Guillaume Potin

Bruno Deffains is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice and Product Liability Litigation. Bruno, who practices law in Paris, France, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bruno is held by other top lawyers in the same geographic and legal practice area.

A member of the Paris Bar since 1989, Stéphane PERRIN graduated from the Faculties of Law of PARIS XI and PARIS II Universities, where he gained a DEA postgraduate qualification in Intellectual Property. He also graduated from PARIS II Faculty of Law’s Institute of Legal Studies. He began his career within the law firms DS Avocats (PARIS) and DUBARRY, SERVAN-SCHREIBER & WEIL (PARIS then BRUSSELS), then as a partner in SCP FLAMBARD & Associés, before creating his ow...

Benoît BOUSSIER is co-manager of the Real Estate Law department in the Paris office. He has acquired widely recognised experience in the field of commercial leases and complex real estate transactions. He deals with every real estate aspect of corporate life (merger, restructuring, asset divestment) and asset management. He is also a Real Estate Agent and negotiates the sale of real estate assets. His other working languages are English and Spanish. Benoît BOUSSIER holds a Master&...

Adeline advises international and domestic clients on all aspects of banking finance.

Lawyer to the Paris Bar since 2006, Olivier Hayat practised in Parisian law firms specialising in IT, media and distribution law. In 2014, Olivier founded his law firm dedicated to digital and intellectual property law. Olivier practises information technology law, both in counselling and litigation, and focus his expertise on IT project negotiations, personal data (GDPR compliance and assistance to CNIL control) and also intellectual property and communication law. He has a diversified clien...

Alexandre Moustardier has developed an advisory and litigation activity, upstream and downstream, in environmental law and town planning / construction law with institutions, SMEs / SMIs, industrialists, developers, companies involved in particular in cement and quarrying, energy, agrifood, chemicals, waste treatment, etc. Managing Partner of the firm ATMOS Avocats (formerly named Selarl Huglo Lepage & Associés until December 31, 2017), Alexandre Moustardier has developed, for twen...

Joanna Gumpelson is a top attorney recognized by Best Lawyers in the practice area(s) of Insolvency and Reorganization Law and Litigation. Joanna, who practices law in Paris, France, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joanna is held by other top lawyers in the same geographic and legal practice area.

Bertrand Barrier has acquired a solid experience in Mergers & Acquisitions and assists international clients in their investment projects. With 20 years of international experience, Bertrand is also involved in the development of large-scale projects and infrastructures, mainly in developing countries, and has developed significant experience in the field of renewable energy.

Known for his expertise in international taxation and transfer pricing, Cyril Maucour advises and represents a French and international client base comprising entrepreneurs, growing companies, startups, SMEs and large groups operating in various sectors such as industry, technology, fashion, pharmaceuticals, and renewable energy. He provides guidance and support to French companies in their international expansion, offering specific expertise on foreign tax regimes. He assists foreign groups ...

Luc Castagnet is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice, Corporate Law, Health Care Law and Real Estate Law. Luc, who practices law in Paris, France, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Luc is held by other top lawyers in the same geographic and legal practice area.