- Google LLC - 73.20%
- Microsoft Corporation - 30.50%
- Facebook, Inc. - 21.80%
- Amazon Technologies, Inc. - 18.60%
- The Trade Desk Inc - 17.90%
- Adobe Inc. - 16.60%
- Magnite, Inc. - 15.40%
- Cloudflare, Inc. - 14.80%
- OpenX Technologies Inc - 13.60%
- PubMatic, Inc. - 13.60%
- Yahoo Inc. - 13.50%
- Tapad, Inc. - 12.80%
- LiveRamp Holdings, Inc. - 12.70%
- Lotame Solutions, Inc. - 12.40%
- Index Exchange, Inc. - 11.20%
- IPONWEB GmbH - 11.00%
- ID5 Technology Ltd - 10.90%
- Amobee, Inc - 10.10%
- TripleLift - 9.78%
- LiveIntent Inc. - 9.71%
- RTB House S.A. - 9.67%
- Criteo SA - 9.60%
- Conversant LLC - 9.44%
- Sovrn Holdings - 9.42%
- 33Across, Inc. - 9.28%
- Smartadserver S.A.S - 8.90%
- Sharethrough, Inc. - 8.85%
- OneTrust LLC - 8.71%
- Media.net Advertising FZ-LLC - 8.68%
- RhythmOne - 8.59%
- Collective Roll - 8.35%
- Beeswax - 8.18%
- Adform A/S - 7.64%
- Quantcast Corporation - 7.22%
- Adelphic, Inc. - 7.08%
- Improve Digital BV - 7.00%
- Pulsepoint, Inc. - 6.93%
- comScore, Inc - 6.90%
- Outbrain - 6.79%
- Almondnet Group - 6.69%
- Sonobi, Inc - 6.66%
- Centro, Inc. - 6.65%
- Zeta Global - 6.55%
- Simplifi Holdings Inc. - 6.47%
- GumGum - 6.32%
- Smaato Inc. - 6.31%
- Pinduoduo Inc. - 6.25%
- Unruly Group Limited - 6.04%
- FreeWheel - 6.02%
- YieldMo, Inc. - 5.97%
- DeepIntent Inc - 5.42%
- Monet Engine Inc. - 5.38%
- Twitter, Inc. - 5.10%
- The Nielsen Company - 4.93%
- ByteDance Ltd. - 4.92%
- Pinterest, Inc. - 4.92%
- InMobi Pte Ltd - 4.66%
- TransUnion LLC - 4.61%
- Online Media Solutions Ltd. dba Brightcom - 4.59%
- Prospect One - 4.57%
- Hotjar Ltd - 4.40%
- OnAudience Ltd. - 4.37%
- Teads ( Luxenbourg ) SA - 4.36%
- Unity Software Inc. - 4.30%
- Adyoulike - 4.21%
- Blis Global Ltd - 4.08%
- Throtle - 4.03%
- Taboola, Inc. - 4.02%
- Kargo Global, Inc. - 3.85%
- Disqus, Inc. - 3.82%
- Opera Software AS - 3.81%
- Nativo, Inc - 3.71%
- eyeota Limited - 3.59%
- Blockthrough Inc. - 3.55%
- Mediavine, Inc. - 3.53%
- Audigent - 3.38%
- Klaviyo - 3.37%
- Rich Audience Technologies - 3.19%
- WPP plc - 3.16%
- Shopify Inc. - 3.07%
- Automattic, Inc. - 3.05%
- Brandmetrics - 2.93%
- Mediaocean LLC - 2.89%
- Akamai Technologies - 2.83%
- New Relic - 2.79%
- Ogury Limited - 2.79%
- Merkle Inc - 2.76%
- IQzone Inc. - 2.74%
- Vidazoo Ltd - 2.71%
- Reddit Inc. - 2.70%
- OpenJS Foundation - 2.63%
- SEEDTAG ADVERTISING S.L. - 2.54%
- Adkernel, LLC - 2.53%
- KBM Group LLC - 2.42%
- ADman Media - 2.38%
- AdThrive, LLC - 2.36%
- MediaMath, Inc. - 2.35%
- Bombora Inc. - 2.29%
- HubSpot, Inc. - 2.24%
- SSP Network Ltd - 2.11%