Julien Grosslerner

Céline Moille is a top attorney recognized by Best Lawyers in the practice area(s) of Regulatory Practice. Céline, who practices law in Paris, France, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Céline is held by other top lawyers in the same geographic and legal practice area.

Quentin de Margerie’s practice focuses on white collar crime and complex domestic and cross-border litigation, particularly with regard to corporate, securities and commercial law, M&A transactions, joint-ventures, directors’ liability, compliance and enforcement matters. He represents clients in all stages of their disputes, and has close to 10 years of experience as a trial lawyer before French civil, commercial and criminal courts as well as regulatory authorities. Quentin ...

Ana Vermal is a partner in the Litigation Department and co-head of the firm’s International Arbitration Group. Ana Vermal is a seasoned quadrilingual lawyer with extensive experience in both common law and civil law. With over 20 years of experience, she represents corporations from around the world on complex arbitrations arising from cross-border business transactions including acquisitions, joint ventures, distribution and licensing agreements. Ana handles arbitral proceedings under...

Géraldine Machinet is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Géraldine, who practices law in Paris, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Géraldine is held by other top lawyers in the same geographic and legal practice area.

Manuel WINGERT is a partner within the "Distressed companies - Restructuring" Department. A specialist in companies in difficulty, he works on the prevention and management of crisis situations, whether for preventative (ad hoc authorization, conciliation) or collective insolvency proceedings (safeguarding, recovery, liquidation, etc.). His expertise lies in the law applicable to companies in difficulty, directors’ liability, bonds, commercial contracts, leases, recovery, competition, c...

Gaëlle MERLIER is co-head of the Life Sciences Department. Gaëlle’s expertise spans advisory work on regulatory and contractual matters as well as the management of complex, serial litigation in commercial matters and health product liability. She also assists her clients during criminal investigations and in their dealings with the health authorities (particularly in the context of ANSM, DGCCRF, DDPP inspections, etc.). Furthermore, Gaëlle advises her clients on mergers-...

Member of the UGGC Avocats’ Restructuring team for more than 15 years, Marine Simonnot joined the firm as a trainee lawyer before becoming an associate, consultant and then partner in 2020. She advises clients on all aspects of insolvency law, from the prevention of difficulties to their treatment in the context of collective proceedings, both as counsel and in litigation. Marine supports companies of all sizes, their managers and/or shareholders, investment funds, creditors, legal repr...

Stéphane Letranchant is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Stéphane, who practices law in Paris, France, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stéphane is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/delaunay-bertrand/ .

Julien Mayeras is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Julien, who practices law in Paris, France, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julien is held by other top lawyers in the same geographic and legal practice area.