John Hamill > DLA Piper LLP (US) > Chicago, United States > Lawyer Profile

DLA Piper LLP (US)‘ s cartel team offers a globally coordinated approach, advising multinational clients before regulators and negotiating resolutions, with extensive experience in handling leniency and amnesty applications, as well as assisting on litigation defense. The team is well-versed in representing companies in competition investigations and enforcement actions worldwide, including those led by authorities such as the DOJ, FTC, European Commission, and others across key international jurisdictions. John Hamill, based in Chicago, leads the practice with expertise in highly-regulated industries such as healthcare, insurance, and life sciences. Washington DC-based Carsten Reichel regularly represents corporations and individuals in government antitrust and other white-collar investigations and follow-on civil litigation. Matthew Jacobs departed the team in February 2025 to Baker Botts L.L.P..

DLA Piper LLP (US) provides effective defenses for clients in high-stakes class actions and bet-the-company litigation. The team has recently enhanced its capabilities with several key hires, bringing substantial experience from the FTC and state Attorneys General offices. John Hamill, based in Chicago, leads the practice and has a track record of success in trial courts, arbitrations, and appellate courts across the U.S. In Los Angeles, John Gibson combines deep antitrust expertise with a strong focus on the technology and healthcare sectors. Brian Boyle, in Philadelphia, specializes in cases involving price-fixing, consumer protection violations, deceptive trade practices, and racketeering. In Washington, D.C., David Bamberger is highly experienced in jury trials addressing complex antitrust issues. Meanwhile, in Baltimore, David Hamilton is a key resource for clients navigating government-led civil and criminal investigations.

DLA Piper LLP (US) is active in bet-the-company litigation across a diverse range of sectors, including healthcare, life sciences, chemicals, telecoms, and insurance. The team is regularly called upon by both public and private companies for defense in class actions, RICO litigation, and antitrust and M&A disputes. Brett Ingerman in Maryland leads the US business and commercial litigation group alongside Los Angeles-based John Gibson, who has a wealth of experience in class actions. Also in LA, Angela Agrusa co-chairs the product liability, mass torts and class actions litigation group and is regularly called upon to represent clients in data breach and privacy disputes and Isabelle Ord is co-head of the class action litigation practice, as well as global co-chair of the financial services department. Chicago-based John Hamill is another name to note, alongside Mary Elizabeth Gately in Washington DC.