An entrepreneurial firm dedicated to entrepreneurs and businesses

Attentive to the needs of economic players, we provide a genuine business strategy beyond legal and judicial advice.

We combine our various expertise according to our clients’ needs in order to assist, advise and defend them.

Helping you choose the right route

We provide our clients with a global, technical and strategic vision taking into account their distinctive economic and cultural features.

Our cross-practice and sector-specific expertise allow us to deliver tailored assistance for transactions in France and abroad through our networks of best friend firms.


DELSOL Avocats have assisted the founders of Kyutai, a not-for-profit open science artificial intelligence research laboratory

DELSOL Avocats is proud to have assisted the founders of Kyutai, a not-for-profit open science artificial intelligence research laboratory. Co-founded by CMA CGM, Groupe iliad and Schmidt Futures, Kyutai will publish all its research work free of charge. The laboratory’s co-founders aim for Kyutai to be a genuine hub for the French and...


IAPP Europe Data Protection Congress 2023

Jeanne BOSSI MALAFOSSE will be attending the Europe Data Protection Congress organised in Brussels by the IAPP (International Association of Privacy Professionals) on 15 & 16 November 2023. 👉 More information about this Congress


DELSOL Avocats advised Opera Energie on an OBO

DELSOL Avocats advised the energy broker for professionals, Opera Energie, on an OBO. Opera Energie is preparing for international expansion and the diversification of its offering with the arrival of two investors : the Luxembourg investment company Oraxys and Bpifrance. The three founders, Jean-Sébastien Degouve, Nicolas Chevallier and...


DELSOL Avocats advised CTA on an OBO

DELSOL Avocats advised CTA, a Lyon-based manufacturer of industrial refrigeration and heating systems, on an OBO. CTA opened up its capital, which until then had been wholly owned by its directors, Céline Lach and Adrien Perez, and gave a stake of around 20% to Garibaldi Participations and BNP Paribas Développement as part of an OBO in which...


Bloomberg Tax Transfer Pricing Forum Fall 2023

Julien MONSENEGO and Lilian LE QUÉRÉ sign an article entitled « Transfer Pricing for the International Practitioner » published in the « Tax Transfer Pricing Forum Fall 2023 » edition of Bloomberg Tax. 👉Read the article


Our offices


A strong position through a double location in Paris and Lyon.

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A strategic presence in Brussels, a crossroads within Europe.

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In 2023, DELSOL Avocats celebrates its 50th anniversary

July 2023

This autumn, the Firm will celebrate its 50th anniversary.

Founded during the Pompidou years, the Firm has seen oil crises and then the more prosperous periods of the 1980s and ‘90s. After the fall of the USSR, the world looked set to be led by a strong America, possibly assisted by Europe and Japan. But today’s world is different to the one we were expecting. The famous BRICs (Brazil, Russia, India, China) have not all emerged. New technologies have changed the game. The logic of blocs remains intact and the bipolarity of Western democracies has been reinforced.

Over the past half-century, DELSOL Avocats has grown, with the aim of continuously improving our services in an increasingly complex environment.

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DELSOL Avocats is member of

  • The Parlex Group
  • Telfa