- Google LLC - 75.30%
- Microsoft Corporation - 32.20%
- Facebook, Inc. - 23.80%
- Amazon Technologies, Inc. - 18.90%
- The Trade Desk Inc - 18.70%
- Adobe Inc. - 18.10%
- Magnite, Inc. - 16.70%
- PubMatic, Inc. - 14.60%
- Tapad, Inc. - 14.40%
- Yahoo Inc. - 13.90%
- LiveRamp Holdings, Inc. - 13.80%
- Cloudflare, Inc. - 13.70%
- OpenX Technologies Inc - 13.50%
- Lotame Solutions, Inc. - 13.40%
- Index Exchange, Inc. - 12.40%
- LiveIntent Inc. - 11.10%
- TripleLift - 10.80%
- IPONWEB GmbH - 10.50%
- Amobee, Inc - 10.30%
- ID5 Technology Ltd - 10.00%
- Conversant LLC - 9.97%
- Sovrn Holdings - 9.87%
- Smartadserver S.A.S - 9.67%
- Collective Roll - 9.62%
- Criteo SA - 9.33%
- OneTrust LLC - 9.17%
- Sharethrough, Inc. - 9.11%
- Beeswax - 8.80%
- RTB House S.A. - 8.73%
- Outbrain - 8.68%
- 33Across, Inc. - 8.46%
- RhythmOne - 8.43%
- Adform A/S - 8.23%
- Quantcast Corporation - 8.17%
- The Nielsen Company - 8.05%
- Centro, Inc. - 8.04%
- Adelphic, Inc. - 7.94%
- Simplifi Holdings Inc. - 7.94%
- Media.net Advertising FZ-LLC - 7.74%
- Zeta Global - 7.62%
- Pulsepoint, Inc. - 7.25%
- comScore, Inc - 7.06%
- TransUnion LLC - 6.99%
- Improve Digital BV - 6.81%
- GumGum - 6.27%
- Sonobi, Inc - 6.07%
- Throtle - 5.96%
- OnAudience Ltd. - 5.84%
- Twitter, Inc. - 5.83%
- Pinterest, Inc. - 5.56%
- YieldMo, Inc. - 5.48%
- DeepIntent Inc - 5.44%
- Teads ( Luxenbourg ) SA - 5.44%
- Monet Engine Inc. - 5.35%
- Semasio GmbH - 5.27%
- Almondnet Group - 5.22%
- Opera Software AS - 5.19%
- Prospect One - 5.17%
- Unruly Group Limited - 5.09%
- ByteDance Ltd. - 5.07%
- Smaato Inc. - 5.05%
- Hotjar Ltd - 4.96%
- Taboola, Inc. - 4.82%
- Kargo Global, Inc. - 4.60%
- Mediavine, Inc. - 4.57%
- Online Media Solutions Ltd. dba Brightcom - 4.49%
- MediaMath, Inc. - 4.34%
- FreeWheel - 4.21%
- Nativo, Inc - 4.09%
- Pinduoduo Inc. - 3.87%
- Confiant, Inc. - 3.66%
- Akamai Technologies - 3.57%
- Klaviyo - 3.55%
- InMobi Pte Ltd - 3.44%
- Audigent - 3.30%
- eyeota Limited - 3.29%
- Automattic, Inc. - 3.19%
- Blockthrough Inc. - 3.18%
- Merkle Inc - 3.13%
- Mediaocean LLC - 3.10%
- New Relic - 3.01%
- Vidazoo Ltd - 2.97%
- Brandmetrics - 2.96%
- OpenJS Foundation - 2.96%
- WPP plc - 2.92%
- Shopify Inc. - 2.90%
- Cognitiv Corp. - 2.70%
- Exponential Interactive Inc. - 2.69%
- Rich Audience Technologies - 2.68%
- Bombora Inc. - 2.56%
- Reddit Inc. - 2.53%
- AdThrive, LLC - 2.44%
- Ogury Limited - 2.44%
- AdGear Technologies Inc. - 2.43%
- HubSpot, Inc. - 2.42%
- McCann Disciplines Ltd. - 2.33%
- Valassis Digital - 2.30%
- KBM Group LLC - 2.23%
- Adyoulike - 2.20%
- SEEDTAG ADVERTISING S.L. - 2.11%