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Backed by Chicago Ventures · verified emails and LinkedIn on Datapile
Advertising platform PubX raises $5m and acquires Compliant - Mumbrella
PubX builds agent-to-agent infrastructure for advertising, enabling direct transactions between buyer and seller agents. The company recently raised $5 million in Series A funding led by Chicago Ventures and acquired Compliant, a media quality and governance company. This acquisition aims to integrate media quality and governance signals into every advertising decision, enhancing trust and transparency.
Advertising platform PubX raises $5m and acquires Compliant Mumbrella

| Oct 08, 2026 | Natron Energy | $10.2M | — | United States |
| Oct 08, 2026 | Hone | $60.0M | Seed | United States |
| Oct 08, 2026 | Arena | $200.0M | Series B | United States |
| Oct 08, 2026 | Quaise Energy | $25.0M | Grant | United States |
You just read who funded pubX. The same database has the investors behind every other round — with verified emails, check sizes and the stages they actually write at.
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