​Grégory Marson is an associate in the Paris office of Gibson, Dunn & Crutcher, where he serves as a member of the firm’s Administrative Law and Regulatory, Litigation, Competition and Antitrust​ and Goverment Contracts Practice Groups.

Specialized in public economic law, his practice is focused on issues relating to state aid rules, competition law, government contracts, freedom of movement, energy related issues as well as infrastructure law. He holds particular expertise in matters regarding the rail, energy, banking and insurance sectors. He also advises companies in actions brought before the European Commission and regulatory authorities.

Grégory Marson has extensive experience representing and assisting both state-owned entities (such as the French State and governmental bodies) and private entities in their development, by providing solutions to compliance issues under various regulations.

In addition, he has provided assistance in administrative proceedings before all the administrative courts acting as counsel for both claimants and defendants.

Grégory has had experience in priority preliminary proceedings on the issue of constitutionality before the French Constitutional Council.

Grégory Marson is also a lecturer in administrative law and a member of the Research Center on Public Law at the University of Paris Ouest Nanterre La Defense. Grégory has a Phd in public economic law and authored several articles on administrative law and competition law issues in legal journals.