pubX raises $5M, buys Compliant to build agent-to-agent ad infrastructure
What's the deal? pubXDealroom has a profile for this one. Try Dealroom →, which builds agent-to-agent infrastructure for advertising, has raised a $5 million Series A led by Chicago Ventures and acquired CompliantDealroom has a profile for this one. Try Dealroom →, a media quality and governance company. Terms of the acquisition were undisclosed. Compliant keeps its name and operates as a pubX company.
What's the endgame? pubX builds agents that plan, buy, sell, and optimise advertising — plus the infrastructure they transact on. Its buyer and seller agents work directly with each other, from brief to reporting, across every channel. The aim: more of each dollar reaching the publisher behind the media.
Why now? pubX began on the publisher side, helping publishers price and sell inventory. Compliant, founded by former Unilever and P&GDealroom has a profile for this one. Try Dealroom → executives, focused on the demand side, serving global brands and their agencies. The deal unites both sides in one company, built on the open Ad Context Protocol.
The product: Compliant's Data Integrity and CTV Quality Indexes now sit inside each agent's decision, shaping what it considers before it buys. Clients set the level of autonomy, approve plans at key stages, and the agents execute within those rules. "As trust is earned, autonomy grows," the company said.
Compliant chief executive officer Jamie Barnard becomes president, global demand growth at pubX, leading growth across agencies, advertisers, and the wider buy-side. "Inside pubX, those media quality and governance signals sit in the decision itself, so an agent weighs them before it buys," Barnard said.
What could go wrong? The pitch rests on trust — persuading chief marketing officers to route budgets through autonomous agents. "No one hands their media budget to a system they don't trust," pubX co-founder and chief executive officer Andrew Mole has acknowledged.
The signal: Most of the industry is bolting an agentic layer onto existing infrastructure. pubX is betting that building for agents from the start — on both sides of the transaction — is the stronger position. "This time they built it for agents from the start," said Stuart Larkins, co-founder and general partner at Chicago Ventures. Whether buyers accept agents transacting directly will decide if that bet pays off.
Read more: prnewswire.com
Image credit: Generated with Gemini
