Leon B. Greenfield is a partner of the WilmerHale’s Washington D.C. Office Regulatory and Government Affairs Department, and a member of the Antitrust and Competition and Defense, National Security and Government Contracts Practice Groups. He joined the firm in 1990. Leon B. Greenfield has an exceptionally wide breadth of experience representing clients in complex antitrust-related matters. He has represented clients in cutting edge Section 2 litigation and agency matters. He has secured antitrust clearance for major acquisitions, litigated cases in federal and state court and counseled clients on many types of antitrust issues. Mr. Greenfield also has broad experience in matters outside the antitrust area, including securities regulatory matters and litigation and complex business litigation.