- Google LLC - 77.40%
- Microsoft Corporation - 33.80%
- Facebook, Inc. - 26.10%
- The Trade Desk Inc - 19.90%
- Amazon Technologies, Inc. - 19.60%
- Adobe Inc. - 19.30%
- Magnite, Inc. - 17.60%
- Tapad, Inc. - 15.60%
- PubMatic, Inc. - 15.20%
- Verizon Media - 15.20%
- Index Exchange, Inc. - 14.80%
- OpenX Technologies Inc - 14.40%
- LiveRamp Holdings, Inc. - 14.00%
- Lotame Solutions, Inc. - 13.80%
- TripleLift - 12.80%
- Cloudflare, Inc. - 12.50%
- Collective Roll - 12.20%
- LiveIntent Inc. - 12.00%
- IPONWEB GmbH - 11.60%
- Smartadserver S.A.S - 11.20%
- Amobee, Inc - 11.10%
- Conversant LLC - 10.80%
- Sharethrough, Inc. - 10.80%
- Outbrain - 10.70%
- 33Across, Inc. - 10.60%
- Sovrn Holdings - 10.60%
- ID5 Technology Ltd - 9.93%
- RhythmOne - 9.75%
- Beeswax - 9.64%
- Pulsepoint, Inc. - 9.53%
- Criteo SA - 9.50%
- RTB House S.A. - 9.36%
- Simplifi Holdings Inc. - 9.15%
- Centro, Inc. - 8.77%
- OneTrust LLC - 8.66%
- Media.net Advertising FZ-LLC - 8.61%
- Quantcast Corporation - 8.59%
- Adelphic, Inc. - 8.37%
- Adform A/S - 8.35%
- Throtle - 8.04%
- Neustar, Inc. - 8.00%
- YieldMo, Inc. - 7.60%
- Smaato Inc. - 7.51%
- comScore, Inc - 7.47%
- Zeta Global - 7.38%
- Unruly Group Limited - 7.34%
- Roku, Inc. - 7.27%
- GumGum - 6.89%
- The Nielsen Company - 6.87%
- Sonobi, Inc - 6.78%
- Improve Digital BV - 6.76%
- Twitter, Inc. - 6.67%
- FreeWheel - 6.62%
- Kargo Global, Inc. - 6.42%
- Pinterest, Inc. - 5.88%
- DeepIntent Inc - 5.68%
- Taboola, Inc. - 5.67%
- LoopMe Ltd - 5.66%
- Teads ( Luxenbourg ) SA - 5.65%
- Hotjar Ltd - 5.63%
- Monet Engine Inc. - 5.62%
- Prospect One - 5.39%
- Intent IQ, LLC - 5.38%
- MediaMath, Inc. - 5.14%
- ADman Media - 4.62%
- Mediavine, Inc. - 4.58%
- ByteDance Ltd. - 4.48%
- Opera Software AS - 4.46%
- Adyoulike - 4.23%
- Akamai Technologies - 4.12%
- Nativo, Inc - 3.93%
- Audigent - 3.59%
- InMobi Pte Ltd - 3.58%
- New Relic - 3.50%
- Klaviyo - 3.49%
- Unity Software Inc. - 3.45%
- Supership Inc - 3.39%
- Automattic, Inc. - 3.32%
- Brandmetrics - 3.32%
- eyeota Limited - 3.27%
- OpenJS Foundation - 3.21%
- Merkle Inc - 3.11%
- Cognitiv Corp. - 3.08%
- Confiant, Inc. - 3.07%
- Exponential Interactive Inc. - 2.99%
- Disqus, Inc. - 2.88%
- Flashtalking Inc - 2.84%
- AdGear Technologies Inc. - 2.82%
- Shopify Inc. - 2.80%
- Beachfront Media LLC - 2.74%
- McCann Disciplines Ltd. - 2.74%
- Valassis Digital - 2.65%
- Salesforce.com, Inc. - 2.46%
- Blockthrough Inc. - 2.45%
- HubSpot, Inc. - 2.43%
- Integral Ad Science, Inc. - 2.42%
- AdThrive, LLC - 2.41%
- Reddit Inc. - 2.35%
- Vidazoo Ltd - 2.34%
- SSP Network Ltd - 2.31%