Keller Postman Represents Thousands of U.S. Businesses in Mass Arbitration Seeking Billions in Google Ad Overcharge Recovery

May 11, 2026 – Following two landmark federal antitrust rulings finding that Google engaged in monopolistic and anticompetitive conduct, Keller Postman is representing U.S. businesses in a coordinated mass arbitration seeking recovery for alleged advertising overcharges.

For years, millions of businesses relied on Google’s advertising platforms to reach customers, trusting that pricing reflected fair market competition. Federal courts have now determined that Google unlawfully maintained dominance across key segments of the digital advertising ecosystem, including search and display advertising.

According to Alphabet’s public filings, U.S. businesses spent roughly $728 billion on Google search and display ads over the past decade. Experts in the federal antitrust cases have estimated that anticompetitive conduct may have significantly inflated those costs, creating the potential for substantial recovery under federal antitrust law. Federal antitrust law permits treble damages, meaning a 10% overcharge claim could translate into a recovery of up to 30% of the advertiser’s ad spend.

“This is the natural next chapter following the courts’ findings,” said Ashley Keller, founding partner of Keller Postman. “Federal judges have already determined that Google engaged in unlawful conduct. Millions of businesses paid for advertising in a market that was not operating competitively, and they deserve the opportunity to pursue that overcharge.”

Due to contractual arbitration provisions implemented by Google, these claims are proceeding through individual arbitration rather than class action litigation. Keller Postman is coordinating thousands of individual claims on behalf of businesses nationwide, allowing each claimant to pursue recovery based on its own advertising spend.

Mass arbitration enables businesses of all sizes, from small local companies to large enterprises, to seek accountability while leveraging coordinated legal strategy at scale. While prior public litigation has focused largely on publisher-side claims, advertiser claims represent a significantly larger portion of the digital advertising market. Because these proceedings take place in private arbitration, they have remained largely outside the public record.

Keller Postman has extensive experience in complex antitrust and mass arbitration matters and continues to advocate on behalf of businesses seeking recovery tied to unlawful market conduct. Businesses that purchased Google search or display advertising may be eligible to participate. To learn more, visit adsrefund.com.