Jon Roellke focuses on antitrust, trade regulation, and other commercial litigation, primarily counseling clients in the financial services, education, and high technology sectors of the economy. He handles class action and other complex litigation, advises clients on enforcement matters before state and federal agencies, and regularly counsels on competition issues, including algorithmic pricing, artificial intelligence, ESG collaborations, refusals to deal, distribution and franchising restraints, tying arrangements, group purchasing, exclusive dealing, joint ventures, and trade association activities . Firm clients have described Jon as “a fabulous lawyer who has been a great all-around antitrust counselor.”
Recognized, WWL: Competition, Lexology and Global Competition Review (2024)
Ranked, Antitrust: Litigation Specialists , District of Columbia, Chambers USA (2019, 2023, 2024)
Ranked, Antitrust, District of Columbia, Chambers USA (2007–2021)
Listed, Lawdragon, 500 Leading Litigators in America, Washington, DC: Antitrust, Trade Regulation and Commercial Litigation (2022, 2024, 2025)
Recommended, Antitrust: Civil litigation/class actions: defense, The Legal 500 US (2021–2024)
Recommended, Antitrust: Cartel, The Legal 500 US (2012–2014, 2016, 2019–2021, 2024)
Recommended, Antitrust: Merger control, The Legal 500 US (2020, 2021)
Recommended, Dispute resolution: Financial services litigation, The Legal 500 US (2019)
Member, Practice Group of the Year, Competition, Law360 (2017–2021)
Recognized, US News & World Report and Best Lawyers 2017 Practice Group of the Year for Antitrust Law
Advisor, Georgetown University Law Center National Trial Team (1991–1996)
Member, American Bar Association, Antitrust and Commercial Litigation Sections
Member, American Bar Association, Financial Services Committee, Antitrust Section
Member, District of Columbia Bar Association, Antitrust and Litigation Sections