Cleary Gottlieb Steen & Hamilton

Mark W. Nelson is a partner based in Cleary Gottlieb’s Washington, D.C. office. His practice focuses on global antitrust matters, with an emphasis on merger cases and U.S. civil litigation. His U.S. practice includes extensive merger work and antitrust counseling, and litigation experience in both civil and criminal matters, as well as in FTC administrative proceedings. Mark’s global practice involves merger cases before the EC Commission and national authorities throughout Europe, Asia, and South America, as well as defending actions involving alleged restraints of trade and abuses of dominant position in EU proceedings. He has also been actively involved in litigation, investigations, and counseling in matters involving the intersection of antitrust and intellectual property law, in particular in the context of patent pools and standards-setting. 

Mr. Nelson joined the firm in 1993 and became a partner in 2002. He was resident in the Brussels office for three years. Mr. Nelson is part of the leadership of the ABA’s Antitrust Section, as Vice-Chair of the Economics Committee, and was on the Editorial Board for the most recent release of the ABA’s antitrust treatise, Antitrust Law Developments. He has written articles and contributed to a variety of publications, including Global Competition Review, Competition Law of the European Community, Antitrust Law Developments, European Merger Control Law (chapter on U.S. merger control), and International Computer Law. He is also a frequent speaker on antitrust law, including on the intersection of antitrust and intellectual property law, the merger review process, and compliance training programs.

Mr. Nelson is a member of the Bars in New York and the District of Columbia.

Mr. Nelson received a J.D. degree from Harvard Law School in 1992 and an undergraduate degree from Cornell University in 1989. Prior to joining Cleary Gottlieb, he served as a law clerk to Judge Andrew J. Kleinfeld of the U.S. Court of Appeals for the Ninth Circuit.