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Apart from offering expert legal consultancy for local jurisdictions, CMS Francis Lefebvre partners up with you to effectively navigate the complexities of global business and legal environments.

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Mayeul Fournier de Saint Jean
Counsel

Mayeul Fournier de Saint Jean

Languages
  • French
  • English
Social media

Mayeul Fournier de Saint Jean joined CMS Francis Lefebvre in 2025. 

He is involved in corporate law and in particular in M&A, private equity, capital markets, compliance & ESG.  

Relevant experience

  • Lawyer, Delsol Avocats 2020-2025.
  • Deputy General Counsel, RUBIS Group 2013 - 2020
  • Lecturer in stock market law and governance of listed companies, Lyon 2 and Lyon 3 Universities.

Memberships & Roles

  • Lyon Place Financière & Tertiaire: member of the sustainable finance commission (since 2022)
  • Convention des Entreprises pour le Climat (CEC) (since 2024)
  • Association des Acteurs de la Finance Responsable – AFR (Association of sustainable finance actors) (since 2020)

Education

  • CAPA (Certificat d'Aptitude à la Profession d'Avocat) - Certificate of Aptitude for the Profession of Lawyer
  • Master 2 Banking and Finance, University of Paris 5 Descartes – Malakoff
  • Master 1 Business Law and Taxation, University of Paris 5 Descartes - Malakoff

Insights by Mayeul

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