PubMatic files lawsuit against Google seeking damages for monopoly harm

PubMatic Inc. (NASDAQ: PUBM) filed a lawsuit against Google (NASDAQ: GOOG) in the U.S. District Court for the Eastern District of Virginia, seeking financial damages following a court ruling that found Google engaged in anticompetitive practices in digital advertising markets.

The lawsuit follows an April 2025 U.S. District Court ruling that determined Google "willfully engaged in a series of anticompetitive acts to acquire and maintain monopoly power in the publisher ad server and ad exchange markets for open-web display advertising."

PubMatic's complaint alleges Google's actions directly impacted the company's market share and revenue growth potential. The digital advertising technology company claims Google's dominance harmed publishers, advertisers, and consumers through higher advertising costs, reduced content diversity, and less marketplace transparency.

"Google's systematic abuse of its vast resources and immense power has harmed our business and distorted a marketplace that should have rewarded innovation and fueled transparency and competition," said Rajeev Goel, PubMatic's co-founder and CEO.

The lawsuit seeks to hold Google accountable for what PubMatic characterizes as unlawful monopolistic behavior and aims to restore competitive conditions in digital advertising markets. PubMatic operates a sell-side platform that helps digital content creators monetize their inventory through programmatic advertising.

PubMatic is represented by Hueston Hennigan LLP in the litigation. The company has made the full complaint available and created a website dedicated to the case.

The information is based on a company press release.

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