- Google LLC - 77.70%
- Microsoft Corporation - 34.80%
- Facebook, Inc. - 26.50%
- Amazon Technologies, Inc. - 20.50%
- The Trade Desk Inc - 20.00%
- Adobe Inc. - 18.40%
- Magnite, Inc. - 17.80%
- Tapad, Inc. - 16.10%
- PubMatic, Inc. - 15.50%
- Index Exchange, Inc. - 15.40%
- LiveRamp Holdings, Inc. - 15.20%
- Verizon Media - 15.20%
- OpenX Technologies Inc - 14.60%
- Lotame Solutions, Inc. - 14.10%
- Cloudflare, Inc. - 12.70%
- TripleLift - 12.10%
- IPONWEB GmbH - 11.80%
- LiveIntent Inc. - 11.40%
- Conversant LLC - 11.10%
- Amobee, Inc - 11.00%
- Outbrain - 11.00%
- Collective Roll - 10.90%
- Smartadserver S.A.S - 10.80%
- Sharethrough, Inc. - 10.70%
- 33Across, Inc. - 10.50%
- Sovrn Holdings - 10.30%
- Centro, Inc. - 10.20%
- ID5 Technology Ltd - 10.10%
- RhythmOne - 9.82%
- Beeswax - 9.75%
- RTB House S.A. - 9.67%
- Criteo SA - 9.61%
- Adform A/S - 9.49%
- Pulsepoint, Inc. - 9.35%
- Simplifi Holdings Inc. - 9.18%
- Adelphic, Inc. - 8.93%
- OneTrust LLC - 8.82%
- Quantcast Corporation - 8.75%
- Neustar, Inc. - 8.66%
- Media.net Advertising FZ-LLC - 8.50%
- YieldMo, Inc. - 7.75%
- comScore, Inc - 7.58%
- Smaato Inc. - 7.56%
- Unruly Group Limited - 7.53%
- Zeta Global - 7.28%
- Improve Digital BV - 6.92%
- Sonobi, Inc - 6.87%
- GumGum - 6.81%
- Twitter, Inc. - 6.76%
- The Nielsen Company - 6.67%
- Throtle - 6.41%
- FreeWheel - 6.37%
- OnAudience Ltd. - 6.23%
- Pinterest, Inc. - 6.18%
- DeepIntent Inc - 6.08%
- Teads ( Luxenbourg ) SA - 5.94%
- Semasio GmbH - 5.83%
- Taboola, Inc. - 5.83%
- Hotjar Ltd - 5.82%
- Roku, Inc. - 5.78%
- Monet Engine Inc. - 5.71%
- Opera Software AS - 5.63%
- Prospect One - 5.46%
- Intent IQ, LLC - 5.32%
- LoopMe Ltd - 5.32%
- MediaMath, Inc. - 4.98%
- ADman Media - 4.79%
- ByteDance Ltd. - 4.73%
- Kargo Global, Inc. - 4.73%
- Mediavine, Inc. - 4.67%
- Nativo, Inc - 4.60%
- Akamai Technologies - 4.07%
- Klaviyo - 3.83%
- InMobi Pte Ltd - 3.77%
- eyeota Limited - 3.73%
- Cognitiv Corp. - 3.67%
- Adyoulike - 3.58%
- Unity Software Inc. - 3.55%
- Supership Inc - 3.49%
- New Relic - 3.44%
- Audigent - 3.35%
- Valassis Digital - 3.33%
- Brandmetrics - 3.29%
- Ogury Limited - 3.29%
- Exponential Interactive Inc. - 3.27%
- OpenJS Foundation - 3.23%
- Merkle Inc - 3.19%
- Automattic, Inc. - 3.16%
- Shopify Inc. - 3.13%
- Confiant, Inc. - 3.12%
- Disqus, Inc. - 2.96%
- Flashtalking Inc - 2.91%
- McCann Disciplines Ltd. - 2.88%
- Beachfront Media LLC - 2.83%
- Rich Audience Technologies - 2.79%
- AdGear Technologies Inc. - 2.61%
- Salesforce.com, Inc. - 2.52%
- HubSpot, Inc. - 2.49%
- Reddit Inc. - 2.48%
- AdThrive, LLC - 2.45%