- Google LLC - 72.70%
- Microsoft Corporation - 32.30%
- Facebook, Inc. - 21.50%
- Cloudflare, Inc. - 21.00%
- Amazon Technologies, Inc. - 19.00%
- The Trade Desk Inc - 19.00%
- Magnite, Inc. - 15.30%
- Adobe Inc. - 15.20%
- OpenX Technologies Inc - 14.20%
- LiveRamp Holdings, Inc. - 13.40%
- PubMatic, Inc. - 13.40%
- Yahoo Inc. - 13.30%
- ID5 Technology Ltd - 12.90%
- Index Exchange, Inc. - 12.30%
- Tapad, Inc. - 12.30%
- Lotame Solutions, Inc. - 11.60%
- IPONWEB GmbH - 11.20%
- Amobee, Inc - 10.90%
- Criteo SA - 10.10%
- RTB House S.A. - 9.98%
- TripleLift - 9.86%
- Sovrn Holdings - 9.80%
- LiveIntent Inc. - 9.65%
- Conversant LLC - 9.60%
- Collective Roll - 9.58%
- 33Across, Inc. - 9.32%
- Smartadserver S.A.S - 8.88%
- Sharethrough, Inc. - 8.77%
- RhythmOne - 8.57%
- Media.net Advertising FZ-LLC - 8.53%
- OneTrust LLC - 8.45%
- Beeswax - 8.14%
- Improve Digital BV - 7.82%
- Almondnet Group - 7.81%
- Adelphic, Inc. - 7.62%
- Quantcast Corporation - 7.33%
- Adform A/S - 7.24%
- Zeta Global - 7.22%
- Pulsepoint, Inc. - 7.13%
- Outbrain - 7.07%
- comScore, Inc - 7.06%
- Pinduoduo Inc. - 6.93%
- YieldMo, Inc. - 6.64%
- Centro, Inc. - 6.59%
- GumGum - 6.58%
- Blis Global Ltd - 6.52%
- Sonobi, Inc - 6.46%
- Smaato Inc. - 6.22%
- Simplifi Holdings Inc. - 6.02%
- Unruly Group Limited - 5.90%
- Monet Engine Inc. - 5.73%
- FreeWheel - 5.36%
- DeepIntent Inc - 5.33%
- Teads ( Luxenbourg ) SA - 5.19%
- ByteDance Ltd. - 5.11%
- Pinterest, Inc. - 5.09%
- Twitter, Inc. - 4.91%
- Prospect One - 4.72%
- InMobi Pte Ltd - 4.71%
- TransUnion LLC - 4.63%
- Online Media Solutions Ltd. dba Brightcom - 4.51%
- Hotjar Ltd - 4.33%
- Opera Software AS - 4.32%
- Kargo Global, Inc. - 4.11%
- The Nielsen Company - 3.99%
- ADman Media - 3.91%
- Unity Software Inc. - 3.89%
- eyeota Limited - 3.89%
- Taboola, Inc. - 3.88%
- consentmanager AB - 3.84%
- Blockthrough Inc. - 3.79%
- Klaviyo - 3.74%
- Adyoulike - 3.61%
- Mediavine, Inc. - 3.59%
- Nativo, Inc - 3.49%
- OnAudience Ltd. - 3.46%
- Shopify Inc. - 3.35%
- Mediaocean LLC - 3.34%
- IQzone Inc. - 3.32%
- Disqus, Inc. - 3.31%
- Audigent - 3.15%
- Rich Audience Technologies - 3.09%
- WPP plc - 2.94%
- Automattic, Inc. - 2.90%
- Reddit Inc. - 2.86%
- MediaMath, Inc. - 2.85%
- Brandmetrics - 2.83%
- Akamai Technologies - 2.82%
- New Relic - 2.75%
- Ogury Limited - 2.75%
- Throtle - 2.74%
- Merkle Inc - 2.67%
- SEEDTAG ADVERTISING S.L. - 2.62%
- OpenJS Foundation - 2.59%
- Vidazoo Ltd - 2.55%
- AdThrive, LLC - 2.46%
- Engine USA LLC - 2.39%
- KBM Group LLC - 2.30%
- Bombora Inc. - 2.27%
- Adkernel, LLC - 2.25%