Sidonie Lacroix-Girard

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.

Fabrice Piollet is a lawyer recognized by Best Lawyers in the practice area of Venture Capital Law. Fabrice practices law in Paris, France Best Lawyers has recognized Fabrice Piollet 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 Fabrice Piollet is held by other lawyers.

Mathilde Houet Weil is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Mathilde practices law in Paris, France Best Lawyers has recognized Mathilde Houet Weil since 2024. 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 Mathilde Houet Weil 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.

Peter Sherwin is a partner in the Litigation Department, head of the International Arbitration Group, head of the Commercial Real Estate Litigation Group, and a member of the Latin America Practice. Peter counsels clients in complex cross-border commercial disputes, often involving a joint venture, a licensing or distribution relationship, or an acquisition, most of which are resolved in international arbitration and the rest in federal and state courts in the United States. He has significan...

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.

Diane Le Chevallier is a lawyer recognized by Best Lawyers in the practice areas of Banking and Finance Law and Structured Finance Law. Diane practices law in Paris, France Best Lawyers has recognized Diane Le Chevallier since 2025. 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 Diane Le Chevallier is held by other lawyers.

Bruno Weil is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Bruno practices law in Paris, France Best Lawyers has recognized Bruno Weil since 2021. 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 Weil is held by other lawyers.

Matthieu Dary is a lawyer recognized by Best Lawyers in the practice areas of Competition / Antitrust Law and Information Technology Law. Matthieu practices law in Paris, France Best Lawyers has recognized Matthieu Dary 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 Matthieu Dary is held by other lawyers.

Lionel is the founder and managing partner of Galion Société d'Avocats , a Paris-based law firm advising French and international clients in Employee Benefits Law and Labor and Employment Law . He advises companies on individual employment relations , employment litigation, dispute resolution, corporate transactions, reorganizations and restructuring matters . Lionel also assists clients with Alternative Dispute Resolution (ADR), including mediation. Admitted to the Bar in 1997,...