Thomas Dillickrath is senior counsel in the Antitrust and Competition Practice Group in the firm’s Washington, D.C. office.

Areas of Practice

Tom focuses on antitrust litigation and merger investigations. Prior to joining the firm, he served as Deputy Chief Trial Counsel at the Federal Trade Commission’s (FTC's) Bureau of Competition. During his time at the FTC, Tom litigated antitrust cases brought by the FTC involving mergers and acquisitions and other business practices affecting U.S. consumers. In particular, he was lead trial counsel in the agency’s successful federal court litigations blocking the Wilhelmsen-Drew Marine and Sanford-Mid Dakota Clinic mergers, as well as playing significant roles in the agency’s cases against 1-800 Contacts and Schein/Benco/Patterson in the FTC’s administrative court. Tom also was the lead trial attorney on several merger cases where the parties abandoned the transaction prior to trial, including DraftKings-FanDuel.

Prior to joining the FTC, Tom was a partner in the antitrust practice groups at two international law firms, where he worked with clients and competition agencies globally on a wide variety of high profile antitrust matters, from litigation and appeals to merger clearances and other government investigations. In mergers and investigations, he represented clients before domestic and foreign competition agencies and across a wide band of industries, including oil and gas, chemicals, consumer goods, airlines, high tech and telecommunications.

Tom advocates for clients before U.S. and foreign courts and competition agencies across the globe, including investigations and third-party matters. He has also represented clients in investigations of possible cartel and bid-rigging activities.

Tom also works with clients to prevent them from going to court. He conducts internal antitrust audits and investigations for multinational corporations, and has developed antitrust compliance programs and presented antitrust training for clients in the U.S. and abroad.



Federal Trade Commission Matters

  • Sanford Health/Mid Dakota Clinic (D. N.D. Western Div.): Lead trial counsel in obtaining preliminary injunction of anticompetitive merger in physician services market. Preliminary injunction granted, currently on appeal.
  • FTC v. Wilh. Wilhelmsen et al (D.D.C.): Lead trial counsel in obtaining preliminary injunction of anticompetitive merger in marine chemicals market. Preliminary injunction granted, parties abandoned transaction.
  • FanDuel/Draft Kings (D.D.C): Lead trial counsel in seeking preliminary injunction of anticompetitive merger in the daily fantasy sports market; parties abandoned transaction prior to trial.
  • In re 1800 Contacts (D.D.C): Played significant role in administrative trial including cross-examination of respondent’s survey expert, with decision in favor of FTC, on appeal.
  • Benco/Schein/Patterson (D.D.C): Cross-examination of respondent’s expert economist and direct examination of several fact witnesses in administrative trial, with decision in favor of FTC.

Private Practice Mergers

  • Representing clients in high-profile mergers before U.S. agencies (DOJ, FTC and FCC) across a wide spectrum of industries.
  • Representing third-parties on matters involving mergers.
  • Representing clients in high-profile mergers before foreign competition authorities (European Commission, India, China, Mexico, Brazil, Taiwan, Korea, UK and others), including in-person advocacy.
  • Leading competition oversight of integration projects involving significant mergers in chemicals and energy sectors.

Private Practice Litigation

  • Representing clients in high-stakes litigation before federal and state courts, federal and state agencies and foreign competition authorities.
  • Representative engagements include several major multinational technology companies; multiple international chemical companies; and consumer good companies.

Private Practice Counseling

  • Advising clients across a broad spectrum of industries as to antitrust implications of existing and potential business practices.
  • Developing and implementing antitrust compliance programs.
  • Undertaking internal investigations to identify potential areas of antitrust risk.
  • Developing and presenting antitrust training programs from C-suite executives to field sales personnel, in the U.S. and around the world.



  • "The Best of All Possible Tests," The Price Point, Winter 2014
  • Co-Author, "Blind Umps and Blown Calls: The Troubling Decision to Ignore 'Arguably Manipulable' Evidence in United States v. Bazaarvoice," Competition Policy International, March 1, 2014
  • Co-Author, "Letting the Cat Out of the Box: Noerr-Pennington Immunity and Consent Decrees," Competition Policy International, January 14, 2014
  • Co-Author, "Injunctive Relief and the Noerr-Pennington Doctrine: The Search for Clarity on a Muddied Pitch," Competition Policy International, March 19, 2013 (nominated as Best of 2013 and republished December 30, 2013
  • Co-Author, "Standard Essential Patents: The Intersection of IP Rights, Competition and Collaboratively Set Standards in the U.S. and Europe," Competition Counselor Newsletter, Fall 2012
  • "Trends in Private Federal Antitrust Litigation," Global Competition Review, 2010 
  • Co-Author, "Type 1 Error and Uncertainty: Holding the Antitrust Enforcement Pendulum Steady," Global Competition Policy, November 12, 2009

Antitrust Law Blog Posts

Labor & Employment Law Blog

Media Mentions

Speaking Engagements

  • "Looking at the Future: FTC in the Biden Administration," OliveTree Financial, Webinar, February 19, 2021
  • "Playing the Game: China Investigates Mergers in the E-SPorts Industry," US-China Council, Webinar, January 21, 2021
  • "Antitrust Counseling on Competitor Collaborations and Price Gouging during COVID-19," American Bar Association, Antitrust Section, April 1, 2020 
  • "Federal Civil Enforcement : FTC Enforcement Authority: Recent Challenges," American Bar Association, Antitrust Section, March 18, 2020
  • GCR Live Pharmaceuticals Forum, Washington D.C., February 28, 2019
  • "Lessons from Bazaarvoice," (with former Deputy Attorney General Fiona Scott Morton), New York Bar Association, May 21, 2014
  • "Recent Developments at the IP/Antitrust Intersection," Taipei, Seoul and Tokyo, May 2014
  • "Re-writing the Rules: Civil Procedure and E-Discovery Principles," ABA Masters Conference, August 2011

Digital Media


J.D., University of Miami, 2002, summa cum laude, Order of the Coif, Dean's Scholar, Articles and Comments Editor, University of Miami Law Review

M.A., American History, George Mason University, 2011, Award - Outstanding History Graduate Student, 2009

B.A., Florida Atlantic University, 1998

University of Edinburgh Post-Graduate Diploma in Philosophy (with honors), 2019


  • Judicial Extern to Federal Magistrate Judge Stephen Brown of the U.S. District Court for the Southern District of Florida, 2001


  • District of Columbia
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