Veronica N. Onyema
- Washington, D.C.
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Veronica is a trusted leader in antitrust enforcement and advocacy with nearly 20 years of experience across private practice and government service.
Veronica Onyema is highly skilled in antitrust, competition law, commercial litigation, and government contracts. She has a proven record in trial strategy, case development, executive witness examinations, and drafting substantive briefs in landmark enforcement actions.
Prior to joining Perkins Coie, Veronica was a leader in the Antitrust Division of the DOJ, where she served as an assistant chief in the Defense, Industrials, and Aerospace Section. In that role, she oversaw complex investigations, led enforcement actions, and advised Division leadership on strategic matters. Veronica was also a go-to litigator in the Division, taking on key roles in high-profile enforcement actions. Her work substantially contributed to landmark cases in technology, financial services, and transportation, among others.
Before transitioning to the Antitrust Division, Veronica was a litigator at the Civil Division of the DOJ, serving as counsel of record for the United States in government contract litigation before the U.S. Court of Federal Claims, and managing all phases of litigation and trial advocacy. In addition, she represented the United States in appellate matters before the U.S. Court of Appeals for the Federal Circuit, handling appeals from a range of federal boards and courts.
Veronica’s distinguished public service has been recognized with multiple Assistant Attorney General awards.
Areas of focus
Education & Credentials
Education
- Cornell Law School, J.D., General Editor, Cornell Journal of Law and Public Policy, 2006
- University of Notre Dame, B.A., Political Science, Computer Applications, magna cum laude, 2003
Bar and Court Admissions
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District of Columbia
Related Employment
- U.S. Department of Justice, Antitrust Division, Washington, D.C., Trial Attorney, 2019-2014; Assistant Chief, 2024-2025
- U.S. Department of Justice, Civil Division, Washington, D.C., Trial Attorney, 2013-2019
- Mayer Brown LLP, Washington, D.C., Litigation Associate, 2011-2013
- Howrey LLP, Washington, D.C., Antitrust Associate, 2006-2011
- New York County District Attorney's Office, New York, NY, Legal Extern, 2005