Darrois Villey Maillot Brochier appoints Matthieu Brochier and Nicolas Mennesson as heads of civil, commercial and stock market litigation

March 2025

Matthieu Brochier and Nicolas Mennesson have been promoted to head Darrois Villey Maillot Brochier’s civil, commercial and stock exchange litigation practice.

Matthieu and Nicolas, aged 45 and 49 respectively and partners in the firm where they have spent most of their careers, are specialists in national and international business litigation.

They are involved in civil, commercial and administrative proceedings (including before the French Financial Market Authority (Autorité des marchés financiers)) with high strategic stakes. In particular, they handle disputes relating to mergers and acquisitions, stock exchange law, shareholder activism and shareholder relations.

Matthieu has also developed expertise in class actions, duty of care and corporate social responsibility (CSR). He won the eloquence competition organized by the Paris Bar Conference.

In addition to his litigation practice, Nicolas regularly advises on corporate law, stock exchange law and corporate governance. He is a member of the legal committee of the Association Nationale des Sociétés par Actions. Alumnus of the École Normale Supérieure, he holds a degree in philosophy.

Matthieu Brochier and Nicolas Mennesson will work alongside Cyril Bonan and Julie Pasternak to further develop the firm’s national and international business litigation practice. They will work in synergy with the firm’s various areas of litigation expertise (arbitration, business criminal law, public business law, competition law, tax law and restructuring), as well as with its advisory practice, thus continuing the firm’s cross-functional approach to litigation.

In view of the increasing risk of litigation to which companies and their directors and officers are exposed, Matthieu and Nicolas will be incorporating new issues such as sustainability, duty of care and compliance into their practice. They will continue to promote alternative dispute resolution methods and will strengthen relationships with their foreign counterparts.