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Judge Lets Yelp Use DOJ’s Search Monopoly Findings Against Google

By  |  July 2, 2026
Judge Lets Yelp Use DOJ’s Search Monopoly Findings Against Google

Yelp has secured an important procedural victory in its antitrust lawsuit against Google after a federal judge ruled that the company can rely on key findings from the U.S. Department of Justice’s landmark search monopoly case instead of having to prove those issues again.

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    According to reporting by Law360, U.S. Magistrate Judge Susan van Keulen ruled that Google is precluded from relitigating certain issues already decided in the DOJ’s successful antitrust action, including findings relating to Google’s monopoly power in the general search market.

    The decision does not determine whether Google violated antitrust laws in Yelp’s separate lawsuit. Instead, it narrows the scope of litigation by allowing Yelp to use factual determinations from the government’s case, potentially saving significant time and resources as the dispute moves toward trial.

    Yelp sued Google in 2024, alleging the search giant used its dominance in general search to steer users toward Google’s own local search and review products while disadvantaging competitors such as Yelp. Google has denied the allegations and argues that competition in search has evolved significantly, particularly with the emergence of AI-powered search services.

    Read more: Judge Allows Yelp’s Antitrust Lawsuit Against Google to Proceed

    The latest ruling centers on the legal doctrine of issue preclusion, sometimes called collateral estoppel. The doctrine allows courts to prevent parties from relitigating issues that have already been fully litigated and decided in prior cases.

    Judge van Keulen concluded that several of the issues central to Yelp’s lawsuit—including market definition and Google’s monopoly power in general search—are substantially the same as those decided in the DOJ’s case before U.S. District Judge Amit Mehta. As a result, Google cannot challenge those specific findings again in the Yelp litigation.

    However, Yelp’s victory is limited. The company must still prove that Google unlawfully used its market power to harm competition in local search and that Yelp suffered injury as a result. Questions surrounding Google’s alleged conduct, competitive effects, and potential remedies remain unresolved.

    The ruling could have broader implications beyond Yelp’s lawsuit. Legal observers have noted that allowing private plaintiffs to rely on findings from the DOJ’s landmark antitrust victory may make it easier for other companies pursuing similar claims against Google to avoid relitigating foundational questions about the company’s market power.

    Source: Law360