Leah Brannon is a partner at Cleary Gottlieb Steen & Hamilton LLP in Washington DC. Leah Brannon’s practice focuses on antitrust matters, including mergers and litigation, and appellate litigation. Her work has involved cases in both federal and state courts, and she has advised clients in investigations by the Department of Justice, the Federal Trade Commission, state agencies, and the European Commission. Her recent experience includes representing Google Inc. in connection with the enforcement of the consent decree in United States v. Microsoft. She represented PeopleSoft Inc. in its $10 billion acquisition by Oracle Corporation and related litigation, and Maytag Corporation in its $2.7 billion acquisition by Whirlpool Corporation. She also defended Otis Elevator Company and United Technologies Corporation against a purported antitrust class action, which involved a successful motion to dismiss all claims that was subsequently affirmed on all counts by the U.S. Court of Appeals for the Second Circuit. Ms. Brannon is distinguished as one of the leading antitrust lawyers by Chambers USA, U.S. Legal 500 and Washingtonian magazine. In addition, in 2011 she was selected as one of The American Lawyer’s "45 Under 45" best young women lawyers, and in 2010 she was named a "future star" by Benchmark Litigation: The Definitive Guide to America’s Leading Litigation Firms and Attorneys, and one of Law360’s ten "rising stars" in antitrust law.

2022 Awards

2021 Awards


Nominee, 2022 Antitrust Writing Awards: Business, General Antitrust

Nominee, 2017 Antitrust Writing Awards: Business, Procedure

Nominee, 2012 Antitrust Writing Awards: Business, Mergers

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