Back
Vcard
gderancourt@franklin-paris.com
+ 33 1 45 02 79 00

Paris and New York Bars

CONTACT ME

Guillaume de Rancourt

Partner
Guillaume de Rancourt works in the Dispute Resolution department, covering litigation, arbitration and internal investigations.

Guillaume has a dual French-American legal background and over twenty years of experience assisting clients with complex domestic and international litigation and arbitration matters. He is recognised as an expert in international investigations and compliance, particularly in the fight against money laundering, terrorist financing, and corruption.

He specialises in defending white-collar criminals and has worked on cases involving corporate corruption, criminal and civil fraud, money laundering, and violations of economic sanctions.

He also helps multinational groups implement compliance and governance systems that meet the requirements of multiple jurisdictions, and advises them on preventive measures, crisis management, and global strategic issues.

PRACTICE AREAS
SECTORS
CONTACT ME
  • Legal 500 2026
    • Compliance – Next generation Partner
    • Dispute resolution: Commercial Litigation – Firms to watch
      Franklin further strengthened its practice after hiring all-around litigator Guillaume de Rancourt (formerly at Cleary Gottlieb Steen & Hamilton), who joined in November 2025 to handle commercial litigation, arbitration, compliance and white-collar crime work.
  • Chambers 2026 – Band Three – Corporate Compliance & Investigations
    Guillaume de Rancourt of Franklin is highly sought after by corporates, banks and international financial institutions for his advice on compliance and internal investigations.“He knows every detail of every document in every case he is working on. He is extraordinarily personable, always available and makes you feel like you are the only person on Earth”
  • Décideurs
  • Benchmark Litigation Europe – “Dispute Resolution Star” White-Collar Crime
  • Chambers 2025 – Band Three – Corporate Compliance & InvestigationsGuillaume de Rancourt enters the rankings this year. He is highly sought after by corporates, banks and international financial institutions for his advice on compliance and internal investigations.“He is an excellent lawyer. He can really adapt to the situation and he understands things very quickly; this is impressive.”“He is brilliant. He has real business vision, understands the client’s problems and brings legal solutions to complex issues in a simple way.”“He is very responsive, very intelligent and has an excellent understanding of the context and situation.”
  • Harvard Law School : LL.M.
  • University of Paris II – Panthéon-Assas : Master Degree in Business Law
  • Ecole des Hautes Études Commerciales (HEC Paris) : H.E.C.