Debevoise & Plimpton LLP

David A. O’Neil is a litigation partner and member of the firm’s White Collar & Regulatory Defense Group.

His practice focuses on white collar criminal defense, internal investigations, anti-corruption and FCPA defense and congressional investigations.

Mr. O’Neil has represented clients in high-stakes matters involving significant legal, political and public relations implications. His experience spans criminal investigations by the U.S. Department of Justice and foreign law enforcement bodies; sensitive, confidential internal investigations for high-profile companies; investigations by the United States Congress; litigation brought by state Attorneys General; and class action lawsuits.