Advertisers file mass arbitration

Advertisers are starting mass arbitration claims against Google after two federal courts found the company ran illegal monopolies in search and ad technology. (claimsjournal.com) The first claims are expected to be filed this week, according to Chicago lawyer Ashley Keller, who told Bloomberg he has already signed up a “significant number” of advertisers. Advertiser contracts with Google require disputes to go to arbitration instead of court. (claimsjournal.com) Keller told Bloomberg his economist’s estimate puts potential claims tied to online search and display ads at $218 billion or more. Google said in a recent corporate filing that it faces private damages claims tied to antitrust cases worldwide but “cannot estimate a possible loss.” (claimsjournal.com) Mass arbitration means hundreds or thousands of separate claims are filed at the same time before private arbitrators instead of one class action in court. The American Arbitration Association counted 82 consumer mass arbitrations and 10 employment mass arbitrations in 2024, and the Google matter may be the first built around corporate claimants. (claimsjournal.com) The claims build on two court losses for Google. On August 5, 2024, Judge Amit Mehta ruled in Washington that Google illegally maintained monopolies in general search services and general search text advertising. (justice.gov) A second ruling came on April 17, 2025, when Judge Leonie Brinkema in Virginia found Google liable for monopolizing publisher ad servers and ad exchanges, the software websites use to manage ad space and the marketplaces that match buyers with sellers. She wrote that the conduct harmed publishers, competition and readers on the open web. (justice.gov) (cnbc.com) That April 2025 decision did not give the government everything it wanted. Brinkema said prosecutors failed to prove a separate monopoly claim in advertiser ad networks, which narrows part of the case even as other findings stand. (cnbc.com) Google has said it will fight. After the ad-tech ruling, Lee-Anne Mulholland, the company’s vice president for regulatory affairs, said Google would appeal and argued that publishers choose its tools because they are “simple, affordable and effective.” (cnbc.com) The search case has already moved into remedies. On September 2, 2025, the Justice Department said the court barred Google from maintaining exclusive distribution contracts tied to Google Search, Chrome, Google Assistant and the Gemini application, and ordered Google to make some search data and syndication services available to rivals. (justice.gov) Lawyers organizing advertisers say arbitration offers a path around those contract clauses because each business can bring its own claim while still moving in a coordinated wave. Similar mass arbitrations have taken 12 to 24 months from filing to resolution, which means Google’s exposure may hang over several quarters even before appeals are finished. (claimsjournal.com)