Claire Toumieux

Laurent Ayache is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Public Law and Regulatory Practice. Laurent, who practices law in Paris, France, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laurent is held by other top lawyers in the same geographic and legal practice area.

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.

Pierre-Marie Boya is a Private Equity M&A partner and a member of the Firm’s Private Capital industry group. Pierre-Marie’s practice focuses primarily on highly regulated industries, including technology and healthcare, as well as energy and infrastructure. His clients include private equity sponsors, venture capital firms, and public and private companies, which he supports throughout the full life cycle of their investments. Pierre-Marie advises clients on a wide range of co...

Fabrice Perruchot is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Fabrice, who practices law in Paris, France, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fabrice is held by other top lawyers in the same geographic and legal practice area.

Michel Sapin is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice. Michel, 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 Michel is held by other top lawyers in the same geographic and legal practice area.

With more than 15 years of experience appearing before U.S., E.U., and French regulators, Sara has consistently guided clients through the intricacies of domestic and cross-border regulatory matters. Her practice encompasses advisory services, implementation, investigations, and disputes—most notably in the financial services and banking, health care, technology and new media, and telecommunications sectors.

For more information, please visit www.gibsondunn.com/lawyer/grinspan-bernard/ .

Guillaume De Saint Sernin is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits Law. Guillaume, 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 Guillaume is held by other top lawyers in the same geographic and legal practice area.

Serge Lederman intervenes as counsel as well as in litigation in industrial property law in sectors as diverse as fashion, design and media and the food industry, and literary and artistic property law in the areas of art, media and communication. Recognised by his clients for his analysis of litigious matters and the stakes at hand, as well as his sharp grasp of litigious strategies, Serge Lederman advises companies and institutions on an international level and on domestic operations. He is...

Partner of BG2V since 2017 - Member of the Paris Bar since 2001​ ​Experience : BG2V, Redlink, Nixon Peadbody, Taylor Wessing France, CMS Bureau Francis Lefebvre.​ ​ Education : DESS in Notarial Law, University of Caen, DESS in Tax and Commercial Law, University of Caen.​ ​Practice areas : Jean-Sébastien assists French and international groups in the media, new technologies and property sectors in managing their tax issues, as well as senior executives in organizing their assets and tra...