Jean-Marc Poisson


Office(s) :



Bar(s) : Lyon


Jean-Marc Poisson is a Doctor of Public Law and has a Master’s of Law from Duke University. His professional experience is varied and ranges from university lecturer between 1996 and 2010 in France, the United States and China, counsel with rights of audience before the Council of State, to working for an American law firm. Jean-Marc is now the head of the Public Business Law department, with particular responsibility for the general public law practice. He has been managing the Lyon office since 2013.

He therefore focuses on matters related to the public domain, administrative responsibility and damages from public works, regional authority and inter-communality, public and para-public organisations, public services, administrative police and the civil service. Jean-Marc acts on non-contentious and contentious matters on behalf of public entities, including numerous public establishments, participants in the mixed economy and local public-private endeavours, as well as private sector companies that provide public services by operating networks (such as transportation, telephone, electric and postal networks), or that are more generally involved or active in the public domain, such as in the food or large-scale distribution sectors.

  • LL.M, Duke University School of Law, Durham, USA, 2008
  • Bar exam (CAPA), 2002
  • Doctor of Public Law, Paris XI, 1997 / 2001
  • Master’s in Public Law, Paris XI, 1996
  • French
  • English
  • Legal 500 – Administrative & Public Law (Band 3)
  • Le Point – Public Law (5 stars)
  • Décideurs – Public Business Law – Administrative contracts and related litigation (Band 2 – Excellent)
  • Décideurs – Public Business Law – Local authority & mixed economy (Band 1 – Leading)
  • Décideurs – Public Business Law – Public domain (Band 1 – Leading)

Follow our latest activities all over the world.


Browse the wide variety of publications written by DS lawyers.


Participate in events organised by DS Avocats throughout the world.