Advertisers prep Google arbitration

Advertisers are preparing mass arbitration claims against Google after two federal antitrust losses, opening a new private damages fight that could run into the billions. (searchengineland.com) (justice.gov) Search Engine Land reported on April 14 that the first claims could be filed this week, and lawyer Ashley Keller said commissioned economic analysis estimated more than $218 billion in potential damages for search and display advertising. (searchengineland.com) (bizbrief.ie) The tactic turns on Google’s own contracts: instead of one class action, advertisers can bring many individual arbitration demands over alleged overcharges tied to Google Ads and display ad tools. A federal judge in California sent one advertiser, PVC Fence Wholesaler, to arbitration in March 2026. (searchengineland.com) (mediapost.com) The legal backdrop is unusually strong for plaintiffs because courts have already found Google broke antitrust law in two core businesses. In August 2024, a federal judge in Washington ruled Google illegally monopolized general search and general search text ads. (justice.gov) (congress.gov) In April 2025, a federal judge in Virginia ruled Google unlawfully monopolized publisher ad servers and ad exchanges, the software publishers use to manage ad space and run auctions for buyers. The court also found Google unlawfully tied its publisher ad server to its ad exchange. (justice.gov) (oag.ca.gov) Google has said it disagrees with the monopoly rulings and plans to appeal at least part of the ad tech decision. After the Virginia ruling, Google regulatory affairs vice president Lee-Anne Mulholland said the company had won half the case and would appeal the rest. (theregister.com) (justice.gov) A separate lawsuit filed on April 14 adds to the pressure. Aptoide, a Portuguese rival app store, sued Google in federal court in San Francisco, alleging Google monopolized Android app distribution and in-app billing and blocked smaller stores from scaling. (usnews.com) (srnnews.com) Aptoide said it is the world’s third-largest Android app store and argued it could have put more pressure on Google’s pricing and policies without what it called Google’s “anticompetitive chokehold.” The suit seeks an injunction and treble damages under United States antitrust law. (usnews.com) (pocketgamer.biz) Google did not immediately respond to Reuters requests for comment on the Aptoide case. In the advertiser fight, the next test is whether thousands of businesses actually file and whether arbitrators accept overcharge models built on the monopoly findings already on the books. (usnews.com) (searchengineland.com)