Gupta Wessler LLP is an appellate and complex litigation boutique. We argue high-stakes cases in the U.S. Supreme Court and state and federal courts. We also run the Harvard Supreme Court Litigation Clinic. Through all our efforts, we aim to help shape the law in ways that enhance justice and improve people’s lives.

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“The go-to advocate for consumers and other plaintiffs” on appeal — The National Law Journal

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Gupta Wessler has “staked a name for itself” as the nation’s “premier plaintiffs-side appellate firm.” — Law360

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Our record speaks for itself. Over the past two terms alone, Gupta Wessler presented seven U.S. Supreme Court arguments, delivered by all of the firm’s partners. Only four other law firms–all large corporate firms–had as many arguments.

Remarkably, we had the highest win rate (71.4%) in that elite group, and we achieved our record exclusively on behalf of plaintiffs. Measured over the past five terms, our win rate (77.8%) was even higher—a feat matched by only one big firm. All told, advocates at Gupta Wessler have argued 33 cases before the Supreme Court.

Beyond the U.S. Supreme Court, top trial lawyers consistently entrust us to defend the nation’s largest jury verdicts and the highest stakes appeals in class actions, multi-district litigation, and individual cases. 

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“Since 2012, Gupta Wessler has become a mainstay of the Supreme Court bar, and has continued to rack up victories on behalf of consumers and workers.” — The National Law Journal

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In 2025, we were named Law360 “Appellate Group of the Year” and were put on National Law Journal’s “Appellate Hot List.” Deepak Gupta was honored by Law360 as 2025 “Appellate MVP of the Year” and as a finalist for the NLJ’s 2025 “Appellate Lawyer of the Year.” Our work has also been repeatedly honored with the National Civil Justice Institute’s Appellate Advocacy Award, which “recognizes excellence in appellate advocacy in America.”

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The introduction of Gupta Wessler’s “impressive team” into a legal battle against a large corporate adversary means that “the opposing parties’ legal forces have been equalized” in the “arena of appellate combat.” — Businessweek