

Jon B. Jacobs
- Washington, D.C.
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For 27 years, Jon was a trial attorney with the U.S. Department of Justice, Antitrust Division, where he investigated and tried civil and criminal cases.
Antitrust litigator and trial lawyer Jon Jacobs represents corporate and individual clients in civil and criminal antitrust investigations and cases. He has tried civil cases involving mergers and acquisitions, monopolization, exclusive dealing, and information exchanges. Jon has also led grand jury investigations and tried criminal cases involving price fixing, bid rigging, and customer and market allocation. He has litigated cases in many industries, with a focus on the healthcare and health insurance markets.
In a landmark case, Jon was the lead trial attorney in United States v. Anthem (D.D.C. 2016), the government's successful challenge of Anthem's proposed $54 billion merger with Cigna. Jon led a large team of lawyers under an expedited schedule, with trial starting only four months after the complaint was filed.
Jon maintains an active pro bono practice, representing immigrants in removal proceedings. He serves on the Legal Advisory Committee of the Amica Center for Immigrant Rights.
Areas of focus
Education & Credentials
Education
- University of Michigan Law School, J.D., 1986
- Michigan State University, B.A., with high honors, 1982
Bar and Court Admissions
-
District of Columbia
- Supreme Court of the United States
- U.S. Court of Appeals for the Fourth Circuit
- U.S. Court of Appeals for the Fifth Circuit
- U.S. Court of Appeals for the District of Columbia Circuit
- U.S. District Court for the District of Columbia
- U.S. District Court for the District of Maryland
- U.S. District Court for the District of Puerto Rico
- U.S. District Court for the Eastern District of Wisconsin
Related Employment
- U.S. Department of Justice, Antitrust Division, Washington, D.C., Trial Attorney 1990-2017
- U.S. Attorney's Office, Eastern District of Virginia, Alexandria, VA, Special Assistant U.S. Attorney, 1999
- Pepper, Hamilton & Scheetz, Washington, D.C., Associate, 1986-1990
Professional Recognition
Attorney General’s Distinguished Service Award, 2012
Hugh Morrison Award for long-term achievement by outstanding career litigator, 2011
Listed in Best Lawyers in America: Antitrust Law, 2024-2025
Impact
Professional Leadership
- Amica Center for Immigrant Rights Coalition Legal Advisory Committee, Member
- Washington, D.C. Office Pro Bono Committee, Co-Chair, October 2018-June 2023
- American Bar Association, Antitrust Section, Member
- American Bar Association, Antitrust Section, Cartel and Criminal Practice Committee, Vice Chair, October 2018-June 2023
- National Institute of Trial Advocacy, Instructor
- Federal Bar Association Thurgood Marshall Moot Court Competition, Judge
- U.S. Department of Justice National Advocacy Center, Instructor
- Washington, D.C. Office Pro Bono Committee, Co-Chair, October 2018-June 2023
- American Bar Association, Antitrust Section, Member
- American Bar Association, Antitrust Section, Cartel and Criminal Practice Committee, Vice Chair, October 2018-June 2023
- National Institute of Trial Advocacy, Instructor
- U.S. Department of Justice National Advocacy Center, Instructor