | |
| e-planning | Ad Server, Creative/Ad Format Technology, Mobile | ||
| Eacnur | Other | ||
| EastBay | Advertiser | BBB | |
| EASYmedia GmbH (formerly Rivity) | Demand Side Platform, Mobile | go to site | |
| eBay | Advertiser, Publisher | IAB, DMA, TRUSTe, ANA | go to site |
| eBay Partner Network | Ad Network | IAB, ANA | go to site |
| ECONA | Other | go to site | |
| Econda | Analytics Provider, Website optimisation | go to site | |
| Eduscho (Tchibo) | Advertiser | go to site | |
| eHealthcare Solutions | Ad Network | go to site | |
| Eloqua (Oracle Marketing Cloud) | Marketing solutions | TRUSTe | go to site |
| EMC | Other, Data Management Platform | TRUSTe | go to site |
| Emediate | Ad Server | EDAA Europe | go to site |
| Emerse | Demand Side Platform, Mobile | DAA, EDAA Europe | go to site |
| emetriq | Ad Network, Mobile | EDAA Europe | go to site |
| EMX Digital | Ad Network, Mobile | IAB, NAI, DAA | go to site |
| Engage BDR | Advertiser, Ad Server | go to site | |
| engage:BDR (Blink New Media) | Ad Network, Ad Server | IAB, BBB | go to site |
| Engine Media | Ad Network, Mobile | NAI, DAA | go to site |
| Eniro | Publisher, Website optimisation | go to site | |
| Ensighten | Analytics Provider, Tag manager | ||
| Epic Combo | Ad Server | go to site | |
| Epom | Ad Server, Mobile | IAB, DMA | go to site |
| EQ Works (formerly Cyberplex) | Demand Side Platform | ||
| Ericsson | Other | go to site | |
| Eskimi | Demand Side Platform, Creative/Ad Format Technology, Data Management Platform, Mobile | go to site | |
| esome | Ad Exchange, Ad Network, Ad Server | go to site | |
| Etarget | Ad Network, Agency, Mobile | go to site | |
| eTracker | Marketing solutions, Website optimisation | go to site | |
| etracker GmbH | Analytics Provider, Website optimisation | go to site | |
| Eulerian Technologies | Analytics Provider, Mobile, Tag manager | go to site | |
| Exactag (formerly Falk Multichannel) | Mobile, Tag manager | ||
| eXelate | Data Aggregator/Supplier, Data Management Platform, Mobile, Business intelligence | IAB, NAI, TRUSTe, DAA, EDAA Europe | go to site |
| Experian Marketing Services | Analytics Provider, Data Aggregator/Supplier, Business intelligence, Marketing solutions | IAB, DMA | |
| Exponential Interactive | Ad Network, Mobile | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Expose Box | Other | ||
| Extole | Social media, Marketing solutions | TRUSTe | go to site |
| Extreme Reach | Ad Server, Video | IAB | go to site |
| Eyeota | Data Aggregator/Supplier, Data Management Platform, Mobile | EDAA Europe | |
| eyereturn marketing | Analytics Provider, Ad Server, Data Management Platform | IAB, NAI, DAA | |
| Eyeview | Demand Side Platform, Marketing solutions, Video | IAB, NAI, DAA | go to site |
| Eywa Media | Other, Mobile | ||
| Ad Network, Publisher, Mobile, Social media | IAB, DMA, TRUSTe | go to site | |
| Facebook Business (formerly Facebook Custom Audience) | Mobile, Social media | IAB, DMA, DAA | go to site |
| Facebook Exchange (FBX) | Ad Exchange | IAB, DMA, DAA | go to site |
| Facebook for Developers (formerly Facebook Connect) | Social media | IAB, DAA, EDAA Europe | go to site |
| Facebook Social Graph | Social media | IAB, DMA, TRUSTe | go to site |
| Facebook Social Plugins | Mobile, Social media | IAB, DMA, TRUSTe, DAA | go to site |
| Fast G8 | Ad Network | go to site | |
| Fiksu | Demand Side Platform, Mobile | IAB | go to site |
| FinanceAds GmbH & Co. KG | Ad Network | go to site | |
| Firefly Video | Ad Network | go to site | |
| Fit Ad | Ad Network, Optimizer, Ad Server | go to site | |
| FlashCounter | Analytics Provider | go to site | |
| Flashtalking | Ad Server, Mobile | IAB, EDAA Europe | go to site |
| Fluct | Supply Side Platform | go to site | |
| Flurry | Ad Network, Analytics Provider, Mobile, Content management/SaaS | IAB | go to site |
| FlxOne | Retargeter, Data Management Platform | go to site | |
| FNAC | Publisher | go to site | |
| FNAC Spectacles | Publisher | go to site | |
| Fonecta | Analytics Provider | EDAA Europe | go to site |
| Fonecta.fi | Marketing solutions | go to site | |
| FreakOut | Demand Side Platform | IAB | go to site |
| Freebit (AdMind) | Ad Network | go to site | |
| Freestar | Ad Network | go to site | |
| Fresh 8 | Advertiser, Data Aggregator/Supplier | ||
| Fringe81 | Analytics Provider, Tag manager | go to site | |
| Full Circle Studies | Business intelligence | BBB | go to site |
| Full Tango | Optimizer, Agency | NAI, DAA, EDAA Europe | go to site |
| FullStory | Analytics Provider, Content management/SaaS | BBB | go to site |
| Gamespot | Publisher | go to site | |
| Gamned | Ad Network, Ad Server, Mobile | IAB, EDAA Europe | go to site |
| Gamut (formerly Cox Digital Solutions) | Ad Exchange, Ad Server, Supply Side Platform | IAB, DMA, NAI, iASH Europe, DAA | go to site |
| Gazprom-Media Digital | Ad Network, Video | go to site | |
| Geenie | Other | go to site | |
| Gemius SA | Analytics Provider, Ad Server, Mobile, Business intelligence | IAB Europe | go to site |
| Geniee | Ad Network | go to site | |
| Genius Monkey | Ad Server, Creative/Ad Format Technology, Content management/SaaS, Marketing solutions | IAB | go to site |
| GetBlue | Retargeter, Creative/Ad Format Technology, Mobile | go to site | |
| GetIntent | Demand Side Platform, Mobile | go to site | |
| GfK Group | Business intelligence | IAB | |
| Giant Media | Ad Server | go to site | |
| Gigya | Analytics Provider, Social media, Marketing solutions | go to site | |
| Gilt | Other | go to site | |
| Global Web Index | Analytics Provider, Agency, Mobile | IAB | go to site |
| GlobalWide Media | Agency, Mobile | go to site | |
| Glomex | Video | go to site | |
| GO.PL | Content management/SaaS, Marketing solutions | go to site | |
| Golden Bees | Analytics Provider, Supply Side Platform, Creative/Ad Format Technology, Mobile | IAB | |
| Google Ad Services | Ad Network, Other, Mobile | go to site | |
| Google AdWords | Ad Server | IAB, DMA, NAI, DAA, AAF, IAB Europe, IAB UK, EDAA Europe | go to site |
| Google Analytics | Analytics Provider, Mobile | IAB, DMA, NAI, DAA, AAF, IAB Europe, IAB UK, EDAA Europe | go to site |
| Google Attribution 360 (formerly Adometry) | Analytics Provider, Ad Verification | IAB, AAAA | go to site |
| Google Display Network | Retargeter, Mobile | IAB, DMA, NAI, DAA, AAF, IAB Europe, IAB UK, EDAA Europe | go to site |
| Google Inc. | Ad Network, Analytics Provider, Publisher, Mobile | IAB, DMA, NAI, DAA, AAF, IAB Europe, IAB UK, EDAA Europe | go to site |
| Google Translate | Other | IAB, DMA, NAI, DAA, AAF, IAB Europe, IAB UK, EDAA Europe | go to site |
| Graphinium | Content management/SaaS | go to site | |
| Gravity | Analytics Provider | IAB | go to site |
| Green & Red Technologies | Ad Network, Mobile | go to site | |
| GroovinAds | Ad Server | ||
| GroundTruth | Ad Network, Mobile | IAB, BBB | |
| GroupM | Agency, Mobile | DAA, AAAA, IAB Europe, EDAA Europe | |
| Groupon | Advertiser, Publisher | TRUSTe | go to site |
| GumGum | Ad Network, Creative/Ad Format Technology, Mobile | IAB, NAI | go to site |
| Gunosy | Advertiser, Publisher | go to site | |
| Happyfication | Business intelligence | go to site | |
| Harren Media | Marketing solutions | IAB | go to site |
| Healthy Offers Inc. | Publisher | go to site | |
| Heatmap | Analytics Provider, Marketing solutions | go to site | |
| Herolens | Creative/Ad Format Technology, Content management/SaaS | ||
| HIRO Media | Ad Server, Mobile, Video | IAB | go to site |
| Histats | Analytics Provider | go to site | |
| HockeyApp | Analytics Provider, Mobile | go to site | |
| Hotjar | Analytics Provider | go to site | |
| Housing.com | Other | go to site | |
| HQ GmbH | Ad Server, Content management/SaaS | ||
| HubDSP | Demand Side Platform | ||
| Hupso | Other | go to site | |
| hybrid.ai | Optimizer, Mobile | go to site | |
| i-mobile | Ad Network, Mobile | go to site | |
| iBILLBOARD | Ad Server, Mobile | go to site | |
| IBM | Advertiser | DMA, NAI, TRUSTe, ANA | go to site |
| iClick Interactive | Demand Side Platform, Marketing solutions | ||
| Ignition AI | Analytics Provider, Data Aggregator/Supplier, Mobile | DMA, IAB UK | go to site |
| IgnitionOne | Retargeter, Demand Side Platform, Data Management Platform, Mobile | IAB, NAI, BBB, DAA, IAB UK, EDAA Europe | go to site |
| IHS Markit Digital | Adhesion | Content management/SaaS, Marketing solutions | IAB, NAI, DAA | go to site |
| Imfernsehen GmbH | Ad Network | go to site | |
| IMM | Agency | go to site | |
| Impression Desk | Agency, Demand Side Platform, Mobile | IAB Europe, IAB UK, EDAA Europe | go to site |
| Improve Digital | Supply Side Platform, Mobile | IAB, BVDW Europe, EDAA Europe | |
| Indeed | Ad Network, Publisher | ||
| Index Exchange | Ad Exchange, Supply Side Platform | go to site | |
| Index Exchange (Formerly Casale Media) | Ad Exchange, Supply Side Platform, Mobile | IAB, NAI, DAA | go to site |
| Index Exchange by Casale Media | Ad Exchange, Supply Side Platform | IAB, NAI, TRUSTe, DAA | go to site |
| IndustryBrains | Ad Network | NAI | go to site |
| Infectious Media | Ad Exchange, Creative/Ad Format Technology, Content management/SaaS | go to site | |
| Infernotions | Analytics Provider, Business intelligence | ||
| Inflection Point Media | Ad Network, Retargeter, Ad Server | IAB, DMA, NAI, DAA, AAF | |
| INFOnline | Analytics Provider, Mobile | go to site | |
| InMobi | Ad Network, Mobile | IAB, IAB UK, MMA | go to site |
| Innity | Ad Network, Ad Server, Mobile | IAB | go to site |
| Innovid | Ad Server, Mobile, Video | IAB, NAI | go to site |
| InSkin Media | Creative/Ad Format Technology, Mobile | IAB UK | go to site |
| Instinctive | Optimizer, Other, Mobile | ||
| intelliAd | Content management/SaaS, Website optimisation | IAB Europe, BVDW Europe | go to site |
| Intelligent Reach | Content management/SaaS | ||
| Intent IQ | Ad Server, Mobile | ||
| Intent Media | Ad Network, Analytics Provider, Mobile | NAI, EDAA Europe | go to site |
| Intertrust | Other, Mobile, Business intelligence | DAA | go to site |
| Intimate Merger | Demand Side Platform, Data Aggregator/Supplier, Mobile | ||
| Inuvo | Ad Network | go to site | |
| Inuvo (formerly NetSeer) | Website optimisation | IAB, NAI | go to site |
| Invoca | Marketing solutions | TRUSTe | go to site |
| Iotec | Analytics Provider, Mobile | IAB, BVDW Europe, EDAA Europe | |
| IP Germany GmbH | Ad Network | EDAA Europe | go to site |
| IPONWEB | Ad Exchange, Demand Side Platform, Supply Side Platform, Mobile | ||
| Iprom | Ad Server, Marketing solutions | IAB Europe | go to site |
| iPromote | Ad Network, Ad Server, Mobile | DAA | |
| iSocket | Other | IAB | go to site |
| iSpot.TV | Mobile, Marketing solutions | go to site | |
| Jaduda | Optimizer, Retargeter, Demand Side Platform, Data Management Platform, Mobile, Content management/SaaS | IAB Europe, EDAA Europe | go to site |
| Jetpack Digital | Supply Side Platform | go to site | |
| Jivox | Ad Server, Demand Side Platform, Mobile | IAB | go to site |
| JOIN | Agency, Demand Side Platform, Mobile | IAB | go to site |
| JSE Coin | Analytics Provider, Other | go to site | |
| Jumplead | Marketing solutions | go to site | |
| JW Player | Ad Server, Video | go to site | |
| Kadam Online Advertising Service | Ad Exchange | go to site | |
| Kairion | Ad Network, Ad Server | go to site | |
| Kameleoon | Other, Content management/SaaS | go to site | |
| Kantar Media | Analytics Provider, Mobile, Business intelligence | IAB, IAB Europe | go to site |
| Kargo | Ad Network, Mobile | IAB | go to site |
| Kavanga | Ad Network | go to site | |
| Kayak | Advertiser, Publisher | go to site | |
| KBM Group | Data Management Platform | DAA | go to site |
| Kepler Group | Ad Network | go to site | |
| Keyade | Agency | go to site | |
| Keymantics | Analytics Provider, Retargeter, Ad Server, Mobile | IAB | go to site |
| Kissmetrics | Analytics Provider, Mobile | TRUSTe | go to site |
| Knorex | Other, Agency, Ad Server, Mobile, Marketing solutions | IAB, DAA, EDAA Europe | go to site |
| Knotch | Business intelligence | go to site | |
| Kontera Technologies | Ad Network | IAB, NAI, DAA, EDAA Europe | |
| Kortx | Data Management Platform, Marketing solutions | go to site | |
| Kuaizi Tech | Creative/Ad Format Technology | go to site | |
| Kupona Media | Retargeter, Mobile, Marketing solutions | go to site | |
| Kwanko | Optimizer, Marketing solutions | IAB Europe | go to site |
| Kyocera Communication Systems Co. (Kanade) | Ad Network, Analytics Provider, Demand Side Platform | ||
| LCX Digital | Agency | go to site | |
| Le Groupe La Poste | Other | go to site | |
| Leading Reports | Analytics Provider, Agency, Content management/SaaS | go to site | |
| LeadInspector | Other | ||
| Leiki | Mobile, Website optimisation | IAB, EDAA Europe | go to site |
| LifeSight | Analytics Provider, Mobile | IAB, MMA | go to site |
| LifeStreet Media | Ad Network, Mobile, Social media | ||
| Ligatus | Ad Network, Mobile | EDAA Europe | |
| Light Reaction | Analytics Provider, Optimizer | go to site | |
| Limk | Content management/SaaS | ||
| LinkConnector | Ad Network | DMA | go to site |
| Social media | IAB, NAI, TRUSTe, DAA, IAB UK, EDAA Europe | go to site | |
| LinkedIn Marketing Solutions | Ad Network | IAB, DMA, NAI, TRUSTe, DAA, IAB UK, EDAA Europe | go to site |
| Linkwise | Marketing solutions | go to site | |
| ListenLoop | Retargeter, Ad Server, Creative/Ad Format Technology | go to site | |
| LiveIntent | Ad Server, Data Aggregator/Supplier, Mobile | IAB, DAA | |
| Lively Impact | Analytics Provider, Content management/SaaS | go to site | |
| LiveRamp | Data Aggregator/Supplier, Data Management Platform, Mobile | IAB, DMA, DAA | go to site |
| LKQD | Publisher, Mobile | go to site | |
| Lodeo.io | Ad Network, Mobile | go to site | |
| Logicad | Demand Side Platform | go to site | |
| logly | Demand Side Platform | ||
| Longboard Media | Ad Network | go to site | |
| Loop Me | Ad Server, Mobile | go to site | |
| Lotame | Data Management Platform, Mobile | IAB, DMA, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Luc.id | Ad Server, Data Management Platform, Mobile | ||
| LucidMedia | Ad Network | IAB, NAI, DAA, EDAA Europe | go to site |
| Lucky Orange | Analytics Provider | go to site | |
| m-pathy | Data Aggregator/Supplier | go to site | |
| M. P. New Media GmbH | Ad Network | ||
| Macromill | Research Provider, Data Aggregator/Supplier | go to site | |
| MADNET | Other | go to site | |
| Magnetic | Retargeter, Data Aggregator/Supplier, Mobile | IAB, NAI, DAA | go to site |
| mainADV (MainAd) | Research Provider, Retargeter, Mobile | IAB | go to site |
| Maist | Ad Exchange, Ad Network | go to site | |
| Mapp | Ad Network, Data Management Platform | go to site | |
| Marchex | Ad Network, Analytics Provider, Mobile | IAB | |
| Marin Software | Analytics Provider, Data Management Platform, Website optimisation | NAI, DAA | go to site |
| Market Ruler | Analytics Provider | go to site | |
| Marketgid RU | Advertiser, Ad Server | IAB | go to site |
| MarketGid USA | Ad Network | IAB | go to site |
| Markit on Demand | Ad Server, Content management/SaaS | IAB, NAI, DAA | go to site |
| Mastercard | Advertiser | ANA, AAF | go to site |
| Masterpass by Mastercard | Other | ||
| Matiro | Demand Side Platform | go to site | |
| Matomo (Formerly PiWiK Analytics) | Analytics Provider | go to site | |
| Maverick | Ad Network, Mobile | go to site | |
| MaxPoint Interactive | Analytics Provider, Ad Server | IAB, NAI, DAA | |
| Maxymiser | Website optimisation | TRUSTe | go to site |
| mbr targeting | Data Management Platform, Mobile | ||
| MBuy (formerly AdBuyer) | Demand Side Platform | go to site | |
| Media IQ | Ad Network | IAB, EDAA Europe | |
| Media Network ADLABS | Ad Network | go to site | |
| media.net | Retargeter, Mobile | NAI, DAA | go to site |
| MediaCrossing | Demand Side Platform | IAB, DAA, AAAA | go to site |
| Mediaglu (formerly MLN Advertising) | Data Aggregator/Supplier | NAI | go to site |
| MediaLab | Analytics Provider, Marketing solutions | go to site | |
| MediaLead | Ad Network, Optimizer, Creative/Ad Format Technology | go to site | |
| MediaMath | Retargeter, Demand Side Platform, Data Aggregator/Supplier, Data Management Platform, Mobile | IAB, DMA, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Mediametrie | Business intelligence | go to site | |
| MediaNet by Casale Media | Ad Network | IAB, NAI, TRUSTe, DAA | go to site |
| Mediaocean | Agency | go to site | |
| mediaplex | Ad Server | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| MediaPost Communications | Ad Network | go to site | |
| Mediarithmics | Analytics Provider, Data Management Platform, Mobile, Marketing solutions | go to site | |
| mediascale | Optimizer, Ad Server, Mobile | go to site | |
| Mediasmart Mobile | Optimizer, Retargeter, Creative/Ad Format Technology, Mobile, Marketing solutions | go to site | |
| MediaWallah | Retargeter, Website optimisation | go to site | |
| Merkle | Content management/SaaS, Marketing solutions | IAB, DMA | go to site |
| Metapeople | Marketing solutions | go to site | |
| Meteora | Retargeter | go to site | |
| Miaozhen | Data Aggregator/Supplier | go to site | |
| Miaozhen Systems | Marketing solutions | go to site | |
| MicroAd | Ad Network, Retargeter | go to site | |
| Microsoft | Advertiser, Publisher | IAB, NAI, TRUSTe, DAA, ANA, AAF, OTA, EDAA Europe | |
| Microsoft Advertising | Ad Exchange, Ad Server | IAB, NAI, TRUSTe, iASH Europe, DAA, ANA, AAF, OTA, IAB Europe, EDAA Europe | |
| Microsoft Bing Ads (formerly Microsoft adCenter) | Ad Network | NAI, TRUSTe, DAA, EDAA Europe | go to site |
| Microsoft Media Network | Ad Network | NAI, TRUSTe, DAA, EDAA Europe | |
| MIQ Trace | Ad Network | NAI, EDAA Europe | |
| Mirando | Ad Network, Ad Server, Mobile | go to site | |
| Mixcloud | Social media, Content management/SaaS | go to site | |
| Mixpanel | Analytics Provider, Mobile | go to site | |
| Mixpo | Video | IAB, NAI | |
| mobile.de GmbH | Advertiser, Publisher | go to site | |
| Moguldom | Publisher | go to site | |
| Mouseflow | Analytics Provider | NAI | go to site |
| MouseStats | Analytics Provider | go to site | |
| mPlatform | Agency, Mobile | go to site | |
| MSN (Microsoft) | Ad Network, Publisher, Ad Server | TRUSTe, DAA, EDAA Europe | go to site |
| My Traffic | Analytics Provider | go to site | |
| Myntelligence | Analytics Provider, Data Aggregator/Supplier, Mobile | IAB, EDAA Europe | go to site |
| N.Rich | Ad Server, Mobile | go to site | |
| Nanigans | Demand Side Platform, Social media | IAB | go to site |
| Nano Interactive | Ad Network, Mobile | IAB, EDAA Europe | go to site |
| narratiive | Analytics Provider, Mobile | IAB Europe | go to site |
| Narrative.io | Data Aggregator/Supplier | go to site | |
| Native Ads | Ad Network, Ad Server | go to site | |
| Nativo | Ad Exchange, Ad Network, Ad Server, Supply Side Platform, Mobile | IAB, NAI, DAA, OPA Europe, MMA | |
| Navegg | Analytics Provider, Data Aggregator/Supplier | IAB | |
| nend | Ad Network | go to site | |
| Neodata | Ad Server, Data Management Platform, Mobile | IAB Europe, EDAA Europe | go to site |
| Neory (formerly Target Performance) | Ad Network, Ad Server, Mobile | go to site | |
| Net Avenir | Agency | go to site | |
| NetAffiliation | Ad Network, Marketing solutions | IAB Europe | go to site |
| Netbiscuits | Analytics Provider, Data Aggregator/Supplier | go to site | |
| Netflix | Other | ||
| Netmining | Ad Network | IAB, NAI, DAA, EDAA Europe, MMA | |
| Netsprint Audience | Data Aggregator/Supplier, Data Management Platform | go to site | |
| neuralone | Advertiser, Mobile | go to site | |
| Neustar | Ad Network, Mobile | go to site | |
| Neustar AdAdvisor | Analytics Provider, Business intelligence | NAI, TRUSTe, DAA, EDAA Europe | |
| Neustar Marketing (Formerly PlatformOne) | Data Aggregator/Supplier, Data Management Platform | NAI, TRUSTe, DAA, EDAA Europe | |
| News IQ | Content management/SaaS | go to site | |
| nex8 | Retargeter | go to site | |
| NextRoll, Inc | Retargeter, Mobile | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Nielsen | Data Aggregator/Supplier, Mobile, Business intelligence | IAB, DMA, BBB, ANA, AAAA, AAF, IAB Europe, IAB UK | |
| Nielsen Video Analytics | Analytics Provider, Data Aggregator/Supplier, Mobile, Video | IAB, DMA, BBB, ANA, AAAA, AAF, IAB Europe, IAB UK | go to site |
| NP6 (formerly Ezakus) | Research Provider, Data Management Platform, Content management/SaaS, Marketing solutions | EDAA Europe | go to site |
| NTT DoCoMo | Publisher | go to site | |
| Nugg.ad | Mobile, Marketing solutions | BVDW Europe, IAB UK, EDAA Europe | |
| Numberly | Data Management Platform | go to site | |
| Oath | Ad Exchange, Ad Network, Other, Publisher, Ad Server, Mobile, Business intelligence | IAB, NAI, DAA, EDAA Europe | go to site |
| Oath Ad Server (Formerly One by AOL) | Ad Server | IAB, NAI, DAA | go to site |
| Ogury | Ad Server, Mobile | IAB, MMA | go to site |
| OK Cupid | Ad Network, Publisher, Mobile | NAI, DAA | |
| One by AOL | Demand Side Platform, Data Management Platform | IAB, NAI, DAA | go to site |
| OneMarket (Formerly 12 Digit Marketing) | Marketing solutions | go to site | |
| OnePlanetOnly | Ad Exchange, Ad Server | ||
| OneSpot | Retargeter, Creative/Ad Format Technology | ||
| OneTag | Ad Exchange, Analytics Provider, Ad Verification, Creative/Ad Format Technology, Mobile | IAB | go to site |
| OneTrust | Analytics Provider, Other | go to site | |
| Onnetwork.tv | Ad Network, Creative/Ad Format Technology, Mobile, Video | IAB | |
| OpenX | Ad Exchange, Ad Server, Supply Side Platform, Mobile | IAB, DAA, EDAA Europe | go to site |
| OpenX Lift (formerly LiftDNA) | Supply Side Platform | go to site | |
| Opinary | Analytics Provider, Mobile, Marketing solutions | go to site | |
| OpinionAds | Creative/Ad Format Technology, Mobile, Content management/SaaS | go to site | |
| OPT | Agency | go to site | |
| Optimax Media Delivery | Ad Server | go to site | |
| Optimise Media | Ad Network | ||
| Optimizely | Optimizer, Mobile | TRUSTe | go to site |
| OPTOMATON | Demand Side Platform, Mobile | ||
| Oracle Corporation | Mobile, Content management/SaaS, Marketing solutions | TRUSTe | go to site |
| Oracle Data Cloud | Data Aggregator/Supplier, Data Management Platform | IAB, DMA, NAI, TRUSTe, DAA, EDAA Europe | |
| Ortec AdScience | Demand Side Platform, Mobile | IAB Europe | go to site |
| Outbrain | Ad Network, Other, Ad Server, Mobile | IAB, TRUSTe, DAA | go to site |
| OwnerIQ | Data Aggregator/Supplier | IAB, NAI, DAA | go to site |
| ownerIQ | Data Aggregator/Supplier, Marketing solutions | IAB, NAI, DAA | go to site |
| OxaMedia | Ad Network | go to site | |
| Parrable | Mobile, Content management/SaaS | NAI | go to site |
| Parse.ly | Data Management Platform, Content management/SaaS | ||
| Parsec Media | Analytics Provider, Ad Server, Creative/Ad Format Technology, Mobile | IAB | go to site |
| Parsley | Analytics Provider | go to site | |
| Pathmatics | Optimizer | go to site | |
| PayClick | Ad Network, Agency | go to site | |
| PayPerSale | Data Aggregator/Supplier, Mobile, Marketing solutions | go to site | |
| Pebble Post | Analytics Provider | go to site | |
| Peer39 | Data Aggregator/Supplier | IAB, NAI, TRUSTe, DAA, EDAA Europe | go to site |
| Perfect Audience | Retargeter | ||
| Perfect Market | Optimizer, Website optimisation | go to site | |
| Performance Advertising | Ad Network | EDAA Europe | go to site |
| Performance Media | Agency | go to site | |
| Permodo | Creative/Ad Format Technology, Mobile | go to site | |
| Photobucket | Other, Mobile | go to site | |
| Phunware (formerly TapIt!) | Creative/Ad Format Technology, Mobile | go to site | |
| Mobile, Social media | go to site | ||
| Piximedia | Agency, Mobile | IAB Europe | go to site |
| Placed | Analytics Provider | go to site | |
| Platform One (yieldone) | Ad Network | go to site | |
| Platform161 | Ad Network, Data Management Platform, Mobile | IAB, EDAA Europe | |
| Plista | Ad Network, Mobile | ||
| PLYmedia | Other | go to site | |
| Pocket (formerly Read It Later) | Other, Mobile | go to site | |
| Pollster Research Institute (Accorp Sp. z o.o.) | Research Provider, Mobile | IAB | go to site |
| popIn | Mobile, Content management/SaaS | go to site | |
| PowerLinks | Ad Network, Ad Server, Mobile | go to site | |
| Primis (Fomerly SekiNdo) | Ad Network, Mobile, Video | ||
| Proclivity Media | Analytics Provider, Demand Side Platform | DMA, NAI, DAA | |
| Programattik | Other | AAF, EDAA Europe | go to site |
| Programmatic Mechanics | Ad Network | go to site | |
| Proofpoint | Other, Content management/SaaS | TRUSTe | go to site |
| Propeller Ads | Ad Network, Ad Server | go to site | |
| Publicis Groupe | Agency | go to site | |
| Publicis Media | Other, Agency, Mobile | EDAA Europe | |
| PubMatic | Ad Exchange, Supply Side Platform, Mobile | IAB, NAI, DAA, OPA Europe, BVDW Europe, IAB UK | |
| PulPix | Creative/Ad Format Technology, Video | go to site | |
| Pulpo Media | Ad Network | go to site | |
| Pulsepoint Ad Exchange | Ad Exchange, Supply Side Platform | IAB, NAI, DAA, EDAA Europe | go to site |
| Pulsepoint Audience | Ad Exchange, Data Management Platform, Mobile | NAI | go to site |
| Pure Cobalt | Agency, Creative/Ad Format Technology, Mobile, Content management/SaaS, Website optimisation | go to site | |
| PushSpring | Data Aggregator/Supplier | IAB, NAI, DAA | go to site |
| Q Division | Data Aggregator/Supplier | go to site | |
| Qualia (fka BlueCava) | Data Aggregator/Supplier, Mobile | IAB, NAI, DAA | go to site |
| Quantcast | Retargeter, Data Aggregator/Supplier, Mobile, Business intelligence | IAB, TRUSTe, DAA, IAB Europe, EDAA Europe | go to site |
| QuarticON | Retargeter, Marketing solutions | go to site | |
| Quple.io | Demand Side Platform, Mobile | go to site | |
| Rackspace | Other | TRUSTe | |
| RadiumOne | Demand Side Platform, Data Aggregator/Supplier, Data Management Platform, Social media | IAB, NAI, TRUSTe, DAA, IAB Europe, EDAA Europe | go to site |
| Rakuten Display (formerly Rakuten MediaForge) | Retargeter | NAI, DAA | go to site |
| Rakuten Group | Advertiser | go to site | |
| Rakuten Marketing | Advertiser, Mobile, Marketing solutions | go to site | |
| Realmedia | Ad Network | go to site | |
| Realytics | Ad Network, Analytics Provider | go to site | |
| RealZeit | Mobile, Marketing solutions | go to site | |
| ReAmp | Ad Server | IAB | go to site |
| Recognified | Ad Network, Ad Server, Creative/Ad Format Technology | go to site | |
| Recruit | Other | go to site | |
| Recruit Ad Network (Recruit Holdings, Inc.) | Ad Network, Data Aggregator/Supplier | go to site | |
| Recruitics | Marketing solutions | BBB, DAA | go to site |
| Redirect.com | Ad Exchange | go to site | |
| Reemo | Analytics Provider, Ad Server | go to site | |
| REES46 Technologies | Retargeter, Mobile, Content management/SaaS | ||
| Refined Labs | Website optimisation | go to site | |
| Reignn | Optimizer, Mobile | go to site | |
| Reklam Store | Ad Exchange, Ad Network | IAB | |
| Relestar | Ad Exchange | NAI | go to site |
| Republer | Other | go to site | |
| Responsys | Agency, Marketing solutions | TRUSTe | go to site |
| Retail 9 Ventures | Advertiser, Publisher, Supply Side Platform | go to site | |
| Retail Rocket | Optimizer | go to site | |
| Retailerweb | Marketing solutions | go to site | |
| ReTargeter | Retargeter | BBB | go to site |
| Retargetly | Retargeter | NAI | go to site |
| RevContent | Mobile, Content management/SaaS | go to site | |
| RevJet | Ad Server, Marketing solutions | IAB | go to site |
| Rich Audience | Mobile, Content management/SaaS, Marketing solutions | go to site | |
| Rich Media Studio | Creative/Ad Format Technology, Content management/SaaS | go to site | |
| RichRelevance | Marketing solutions | IAB, NAI, TRUSTe, DAA | go to site |
| Ritorno | Ad Network | go to site | |
| Rockerbox | Agency, Mobile | go to site | |
| Rollad | Demand Side Platform | go to site | |
| Roq.ad | Retargeter, Mobile, Business intelligence | go to site | |
| Roy Morgan Research | Business intelligence | go to site | |
| RSA | Analytics Provider, Other | NAI, TRUSTe, DAA | go to site |
| RTB House | Retargeter, Mobile | go to site | |
| Rtoaster | Analytics Provider | go to site | |
| Rubicon Project | Ad Exchange, Demand Side Platform, Supply Side Platform, Mobile | IAB, NAI, DAA, OPA Europe, EDAA Europe | go to site |
| Rubicon Project (formerly FOX Audience Network) | Ad Network, Publisher, Ad Server | IAB, NAI, iASH Europe, DAA, Digital Content Next | go to site |
| RUN | Demand Side Platform, Data Management Platform, Mobile | IAB, NAI, DAA | |
| Run Inc. | Advertiser | go to site | |
| RythmOne | Advertiser, Ad Network, Retargeter, Ad Server, Mobile, Content management/SaaS | IAB, NAI, TRUSTe, DAA, EDAA Europe | go to site |
| Salesforce DMP (Formerly Krux Digital) | Data Aggregator/Supplier, Data Management Platform, Mobile | IAB, NAI, DAA, IAB Europe, EDAA Europe | |
| SalesForce Pardot | Analytics Provider, Marketing solutions | go to site | |
| SalesViewer | Analytics Provider | go to site | |
| Sally Beauty | Publisher | go to site | |
| Samba TV | Advertiser, Analytics Provider, Publisher, Data Aggregator/Supplier, Mobile, Social media, Video | go to site | |
| SAP Web Analytics | Optimizer, Data Management Platform | go to site | |
| Sape | Ad Exchange, Ad Network, Retargeter, Demand Side Platform, Supply Side Platform, Data Management Platform, Content management/SaaS | ||
| Satori | Content management/SaaS, Marketing solutions | go to site | |
| ScaleOut | Tag manager | go to site | |
| Scarab research | Ad Network | go to site | |
| Scene Stealer | Creative/Ad Format Technology, Mobile, Marketing solutions | go to site | |
| Scigineer | Marketing solutions | go to site | |
| Scoota | Ad Network, Mobile | ||
| Scoota (formerly Rockabox) | Content management/SaaS, Video | go to site | |
| Scorecard Research | Analytics Provider | go to site | |
| Screen On Demand | Demand Side Platform | go to site | |
| SearchIgnite | Analytics Provider, Website optimisation | NAI | go to site |
| SecuredVisit | Marketing solutions | go to site | |
| Seeding Alliance | Other, Mobile | go to site | |
| Segmint | Marketing solutions | ||
| Sellpoints | Mobile, Marketing solutions | go to site | |
| Semasio | Data Aggregator/Supplier, Mobile | EDAA Europe | go to site |
| Sephora FR | Advertiser | IAB Europe, EDAA Europe | go to site |
| SET Media | Agency, Video | go to site | |
| Shareaholic | Social media, Content management/SaaS | ||
| ShareThis | Retargeter, Mobile, Social media | IAB, NAI, BBB, DAA | |
| Sharethrough | Ad Network, Ad Server, Mobile | IAB, MMA | go to site |
| ShinyStat | Analytics Provider, Mobile | DAA, IAB Europe | go to site |
| ShopBack | Content management/SaaS | go to site | |
| Shopzilla | Advertiser, Publisher | ||
| Sift Media | Ad Exchange, Analytics Provider, Optimizer, Data Aggregator/Supplier, Mobile | go to site | |
| Signal (formerly BrightTag) | Mobile, Tag manager | IAB, DAA | go to site |
| Simplaex | Retargeter, Mobile, Content management/SaaS, Marketing solutions | ||
| Simpli.fi | Demand Side Platform, Mobile | IAB, NAI, TRUSTe | go to site |
| Sirdata | Ad Network, Mobile | ||
| SiteScout | Ad Server, Demand Side Platform | IAB, DAA | |
| Sizmek | Ad Server, Demand Side Platform, Mobile | IAB, NAI, DAA, AAF, EDAA Europe | go to site |
| SkimLinks | Creative/Ad Format Technology, Mobile | go to site | |
| Skype | Other | go to site | |
| Slashdot | Publisher | go to site | |
| SlimCutMedia | Ad Network, Mobile, Video | IAB | go to site |
| Smarketing Cloud | Data Management Platform, Content management/SaaS, Marketing solutions | IAB, NAI, DAA | go to site |
| Smart AdServer | Ad Server, Supply Side Platform, Mobile | IAB, EDAA Europe | go to site |
| Smart Canvas | Ad Server | IAB | |
| Smart.Bid | Analytics Provider, Creative/Ad Format Technology, Content management/SaaS, Marketing solutions | go to site | |
| smartclip | Ad Network, Mobile | IAB | |
| SmarterTravel | Advertiser, Publisher | go to site | |
| SmartLook | Agency | go to site | |
| Smartstream.tv | Creative/Ad Format Technology, Mobile, Video | go to site | |
| Snoobi Oy | Analytics Provider | ||
| So-net Media Networks | Analytics Provider, Demand Side Platform, Ad Verification, Marketing solutions | go to site | |
| Sociomantic Labs GmbH | Retargeter, Mobile, Marketing solutions | IAB, EDAA Europe | go to site |
| Solocal Group | Ad Network, Other, Mobile | go to site | |
| SoLocal Group UK (ADhesive) | Retargeter, Data Management Platform | go to site | |
| Solve Media | Creative/Ad Format Technology | go to site | |
| SoMo Audience | Ad Network, Mobile | go to site | |
| Sophus3 | Analytics Provider | go to site | |
| Space | Retargeter, Ad Server, Demand Side Platform, Ad Verification | ||
| Specific Media | Ad Network | IAB, NAI, TRUSTe, iASH Europe, DAA, IAB Europe, EDAA Europe | go to site |
| Speed Shift Media | Retargeter | IAB, DAA | |
| Splicky | Demand Side Platform, Mobile, Content management/SaaS | go to site | |
| Sport1 | Publisher | DAA | go to site |
| SpotXchange | Ad Exchange, Ad Server, Supply Side Platform, Mobile | IAB, DAA, IAB Europe | |
| SpringServe (fka PubSquared) | Optimizer, Ad Server, Supply Side Platform, Mobile, Video | NAI, DAA | |
| Squeezely | Data Management Platform | ||
| StackAdapt | Advertiser, Mobile | IAB | go to site |
| Stailamedia AG | Ad Network, Video | EDAA Europe | go to site |
| Stat Shop | Marketing solutions | go to site | |
| SteelHouse | Analytics Provider, Retargeter, Mobile | NAI, DAA, IAB UK, EDAA Europe | go to site |
| Stirista | Ad Network | go to site | |
| Storygize | Advertiser, Ad Network, Ad Server | go to site | |
| Stroer (formerly adscale) | Ad Exchange, Mobile | ||
| Struq | Retargeter | IAB UK, EDAA Europe | go to site |
| Sublime Skinz | Supply Side Platform, Creative/Ad Format Technology, Mobile, Content management/SaaS | IAB, IAB Europe, OPA Europe, IAB UK, MMA | go to site |
| SubPLY | Other | go to site | |
| Suite 66 | Ad Network | go to site | |
| SundaySky | Creative/Ad Format Technology, Video | go to site | |
| Supership | Agency, Ad Server, Content management/SaaS | go to site | |
| Survata | Analytics Provider | go to site | |
| Swisscom | Ad Network, Publisher, Retargeter, Video | go to site | |
| Symantec (Norton Secured Seal) | Content management/SaaS, Website optimisation | NAI, TRUSTe | go to site |
| Taboola | Retargeter, Mobile, Social media | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Tag Commander | Mobile, Tag manager | go to site | |
| TAGGY | Analytics Provider | ||
| TailTarget | Data Aggregator/Supplier, Data Management Platform, Mobile | IAB | go to site |
| Tanx | Ad Exchange | go to site | |
| Tapad | Analytics Provider, Demand Side Platform, Mobile | IAB, NAI, DAA, IAB Europe, IAB UK, EDAA Europe, MMA | |
| tapCLIQ | Content management/SaaS, Marketing solutions | go to site | |
| Tapklik | Ad Exchange, Ad Network, Optimizer, Mobile, Content management/SaaS | go to site | |
| Tapone | Ad Network | ||
| Tapstream | Mobile | go to site | |
| Targeting360 | Retargeter | go to site | |
| Teads | Supply Side Platform, Mobile, Video | go to site | |
| Tealium | Analytics Provider, Data Management Platform, Mobile, Tag manager | IAB, NAI, DAA | go to site |
| Telstra Advertising Network | Ad Network | EDAA Europe | go to site |
| Temelio | Analytics Provider, Mobile, Content management/SaaS | go to site | |
| TenMax | Ad Exchange, Ad Server, Demand Side Platform, Supply Side Platform, Data Management Platform, Mobile | go to site | |
| TenSquare (Web Wipe Analytics) | Analytics Provider | go to site | |
| TEST Company First Party Cookie Opt | Other | IAB, DMA, NAI, TRUSTe, iASH Europe, BBB, DAA, ANA, AAAA, AAF, OTA, IAB Europe, OPA Europe, WFA Europe, FEDMA Europe, EACA Europe, FAEP Europe, ENPA Europe, EADP Europe, IAG Europe, IAA Europe, EPC Europe, BVDW Europe, IAB UK, EDAA Europe | |
| The ADEX | Data Management Platform, Mobile | IAB Europe, EDAA Europe | go to site |
| The Agency | Demand Side Platform | go to site | |
| The Globe and Mail | Publisher | ||
| The MediaGrid | Ad Exchange, Business intelligence, Content management/SaaS | go to site | |
| The Reach Group (formely redvertisment) | Retargeter, Mobile | go to site | |
| The Trade Desk | Demand Side Platform, Data Aggregator/Supplier, Data Management Platform, Mobile | IAB, DAA, EDAA Europe | go to site |
| theAdx | Demand Side Platform | go to site | |
| THROTLE | Retargeter, Ad Server, Mobile | IAB, NAI | go to site |
| Thunder | Analytics Provider, Agency, Ad Server, Mobile | ||
| top5meilleurssitesderencontre | Publisher | go to site | |
| TouchAds | Retargeter, Demand Side Platform | ||
| TraceMyIP | Analytics Provider | go to site | |
| Trackuity | Analytics Provider | ||
| TradeDoubler | Ad Network, Ad Server, Mobile | IAB | go to site |
| Tradelab | Demand Side Platform, Mobile | IAB, EDAA Europe, MMA | go to site |
| Traffiliate | Website optimisation | ||
| TrafMag | Ad Network | go to site | |
| Travel Data Corporation (formerly Yieldr) | Retargeter, Demand Side Platform, Mobile | IAB, BVDW Europe, EDAA Europe | |
| Traverse Data | Analytics Provider | go to site | |
| Treepodia | Video | go to site | |
| Tremor Video | Ad Network, Video | NAI, DAA | go to site |
| TrenDemon | Optimizer, Other, Social media, Marketing solutions | go to site | |
| Tribal Fusion | Ad Network | IAB, NAI, iASH Europe, DAA, IAB Europe, EDAA Europe | go to site |
| Tribes Research | Analytics Provider | ||
| Triblio | Marketing solutions | go to site | |
| Triboo Media | Advertiser, Publisher, Creative/Ad Format Technology, Data Management Platform, Content management/SaaS | DAA, IAB Europe | go to site |
| TripleLift | Analytics Provider, Creative/Ad Format Technology, Mobile | IAB | go to site |
| TruEffect | Analytics Provider | IAB, NAI, TRUSTe, BBB | |
| TrueWave | Analytics Provider, Retargeter, Marketing solutions | go to site | |
| Truoptik | Ad Server | go to site | |
| TubeMogul | Demand Side Platform | IAB, NAI, DAA, EDAA Europe | go to site |
| Tune MobileAppTracking | Analytics Provider, Mobile | TRUSTe, DAA, EPC Europe | go to site |
| Turbo | Ad Exchange, Mobile | go to site | |
| TurnSocial | Social media | ||
| Twiago | Ad Server, Mobile | go to site | |
| Data Aggregator/Supplier, Mobile, Social media | NAI | go to site | |
| Twyn | Ad Network, Retargeter | IAB Europe, EDAA Europe | go to site |
| UberMedia | Ad Network, Mobile, Social media | IAB | go to site |
| Ubimo | Retargeter, Mobile, Marketing solutions | IAB, DAA, MMA | go to site |
| Uliza | Video | go to site | |
| Ulta | Publisher | ||
| Undertone | Ad Network, Video | NAI, DAA, EDAA Europe | |
| Unicorn | Marketing solutions | go to site | |
| Unilever | Advertiser | IAB | go to site |
| Unilever EU | Advertiser | IAB | go to site |
| Unilever Food Solutions | Publisher | go to site | |
| United Internet Media GmbH | Advertiser | IAB Europe | go to site |
| Unruly | Retargeter, Supply Side Platform, Mobile, Content management/SaaS, Video | IAB, IAB Europe | go to site |
| Uppr | Mobile, Marketing solutions | IAB Europe | go to site |
| UpToLike | Creative/Ad Format Technology, Social media | ||
| Usemax | Ad Network, Mobile | go to site | |
| UserReport | Analytics Provider | go to site | |
| Varick Media Management | Agency, Retargeter, Ad Verification | NAI, TRUSTe, DAA, EDAA Europe | go to site |
| Ve Global | Retargeter | ||
| VE Global (Formely GDM Digital) | Demand Side Platform | DAA, IAB UK, EDAA Europe | |
| Venatus Media | Ad Network, Mobile | ||
| VER | Other, Publisher, Mobile | go to site | |
| Verizon Media | Advertiser, Publisher | DAA, EDAA Europe | go to site |
| Vertoz | Ad Network | go to site | |
| Vi Digital | Marketing solutions | go to site | |
| Viacom | Advertiser, Publisher | IAB, ANA, IAB Europe, IAB UK, Digital Content Next | go to site |
| Viant | Data Aggregator/Supplier | go to site | |
| Vibrant Media | Ad Network, Ad Server, Mobile | IAB, NAI, iASH Europe, DAA, IAB Europe, EDAA Europe | go to site |
| Vidazoo | Analytics Provider | go to site | |
| Video Reach | Retargeter, Ad Server, Mobile | IAB | go to site |
| Video Research Interactive | Analytics Provider | ||
| VideoAmp | Analytics Provider, Mobile, Video | go to site | |
| VideoHub | Ad Network, Ad Server, Video | IAB | go to site |
| Videology (formerly TidalTV) | Demand Side Platform, Mobile | IAB, NAI, DAA, IAB Europe, EDAA Europe | go to site |
| Viewst | Creative/Ad Format Technology, Mobile | go to site | |
| VigLink | Ad Network | go to site | |
| Vindico Group | Ad Server, Video | IAB, DAA | go to site |
| Viralize | Ad Server, Creative/Ad Format Technology, Mobile, Video | IAB | go to site |
| Visa | Advertiser | go to site | |
| Visible Measures | Analytics Provider, Ad Server, Video | go to site | |
| Visual Website Optimizer (Wingify) | Website optimisation | go to site | |
| VisualDNA (Imagini Holdings) | Data Aggregator/Supplier | IAB UK, EDAA Europe | go to site |
| VisualIQ | Analytics Provider, Data Management Platform | ||
| Vizury | Retargeter | ||
| Vlyby Digital | Optimizer, Content management/SaaS | ||
| VoiceFive | Data Aggregator/Supplier, Business intelligence | go to site | |
| Voluum | Demand Side Platform, Mobile | IAB UK | |
| Voxus | Ad Server | go to site | |
| Vpon | Ad Network, Data Management Platform | go to site | |
| VRTCAL | Supply Side Platform, Mobile | go to site | |
| Vserve | Ad Network, Mobile | ||
| Vuble | Analytics Provider, Optimizer, Mobile, Video | ||
| WayFair | Publisher | go to site | |
| WEB2ROI | Ad Network, Marketing solutions | go to site | |
| WebAntenna | Analytics Provider | ||
| Webbula | Data Aggregator/Supplier | DMA | go to site |
| Weborama | Ad Network, Analytics Provider, Mobile | IAB UK, EDAA Europe | go to site |
| Webtrekk | Analytics Provider, Data Management Platform, Marketing solutions | ||
| Webtrends | Analytics Provider, Marketing solutions | IAB, NAI, TRUSTe | |
| whos.amung.us | Analytics Provider | go to site | |
| Wider Planet | Ad Network | go to site | |
| Widespace | Ad Network, Mobile | go to site | |
| WiredMinds | Analytics Provider, Marketing solutions | go to site | |
| WiseMedia | Demand Side Platform | go to site | |
| Wizaly | Mobile, Content management/SaaS | IAB | go to site |
| WysiStat | Analytics Provider | go to site | |
| X Social Group | Ad Network | go to site | |
| Xaxis International | Agency, Demand Side Platform, Data Management Platform, Mobile | IAB, NAI, DAA, IAB Europe, EDAA Europe | |
| XiTi | Analytics Provider | go to site | |
| xplosion interactive | Retargeter | BVDW Europe, EDAA Europe | go to site |
| XPO Knorex | Ad Exchange, Optimizer, Retargeter, Ad Server | IAB | go to site |
| Xrost | Ad Exchange, Data Aggregator/Supplier | ||
| Yabbi | Demand Side Platform | go to site | |
| Yahoo Ad Exchange | Ad Exchange | IAB, NAI, DAA, IAB UK, EDAA Europe | go to site |
| Yahoo! | Ad Network, Publisher | IAB, DMA, NAI, TRUSTe, BBB, DAA, AAF, IAB Europe, EDAA Europe | go to site |
| Yahoo! Ad Network | Ad Network, Publisher, Ad Server, Data Aggregator/Supplier, Marketing solutions | IAB, DMA, NAI, TRUSTe, DAA, AAF, IAB Europe, EDAA Europe | go to site |
| Yahoo! Advertising Solutions | Retargeter, Creative/Ad Format Technology | IAB, DMA, NAI, TRUSTe, DAA, AAF, IAB Europe | go to site |
| Yahoo! Japan | Ad Network, Publisher | go to site | |
| Yahoo! Web Analytics | Analytics Provider | NAI, DAA, EDAA Europe | go to site |
| Yieldbot | Analytics Provider | go to site | |
| Yieldlab | Supply Side Platform, Mobile | ||
| Yieldmo | Ad Network, Mobile | go to site | |
| YOC Group | Ad Network, Ad Server, Mobile | IAB Europe | |
| Yoose | Analytics Provider, Mobile | go to site | |
| YouTube | Publisher, Video | IAB | go to site |
| YuMe | Ad Network, Ad Server, Video | NAI, DAA | |
| Zapr | Analytics Provider, Mobile, Marketing solutions | go to site | |
| ZeBestOf | Agency, Mobile | IAB | go to site |
| Zedo | Ad Network, Retargeter, Ad Server | IAB, NAI | go to site |
| Zemanta | Data Management Platform, Mobile, Content management/SaaS | ||
| ZergNet | Mobile, Content management/SaaS | go to site | |
| Ziff Davis | Ad Network, Publisher, Demand Side Platform, Mobile | TRUSTe, DAA, EDAA Europe | go to site |
| Ziggo | Publisher | go to site | |
| Zipline DMP | Data Management Platform | IAB, DMA, NAI | |
| Zontera | Ad Server | go to site | |
| Zucks | Ad Network, Ad Server, Mobile | go to site | |
| Zypmedia | Advertiser, Video | go to site |
