Brooks Allen focuses his practice on reviews by the Committee on Foreign Investment in the United States (CFIUS) and international trade issues, as well as international arbitration and other aspects of national security trade and export control issues.


Mr. Allen draws on experience in both private practice and government, most recently as assistant general counsel in the Office of the U.S. Trade Representative (USTR).

Within CFIUS, Mr. Allen served as lead counsel for USTR and participated in deliberations and decision-making in hundreds of cases. He also represented USTR in drafting regulations implementing the Foreign Investment Risk Review Modernization Act of 2018 (FIRRMA) legislation, which transformed CFIUS’s procedures and mandate.

Mr. Allen played a leading role in USTR’s investigation of the acts, practices and policies of China related to technology transfer, intellectual property and innovation. He helped author USTR’s Section 301 report, negotiated the Phase One trade agreement with China and chaired a subcommittee focusing on the implementation of China’s technology transfer commitments under the trade agreement. In addition, Mr. Allen acted as lead counsel negotiating the investment and state-owned enterprise chapters of the U.S.-Mexico-Canada Agreement.

Mr. Allen has extensive experience in international dispute resolution. He has represented governments and stakeholders in disputes before the World Trade Organization, and acted as counsel for clients in complex, high-stakes international arbitration matters. He is one of few practitioners to have experience both negotiating investment treaty provisions and acting as counsel in disputes arising under such treaties.

Prior to joining USTR, Mr. Allen practiced with other prominent law firms, including for seven years at a firm in Geneva, Switzerland.



  • J.D., Yale Law School, 2000 (Olin Fellow in Law and Economics)
  • M.Phil., Trinity College, Cambridge University, 1997
  • B.A., Yale University, 1996 (summa cum laude; Phi Beta Kappa)


  • District of Columbia

Brooks E. Allen

Counsel, National Security; CFIUS and Foreign Investment Reviews; International Trade