Olivier Dutheillet de Lamothe

The co-head of the Paris-based team specializing in non-profit sector organizations, Lionel DEVIC has developed recognized expertise in the following specific areas : reorganizing the activities and assets (particularly property) of non-profit organizations (merger, mutualization, division into subsidiaries) incorporating complex groups, whether or not they belong to the community-oriented economy, implying the coexistence of separate legal entities (associations, non-commercial and commercia...

Philippe Dubois is a lawyer recognized by Best Lawyers in the practice areas of Insolvency and Reorganization Law and Litigation. Philippe practices law in Paris, France Best Lawyers has recognized Philippe Dubois since 2013. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Philippe Dubois is held by other lawyers.

Guillaume Kellner is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Guillaume practices law in Paris, France Best Lawyers has recognized Guillaume Kellner since 2014. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Guillaume Kellner is held by other lawyers.

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.

Frank Martin Laprade is a corporate law specialist, with a particular focus on listed companies in Paris. He has been a lecturer and researcher at the University of Paris Sud (XI) and a member of the Ansa legal committee for over 15 years. His expertise includes advising on takeover bids, issuance of securities giving access to capital, listing and delisting of companies on the stock exchange, as well as litigation (administrative sanctions, market abuse, shareholder disputes). He is also the...

Bruno Deffains is a lawyer recognized by Best Lawyers in the practice areas of Corporate Governance and Compliance Practice and Product Liability Litigation. Bruno practices law in Paris, France Best Lawyers has recognized Bruno Deffains since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Bruno Deffains is held by other lawyers.

Alexis BECQUART is co-head of the PARIS office’s Non-Profit Organizations and Social Entrepreneurship Department. He has developed recognized expertise in : legal and tax aspects of founding, reorganizing and restructuring non-profit organizations legal and tax structure of trade unions and professional bodies, on which he spends over a third of his time (articles of association, division into sectors or subsidiaries, mergers, competition regulations applicable to trade unions, etc.) le...

Before joining UGGC Avocats, Alison Leroy worked for 7 years at Carakters, then at Franklin from 2020, and recently at Bersay, where she opened the “Life Sciences, Biotech and Pharma R&D” department. Her experience covers regulatory affairs, site and production unit management, and the negotiation and management of R&D and business development contracts (collaborative research contracts, co-development contracts, clinical trial contracts, French and European consortia, etc...

Jacques Messeca is a lawyer recognized by Best Lawyers in the practice area of Sports Law. Jacques practices law in Paris, France Best Lawyers has recognized Jacques Messeca since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jacques Messeca is held by other lawyers.

Patrick Thiébart advises international companies on a wide variety of issues relating to labour law and human resources.