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Aimee E. DeFilippo


(T) +1.202.879.7631
(F) +1.202.626.1700


  • George Mason University (J.D. magna cum laude 2006; Associate Editor, George Mason Law Review); Florida Southern College (B.A. in Political Science summa cum laude 1999)

Bar Admissions

  • District of Columbia and Virginia

Government Service

  • Legislative Correspondent to U.S. Rep. John E. Peterson (2000); Intern, Office of Family Assistance, U.S. Department of Health & Human Services (1999)

Aimee DeFilippo has more than a decade of experience practicing antitrust law, focusing on mergers and acquisitions, counseling, compliance, and nonmerger investigations. She has represented clients before the U.S. Department of Justice, Federal Trade Commission, and state attorneys general and has experience across numerous industries including health care, pharmaceuticals, power, consumer products, agriculture, airlines, communications, and more. Aimee has worked to secure clearances in numerous complex transactions and has steered clients through high-profile government investigations. She also regularly advises clients on antitrust issues involving competitor collaborations, distribution and pricing arrangements, and information sharing. Representative clients include General Electric, Procter & Gamble, Centura Health, Eastman Chemical, Cleveland Clinic, and Yale New Haven Health System.

In addition, Aimee gained substantial experience practicing as an in-house lawyer while on a yearlong secondment with the competition law group of General Electric, where she worked on a wide variety of transactional, counseling, and compliance matters across the globe. She also worked in the legal department of a major U.S. corporation throughout her time in law school.

Aimee is a member of the ABA's Section of Antitrust Law and serves as a vice chair in the Antitrust Practice Group of the American Health Lawyers Association. She has written extensively for both organizations and has published articles in CPI Antitrust Chronicle, Bloomberg BNA, The Antitrust Source, The Threshold, and others. Aimee is also a frequent speaker on antitrust issues, having appeared as a panelist in several ABA and AHLA webinars and in-person programs.

Honors & Distinctions

  • The Legal 500 US (2018) — recommended for merger control and cartels

    Who's Who Legal: Competition — Future Leaders (2017)
Aimee DeFilippo