Law Society of England & Wales
New York City Bar (Chair and Past Secretary of Legal History Committee, Antitrust & Trade Regulation Committee)
American Bar Association (Past Advocacy Vice Chair of International Practice Committee, General Practice Section)
Institute for Transnational Arbitration (Advisory Board Member)
USCIB Arbitration (Amicus Curiae Subcommittee)
London Court of International Arbitration
American Society for Legal History (Associate H-Law Editor)
Friends of King's College London Association USA (Director)