333 South Grand Avenue, Los Angeles, CA 90071-3197 USA
Bradley J. Hamburger is a litigation partner in the Los Angeles office of Gibson, Dunn & Crutcher. His practice focuses on class actions and complex litigation in both trial courts and on appeal. He is a member of the firm’s Class Actions, Appellate and Constitutional Law, and Labor and Employment practice groups.
Mr. Hamburger has represented clients in class actions and appeals across many areas of law, including employment, insurance, antitrust, consumer fraud, products liability, legal malpractice, and administrative law. He has briefed dozens of appeals, including cases in the United States Supreme Court, the Ninth Circuit, and the California Supreme Court, and has argued before the Ninth Circuit and the California Court of Appeal.
Mr. Hamburger has significant expertise in seeking interlocutory appellate review of class certification orders under Federal Rule of Civil Procedure 23(f), obtaining enforcement of arbitration agreements, and defending clients against representative actions under California’s Labor Code Private Attorneys General Act. Mr. Hamburger also regularly represents technology companies, and he has substantial experience litigating the application of Section 230 of the Communications Decency Act.
In 2022, Law360 recognized Mr. Hamburger as a Rising Star in the Class Action category, and BTI Consulting Group included him on its Client Service All-Stars list. The Daily Journal named Mr. Hamburger as one of the top 40 lawyers in California under 40 in 2021. Mr. Hamburger also was part of the team that obtained one of the Daily Journal’s Top Appellate Reversals of 2021, Magadia v. Wal-Mart Associates, Inc., 999 F.3d 668 (9th Cir. 2021).
Recent Representative Matters Include:
Mr. Hamburger was a key member of both the trial and appeal teams in Chevron’s successful RICO action against a U.S. lawyer who was found to have fraudulently procured a multi-billion-dollar judgment against Chevron from an Ecuadorian court. After a seven-week bench trial in the Southern District of New York, the trial judge issued a 485-page decision in Chevron’s favor, the Second Circuit affirmed in full, and the Supreme Court denied certiorari. Chevron Corp. v. Donziger, 974 F. Supp. 2d 362 (S.D.N.Y. 2014), aff’d, 833 F.3d 74 (2d Cir. 2016), cert. denied, 137 S. Ct. 2268 (2017).
Mr. Hamburger’s publications include Article III Standing and Absent Class Members, 64 Emory L.J. 383 (2015) (with Theane Evangelis), and Three Myths About Wal-Mart Stores, Inc. v. Dukes, 82 Geo. Wash. L. Rev. Arguendo 45 (2014) (with Theodore J. Boutrous, Jr.). He also co-authored two chapters in the Third Edition of the American Bar Association’s A Practitioner’s Guide to Class Actions (2021), including the chapter on interlocutory appeals. He also routinely speaks at conferences on class actions and employment law.
Mr. Hamburger graduated cum laude from Harvard Law School in 2009. While at Harvard he served as co-Editor-in-Chief of the Harvard Journal of Law & Technology and was a member of the Board of Student Advisers. He graduated with honors from the University of California, Berkeley in 2004.
Prior to joining the firm, Mr. Hamburger served as a law clerk to the Honorable James V. Selna in the United States District Court for the Central District of California.
Mr. Hamburger is a member of the Board of Directors of the Friends of the Los Angeles County Law Library. Before entering law school, Mr. Hamburger taught middle school mathematics in New York City as a Teach for America corps member.
Harvard University - 2009 Juris Doctor
University of California - Berkeley - 2004 Bachelor of Arts