Thomas D.York (Tom)


Dallas + 1.214.969.4523

Tom York is a seasoned antitrust lawyer, focusing on antitrust litigation, merger review, and civil and criminal antitrust investigations. He has experience before the Antitrust Division of the United States Department of Justice, the Federal Trade Commission, state attorneys general, and international antitrust enforcers. Tom also regularly counsels on antitrust issues, such as competitor collaborations, distribution, licensing, pricing, and single-firm conduct.

Tom works across a range of industries, including aviation, consumer products, emerging technology, health care, pharmaceuticals, oil and gas, and sports. Representative clients include American Airlines, Chevron, Conagra Brands, General Electric, Procter & Gamble, and Texas Instruments.

Tom currently serves in leadership positions in the American Bar Association Section of Antitrust Law, the State Bar of Texas Antitrust & Business Litigation Section, and the Dallas Bar Association Antitrust & Trade Regulation Section. He previously served as co-chair of the Antitrust Law Committee of the ABA's Young Lawyer Division. Tom has written extensively for these and other organizations, including as a contributing author to several ABA books and as a publishing author in Antitrust Magazine, The Antitrust Source, and others. He regularly presents on antitrust compliance, merger strategy, antitrust litigation, and similar topics.

Tom maintains an active pro bono practice. Recent examples include successfully challenging the constitutionality of two sentences of life without parole imposed on a minor and pursuing consumer protection litigation on behalf of active duty members of the military. He previously worked for four years in Jones Day's Washington Office.


  • Bitmain obtains dismissal of all claims in antitrust suit alleging Bitcoin Cash cryptocurrency market manipulationJones Day successfully defended Bitmain Technologies Ltd., Bitmain, Inc., and Bitmain Technologies’ co-founder and former chairperson Jihan Wu against claims that they conspired with other companies and software developers to manipulate the Bitcoin Cash cryptocurrency market.
  • GE sells GE Industrial Solutions to ABB for $2.6 billionJones Day served as antitrust counsel to General Electric Company in the $2.6 billion sale of GE Industrial Solutions to ABB.
  • Jones Day wins resentencing for juvenile sentenced to life without paroleA team from Jones Day Dallas and Jones Day Washington prevailed in challenging the constitutionality of two sentences of life without parole imposed on a minor.
  • HeidelbergCement and Lehigh Hanson acquire Italcementi for $4.1 billionJones Day secured antitrust approval from the U.S. Federal Trade Commission for the $4.1 billion acquisition by HeidelbergCement AG and its U.S. subsidiary Lehigh Hanson, Inc. of Italcementi S.p.A. and its subsidiary Essroc.
  • Air China Limited and Air China Cargo resolve multidistrict, class action litigation related to air cargo shipmentsJones Day clients Air China Limited and Air China Cargo successfully resolved multidistrict, class action litigation brought by customers alleging an international conspiracy to impose fuel surcharges on air cargo shipments.
  • Newell Rubbermaid secures antitrust clearance for $215 million sale of Endicia to Stamps.comJones Day represented Newell Rubbermaid Incorporated in securing antitrust clearance from the U.S. Department of Justice for the $215 million sale of Newell's Endicia subsidiary to
  • CommScope acquires TE Connectivity's network business for $3 billionJones Day acted as worldwide antitrust counsel to CommScope Holding Company, Inc., a global network infrastructure and connectivity provider based in North Carolina, on its $3 billion acquisition of the Telecom, Enterprise and Wireless business of Switzerland-based electronics company TE Connectivity Ltd.
  • ABB divests Meyer Steel Structures business of Thomas & Betts to Trinity Industries for $600 millionJones Day advised ABB Ltd, a leading power and automation technology group, in its sale of the Meyer Steel Structures business of ABB's Thomas & Betts subsidiary to Trinity Industries, Inc. in an all cash transaction for approximately $600 million.
  • ABB completes sale of Thomas & Betts HVAC business to Nortek for $260 millionJones Day advised ABB Ltd. in its all cash sale of Thomas & Betts' heating, ventilation, and air conditioning business to Nortek, Inc. for $260 million.
  • American Airlines merges with US Airways in $11 billion dealJones Day represented American Airlines in the antitrust investigation and federal court challenge to its $11 billion merger with US Airways, which closed after the Department of Justice and State attorneys general agreed to settle their lawsuit that sought to block the deal.
  • Hertz wins antitrust approval for long-fought acquisition of Dollar ThriftyJones Day secured antitrust approval from the U.S. Federal Trade Commission (FTC) for the $2.3 billion acquisition by U.S. car rental company Hertz Global Holdings, Inc. of Dollar Thrifty Automotive Group.
  • Warner Music Group intervenes in Universal's acquisition of EMI's recording business and Sony's acquisition of EMI's publishing businessJones Day served as lead counsel to Warner Music Group as a third-party intervenor in Universal's acquisition of EMI's recording business for €1.4 billion, as well as in the acquisition of EMI's publishing business by a consortium involving the Sony Corporation for total consideration of €1.6 billion.
  • Yale-New Haven Hospital obtains antitrust approval for proposed Saint Raphael's acquisitionJones Day represented Yale-New Haven Hospital ("YNHH") in connection with all antitrust matters related to its acquisition of a competing hospital, the Hospital of Saint Raphael's in New Haven, Connecticut.
  • ABB receives antitrust clearance for $3.9 billion acquisition of Thomas & BettsJones Day represented ABB Ltd. as antitrust counsel in connection with its $3.9 billion acquisition of Thomas & Betts Corporation.
  • SFN Group acquired by Randstad for $770 millionJones Day advised SFN Group, Inc., a leading strategic workforce solutions company, in its acquisition by Randstad Holding nv for $770 million.
  • ABB receives antitrust clearance for $4.2 billion acquisition of Baldor ElectricJones Day obtained antitrust clearance in the U.S. after a Second Request investigation by the Department of Justice on behalf of ABB Ltd. in connection with its $4.2 billion acquisition of Baldor Electric Company.
  • HomeAway prevails in tax dispute with Palm Beach County Tax CollectorJones Day defended HomeAway, Inc. in a Florida state court declaratory judgment action seeking to hold the travel and vacation home rental website liable for tourist development taxes.
  • Speaking Engagements