Rafi Prober, Co-Head of the Firm’s Congressional Investigations Practice, routinely provides strategic insight and counsel to companies, senior executives and boards facing legal, reputational and business crisis situations. A highly respected authority on congressional and governmental investigations, he has advised major corporations, institutions and individuals on some of the most complex and high-profile inquiries of the last two decades.
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.
Rafi also represents clients before a broad array of federal executive branch departments and agencies, including the Departments of Justice, Defense and Health and Human Services. He also represents clients in numerous related matters, including inquiries from state attorneys general, state legislatures and offices of inspectors general as well as in high-stakes related litigation.
Band 1–ranked by Chambers USA, Rafi’s clients describe him as “a go-to lawyer for anyone being investigated or appearing before Congress,” and as “a world-class lawyer with superb awareness, responsiveness and commitment to his clients.” 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.
Rafi previously served as an adjunct professor at Georgetown University Law Center and Fordham Law School, where he taught a course on congressional investigations.
Rafi’s experience prior to joining Simpson Thacher includes representing:
- A leading SPAC sponsor in congressional investigations of the industry
- A global pharmaceutical manufacturer in multiple congressional investigations concerning drug‑pricing issues
- An international bank in high‑profile investigations by Congress and other governmental authorities concerning reported business dealings with former senior government officials and related parties
- A prominent FinTech company in investigations concerning pandemic relief funds
- A leading international retailer in a congressional investigation concerning the impact of the pandemic on women in the workforce
- A major insurance company in congressional, state regulatory and state attorneys general investigations related to the opioid crisis
- An iconic U.S. company in congressional and related investigations concerning its pursuit of a loan from the U.S. International Development Finance Corporation
- An iconic MLB team in congressional investigations concerning stadium financing, as well as related state legislative inquiries
- An independent living facility operator in a congressional investigation related to veterans’ benefits and a related state attorney general investigation
- Multiple banks, hedge funds and fund managers in congressional investigations involving mortgage and lending practices, physical commodity holdings and trading practices