Jeffrey Knox

Jeff Knox, former head of the U.S. DOJ Fraud Section, is Co-Managing Partner of Simpson Thacher’s Washington, D.C. office and Global Co-Head of the Firm’s Government and Internal Investigations Practice. He represents multinational corporations and independent board committees in high-stakes investigations by the DOJ, SEC, State Attorneys General, and other federal and state enforcement regulators. He has advised some of the world’s leading companies in the financial services, private equity, energy, life sciences, technology and cryptocurrency industries in navigating criminal and civil investigations relating to the federal securities and commodities laws, anti-corruption and anti-money laundering statutes, the False Claims Act, antitrust laws, and economic sanctions and other trade control regulations. Jeff represents companies subject to government and court-mandated monitorships, and has served as a government-appointed independent compliance consultant. Prior to joining the Firm, Jeff was an accomplished federal prosecutor, serving as the Chief of the DOJ’s Fraud Section in Washington, D.C., and the Chief of the National Security Section of the U.S. Attorney’s Office for the Eastern District of New York.

Simpson Thacher (1999-2003; 2014-present); Department of Justice (2003-2014)