Guilhem Argueyrolles

Yves Mondellini joined the Corporate Law/Mergers & Acquisitions department of UGGC Avocats in 2005. In his practice, Yves endeavours to smooth the progress of the transactions entrusted to him and to provide true added value to the clients. Aside from the problems and/or risks he can identify, Yves is always intent on being attentive and on looking for ingenious solutions while obviously ensuring the legal security and protecting the interests of our firm’s clients. MERGERS & AC...

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...

Magali Masson is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Magali practices law in Paris, France Best Lawyers has recognized Magali Masson since 2023. 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 Magali Masson is held by other lawyers.

Guilhem Richard is a lawyer recognized by Best Lawyers in the practice areas of Biotechnology and Life Sciences Practice, Capital Markets Law and Health Care Law. Guilhem practices law in Paris, France Best Lawyers has recognized Guilhem Richard since 2023. 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 Guilhem Richard is held by other lawyers.

Laurent Ayache is a lawyer recognized by Best Lawyers in the practice areas of Administrative Law, Public Law and Regulatory Practice. Laurent practices law in Paris, France Best Lawyers has recognized Laurent Ayache since 2022. 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 Laurent Ayache is held by other lawyers.

Thierry Postif is a lawyer recognized by Best Lawyers in the practice area of Energy Law. Thierry practices law in Paris, France Best Lawyers has recognized Thierry Postif since 2027. 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 Thierry Postif is held by other lawyers.

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...

A graduate of the Paris Institute of Political Studies, Philippe Montanier handles inquiries relative to corporate labour law and brings his expertise to bear more particularly on matters of social security law (retirement and provisions), employee savings schemes, civil service law and the relations with staff representative institutions. He heads the “Compensation & Benefits” team with Philippe Langlois and Juliana Kovac.

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...

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.