Background
Accomplished antitrust attorney. Trusted advisor on merger review and compliance with the Hart-Scott-Rodino Act. Deep understanding of competition policy, emerging technologies and interagency coordination.
An experienced antitrust lawyer across government and private practice, Esther Pyon brings a decade of experience navigating complex antitrust issues. She represents clients before the DOJ and FTC in merger reviews and antitrust investigations involving novel legal issues, securing regulatory approvals for complex transactions. Esther advises companies across sectors—including tech, healthcare, telecom and private equity—on antitrust and HSR compliance, merger control and legislative developments.
As an attorney advisor at the U.S. Department of Justice Antitrust Division, Esther worked on merger policy, interagency enforcement and regulatory reform. She played a key role in developing the 2023 Merger Guidelines and the 2024 Premerger Notification Rule and Regulations. Esther also represented DOJ in cross-government working groups on artificial intelligence, telecommunications and internet policy, and regularly trained attorneys and economists across federal agencies.
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Credentials
EDUCATION
M.A., 2016, American University, School of International Service
J.D., 2015, American University, Washington College of Law, cum laude
B.A., 2009, University of Michigan
ADMISSIONS
District of Columbia
New York
