Bruno Leroy

Bertrand Barrier has acquired a solid experience in Mergers & Acquisitions and assists international clients in their investment projects. With 20 years of international experience, Bertrand is also involved in the development of large-scale projects and infrastructures, mainly in developing countries, and has developed significant experience in the field of renewable energy.

Florent Prunet advises and assists businesses in various economic sectors with regard to anti-competitive practices (specialised advice and litigation, compensation litigation, visits and seizures, etc.), merger control (French and European), distribution and consumption (networks, distribution and representation agreements, advertising, commercial practices) and generally defends them in all their economic litigation cases.

A specialist in digital law, Éric Le Quellenec has led several large-scale GDPR compliance and digital transformation programs for major French and international corporations. He advises both software providers and end-users on AI projects, combining risk management with accountability in usage—most tools used in the HR field being classified as high-risk under current regulations. For large-scale projects such as HRIS or talent and career management systems, he has taken on role...

Nicolas Mancret assists his clients in the development and implementation of their social policy. Over the course of his career, he has developed expertise in both advisory and litigation matters relating to corporate restructuring, individual and collective labor relations and the implementation of the labor policy of major French and foreign companies operating in France.

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-...

After nearly twenty years’ experience as a tax lawyer with the Paris offices of Landwell (1995-2005) and August & Debouzy as of counsel, Alfred LORTAT-JACOB joined the Paris Office of Cornet Vincent Segurel as a tax partner in October 2010.Alfred LORTAT-JACOB holds a Master's degree in public finance and taxation from the University of Panthéon-Assas.He advises companies and company groups, French and foreign, as well as their managements on various areas of tax law (in parti...

Ségolène Coiffet is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law. Ségolène, who practices law in Paris, France, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ségolène is held by other top lawyers in the same geographic and legal practice area.

Clémence Lemétais d'Ormesson is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation and Litigation. Clémence, 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 Clémence is held by other top lawyers in the same geographic and legal practice area.

Grégoire Andrieux is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Grégoire, 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 Grégoire 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/ .