For over 19 years, Marie has acted as counsel for multinational corporations, governments, and individuals on a wide range of international arbitration proceedings pursuant to the major institutional rules (including LCIA, ICC) as well as ad-hoc arbitrations under UNCITRAL Rules. She also sits as a sole arbitrator, panel member and chair. Marie is a member of the LCIA Court and the Vice-President of the LCIA European Users' Council. She is also a member of the ICC UK Arbitration and ADR Committee, and ICC UK Selection Subcommittee.