Thomas D. Warren

O: (216) 302-7487
[email protected]

Thomas D. Warren

Tom Warren is a nationally recognized appellate and trial lawyer. Over the course of his career, Tom has been called on by some of the country’s most significant companies to reverse or defend multimillion dollar verdicts. He has practiced appellate law at the highest levels, both in the Supreme Court and in appellate courts all over the country. Tom also serves as a strategic analyst and brief writer in bet-the-company litigation and other high-profile matters. He also focuses his practice on class action law, both at the trial and appellate level.

Before joining Pierce Bainbridge, Tom served as the national co-chair of the appellate practice of one of the country’s largest law firms. Tom also headed the firm’s class action appellate practice.

Tom has been named in Chambers USA as a leading lawyer in Commercial Litigation every year since 2010, with clients calling him “super smart” and an “excellent strategist” with a “successful appellate practice,” and commending his ability to "frame an issue beautifully."

Tom has been named "Appellate Lawyer of the Year" in Cleveland by The Best Lawyers in America© several times. He is certified as a specialist in appellate practice in California and Ohio.

Tom spent nearly a decade as a federal prosecutor with the U.S. Department of Justice in Los Angeles, serving as the Chief of the General Crimes Section and as Senior Litigation Counsel.

A seasoned trial lawyer, Tom has never lost a trial.


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Acted as a lead attorney on appeal issues as court-appointed counsel to the Securities Investor Protection Act Trustee for the liquidation of Bernard L. Madoff Investment Securities LLC.

Successfully had United States Supreme Court grant certiorari and reverse Sixth Circuit in case involving vesting of retiree health care benefits.

Recently retained by insurer to seek reversal of $44 million verdict in case brought by insured.

Successfully reversed $43 million jury verdict against insurer in case brought by former agent.

Retained post-trial to challenge $47 million jury award against national waste hauler brought by former executive.

Retained by insurer after jury rendered $34 million verdict brought by insured; case settled soon after Tom’s retention.

Successfully reversed multimillion dollar jury verdict against a client for claims of fraudulent transfer in connection with the leveraged buyout of a subsidiary, with judgment directed in the client's favor.

Successfully reversed multimillion dollar jury verdict in a case brought by a discharged employee against tech company alleging breach of a stock option agreement, with judgment directed in the client's favor.

Successfully reversed defense verdict in case brought by vodka maker for trademark infringement; on remand, jury returned verdict for client for $18 million.

Retained to defend national health-care company against multiple securities class actions.

Successfully defeated class action brought against a national bank by victims of a $70 million Ponzi scheme.

Successfully sued global reinsurer on behalf of national bank, with client receiving more than $200 million.

Successfully defended national media company in consumer class actions involving alleged violations of the California automatic renewal law.

Defended preeminent consumer products company in appeal of grant of certification.

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