Martin Horion

Guillaume De Saint Sernin is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits Law. Guillaume, who practices law in Paris, France, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Guillaume is held by other top lawyers in the same geographic and legal practice area.

Hélène Parent is a Private Equity M&A partner and a member of the Firm’s Private Capital industry group. Dual-qualified in Paris and Madrid, Hélène’s practice focuses primarily on highly regulated industries, including technology and life sciences. Hélène advises private equity funds, family offices, and fast-growing companies on sophisticated private equity matters, with a particular emphasis on venture capital, growth investments, an...

Founding Partner of BG2V since 2010 - Member of the Paris Bar since 2002​ ​ Experience : BG2V, Franklin, Deloitte & Touche Legal ad Taw, Tax Management of the Crédit Lyonnais.​ ​ Education : DESS of International Taxation, University of Paris II Panthéon Assas, Higher Institute of Interpreting and Translation.​ ​ Practice areas : Jean-Marc specializes in corporate taxation, mergers and acquisitions, LBOs, transaction taxation, property taxation and executive taxation. He als...

Partner of BG2V since 2017 - Member of the New York Bar since 1995 and of the Paris Bar since 1996​ ​ Experience : BG2V, Redlink, DDG, Ernst & Young, Hogan Lovells.​ ​ Education : LL.M. from Cornell University, New York, USA, DEA in International Economic Law, University of Paris Panthéon-Assas.​ ​ Areas of practice : Hervé advises listed and unlisted companies on their strategic transactions, in particular in the media, internet, luxury goods, sports and high-tech sectors. ...

With 30 years’ experience, Thierry Brun is a recognised specialist in mergers & acquisitions, joint ventures and company restructuring. His multi-sectoral activity is mainly focused on international transactions for high-end clients including corporates and investment funds, both French and foreign, to whom he offers support in their strategic growth and/or restructuring projects in France and abroad. He also manages strategic litigation and arbitration proceedings related to his ar...

Stéphanie Guedes da Costa focuses particularly on relations with employee representative bodies, professional elections, collective bargaining, as well as restructuring operations (including employee transfers, voluntary departure plans, and employment protection plans). She advises both French and international companies, providing support in both advisory and litigation matters (covering individual and collective issues). For many years, she has also assisted entities with mixed-stat...

Quentin de Margerie’s practice focuses on white collar crime and complex domestic and cross-border litigation, particularly with regard to corporate, securities and commercial law, M&A transactions, joint-ventures, directors’ liability, compliance and enforcement matters. He represents clients in all stages of their disputes, and has close to 10 years of experience as a trial lawyer before French civil, commercial and criminal courts as well as regulatory authorities. Quentin ...

Luc Castagnet is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice, Corporate Law, Health Care Law and Real Estate Law. Luc, who practices law in Paris, France, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luc is held by other top lawyers in the same geographic and legal practice area.

Olivier Lyon Lynch has developed a practice dedicated to players in the banking, financial and insurance sectors. On the banking and financial side, he assists them in any legal disputes they may encounter with their partners or customers. In this respect, Olivier has acted on behalf of numerous credit institutions and asset management companies in litigation cases involving fraud (Ponzi schemes, payment fraud, identity theft, etc.). He also assists financial institutions in disciplinary proc...

Mathilde Houet Weil is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Mathilde, who practices law in Paris, France, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mathilde is held by other top lawyers in the same geographic and legal practice area.