Fabrice Cassin

Nuno De Ayala Boaventura is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice and Mergers and Acquisitions Law. Nuno, 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 Nuno is held by other top lawyers in the same geographic and legal practice area.

Emilie Lecomte is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Emilie, who practices law in Paris, France, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emilie is held by other top lawyers in the same geographic and legal practice area.

Jérôme’s practice is focused on all aspects of international and domestic taxation and primarily on tax aspects of mergers and acquisitions, group structure reorganizations and private equity transactions.

Pierre-Jacques Castanet is the managing partner of In Extenso Avocats Ile de France, a firm that provides advice in the fields of labor and employment and tax law. He runs the firm’s labor and employment law department with his partner, Stanislas Dublineau. He specialises in employment and social welfare law. Before joining In Extenso Avocats, Pierre-Jacques was a partner at IDAvocats and Idrac & Associés. With more than 30 years’ experience at the Paris Bar, Pierre-Jac...

Eric Bernard is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Eric, 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 Eric is held by other top lawyers in the same geographic and legal practice area.

Katharina Berbett is a top attorney recognized by Best Lawyers in the practice area(s) of Information Technology Law. Katharina, 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 Katharina 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...

Charles-Emmanuel Prieur, partner at UGGC Avocats since 2006, spent his entire professional career at UGGC. He joined as an intern and immediately worked in the corporate law department. Charles-Emmanuel is a leader in the fields of M&A and private equity both in France and abroad. He advises industrial and commercial operators for their take over transactions and asset purchase operations. He assists investment funds or company officers with their venture capital, investment capital or le...

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-...

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...