Mr Mario Mancuso > Kirkland & Ellis LLP > Washington DC, United States > Lawyer Profile

Kirkland & Ellis LLP
1301 Pennsylvania Avenue, N.W.
Washington, D.C., 20004
United States
Mario Mancuso photo


Mario leads Kirkland’s International Trade and National Security practice. A former senior member of the President’s national security team, Mario works closely with companies, private equity sponsors, and financial institutions to identify and mitigate the international risks of operating and investing across international borders. He’s a leading advisor on national security matters, especially involving CFIUS, economic sanctions and export controls.


Former U.S. Under Secretary of Commerce, Industry and Security; Deputy Assistant Secretary of Defense; former US military officer.


Lecturer, Senior Fellow, Yale University, Jackson Institute for Global Affairs; Life Member, Council on Foreign Relations.


NYU School of Law, J.D.; Harvard University, B.A.

Lawyer Rankings

United States > Dispute resolution > International trade

The team at Kirkland & Ellis LLP places strong emphasis on cross-border investment clearance issues involving the Committee on Foreign Investment in the United States (CFIUS). Another area of focus is the US- and the international sanctions regime, and here, the team’s recent work reflects a notable strength in private equity-related matters; an area where practice co-head Mario Mancuso in Washington is a name to note. In the New York office, joint practice head Zachary Brez is a key contact for international enforcement and regulatory matters, including complex investigations with a cross-border element. Also recommended is Nick Niles, who leads on enforcement matters from the Chicago office.