Julien Siret

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

Alexandre Eberhardt Le Prévost is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Alexandre, 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 Alexandre is held by other top lawyers in the same geographic and legal practice area.

Paul van Deth is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Paul, who practices law in Paris, France, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul 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.

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...

Following a career in the private sector and in law firms, Jean-Jacques Uettwiller founded UGGC Avocats – with other lawyers – in 1993. From the onset, his foremost speciality is the law of company transfers (what some posers call M&A), providing advice or assisting with litigation, but also deal with the management of the personal assets of wealthy families. In fact, his practice is both international and multidisciplinary at the same time since it covers international arbitr...

Christine Aranda is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Christine, 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 Christine is held by other top lawyers in the same geographic and legal practice area.

Jan Dunin-Wasowicz. member of the Paris, New York and D.C. bars, is partner and co-founder of Bennink Dunin-Wasowicz , an independent European law firm based in Paris and Amsterdam that focuses on sanctions, export controls and trade compliance more generally. His practice covers cross-border compliance and enforcement, multi-jurisdictional internal and government investigations, as well as international dispute resolution. Before founding Bennink Dunin-Wasowicz in 2024, Jan was partner and C...

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...

Bernard Vatier is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation, Insolvency and Reorganization Law and Litigation. Bernard, who practices law in Paris, France, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bernard is held by other top lawyers in the same geographic and legal practice area.