Antitrust: Cartel
USA - Nationwide
13 years ranked
LAWYER PROFILE
John Terzaken
USA 2026
Ranked in 2 practice areas
About
Provided by T&T Law Group PLLC
USA
Practice Areas
Global Co-Chair of the Firm’s Antitrust and Trade Regulation Practice, John represents clients involved in government enforcement of antitrust, fraud and other white collar violations, as well as related follow-on civil litigation. His experience spans market sector investigations and litigation in all major industries. John previously served as the Director of Criminal Enforcement for the Antitrust Division of the U.S. Department of Justice, where he oversaw the Division’s criminal enforcement and litigation nationwide. He has earned awards of distinction from the Attorney General of the United States and the Assistant Attorney General for the Antitrust Division. In addition to authoring an annual Global Cartel Enforcement Report published by Simpson Thacher, he regularly writes and speaks on antitrust matters for industry publications and events, including in his role as a member of the ABA’s International Cartel Task Force.
Career
Partner, Simpson Thacher. Former Director of Criminal Enforcement in Department of Justice’s Antitrust Division.
Personal
J.D., University of Virginia School of Law, Editorial Board, Virginia Law Review; B.A., American University, magna cum laude.
Chambers Review
Provided by Chambers
Chambers Guide to the USA
Antitrust: Cartel - USA - Nationwide
Band 1
Individual Editorial
John Terzaken of T&T Law Group is revered for his excellent cartel practice. He regularly represents clients in government enforcement actions and follow-on litigation.
Antitrust - District of Columbia
Band 2
Individual Editorial
John Terzaken of T&T Law Group PLLC has a broad antitrust practice with particular competence in agency enforcement actions. He deftly manages cartel investigations and follow-on litigation.
Strengths
Provided by Chambers
John provides practical, concise advice. He is a valuable antitrust litigator.
Antitrust: CartelChambers Guide to the USAJohn is a trusted lawyer and a great negotiator who is very responsive and accessible. He knows the subject matter very well and gets good results under difficult circumstances.
Antitrust: CartelChambers Guide to the USAJohn has deep knowledge of global antitrust law and works seamlessly with others. He negotiates favorable solutions and brings the full package of expertise.
Antitrust: CartelChambers Guide to the USAJohn has deep knowledge of global antitrust law and works seamlessly with others. He negotiates favorable solutions and brings the full package of expertise.
AntitrustChambers Guide to the USAJohn provides practical, concise advice. He is a valuable antitrust litigator.
AntitrustChambers Guide to the USAJohn is a trusted lawyer and a great negotiator who is very responsive and accessible. He knows the subject matter very well and gets good results under difficult circumstances.
AntitrustChambers Guide to the USA
Ranked Individuals at T&T Law Group PLLC (2)
District of Columbia
John Terzaken
Antitrust
View profile
USA - Nationwide
John Terzaken
Antitrust: Cartel
View profile
What success is built on
Chambers is the leading data and intelligence partner for the legal sector.