Raphael Prober

Rafi Prober is a nationally respected authority on congressional and governmental investigations. Rafi is Co-Head of the Firm’s Congressional Investigations Practice, having advised major corporations, institutions and individuals in hundreds of congressional investigations before all investigative committees of the House and Senate, including many of the most complex and high-profile inquiries of the last two decades.

He routinely provides strategic insight and counsel to companies, senior executives and boards facing legal, reputational and business crisis situations, including representing numerous clients in high-profile congressional hearings and testimony. His work spans numerous sectors—including banking and financial services, crypto, nonprofit, philanthropies and family offices, technology and AI, energy, healthcare, government contractors, pharmaceuticals, sports and retail.

Joined Simpson Thacher in 2026. Previously, Rafi was appointed to serve as an Associate Deputy Attorney General at the U.S. Department of Justice, where he oversaw responses to Congressional oversight, among other responsibilities.

District of Columbia Bar, New York Bar

J.D., Georgetown University Law Center, cum laude

B.S., Georgetown University, magna cum laude