Arthur Pierret

Partner - Nantes

Arthur Pierret is a partner in business law at In Extenso Avocats Ouest-Atlantique.

Over the course of his professional experience, Arthur Pierret has acquired a solid experience in acquisitions and sales and commercial contracts, particularly internationally, assisting numerous French and foreign groups in:

  • negotiation and drafting of distribution, sales, technology transfer, construction contracts,
  • establishment of foreign subsidiaries,
  • the conclusion of joint venture agreements,
  • corporate acquisition,
  • the reorganization of subsidiaries and the drafting of intra-group agreements.


  • Company law
  • Commercial law
  • International
  • Insolvency law
  • Tax law advisory services

Arthur Pierret began his career as a lawyer in 1992 at Gide Loyrette Nouel. He then worked successively at Dentons, EY, Fidal and CVS. In 2022, he founded In Extenso Avocats Ouest-Atlantique.

He is involved in every step of the transaction process, including financing terms (equity, bank debt, complex securities).
He advises companies, financial investors (both in equity and mezzanine) and management teams on issues of governance and management of legal and operational risks.


A graduate of a D.E.J.A. (Diploma of Advanced Legal Studies) in Anglo-American law from Paris X University, Arthur Pierret studied and was a researcher in the Scholar LL.M. Program at the Columbia Law School in New York.

He works indistinctly in French and English, in negotiation and writing, contributing to a more fluid and responsive negotiation with both native English and non-native speakers.

Languages spoken:

  • English
  • Spanish
  • Dutch
  • Polish

T.+33(0)2 51 89 74 20


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