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Thompson III, William

William Thompson III

Managing Associate
  • False Claims Act
  • Regulatory Litigation
  • Supreme Court, Appellate, and Litigation Strategies
  • White Collar Defense and Investigations

Biography

WILLIAM THOMPSON represents individuals and corporations in all stages of litigation, with a focus on appeals and critical motions.

Will rejoined Sidley after serving as a law clerk to The Honorable Patrick J. Bumatay of the U.S. Court of Appeals for the Ninth Circuit. Prior to joining the firm, he served as a Pro Bono Fellow at The Becket Fund for Religious Liberty, where he represented religious nonprofits in First Amendment cases before the federal courts of appeals.

Will graduated, magna cum laude, from Georgetown University Law Center and was inducted into the Order of the Coif. During law school, he also served as a judicial intern at the U.S. District Court for the District of Columbia.

Before law school, Will worked as a national security consultant at a boutique consulting firm in Washington, D.C.

Credentials

Admissions & Certifications
  • U.S. Court of Appeals, 9th Circuit
  • District of Columbia
Education
  • Georgetown University Law Center, J.D., 2021, magna cum laude, Order of the Coif
  • Wake Forest University, B.A., 2015, cum laude
Clerkships
  • Patrick J. Bumatay, U.S. Court of Appeals, 9th Circuit (2024-2025)