Arnaud Mailhos

Matthieu Adam is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance and Development Practice. Matthieu, who practices law in Paris, France, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthieu is held by other top lawyers in the same geographic and legal practice area.

Cyril Deniaud advises French and foreign clients (listed companies, investment funds, institutional investors and banks) in connection with market transactions (takeover bids, IPOs, issues of shares or securities giving access to capital, delistings, management and employee shareholdings, etc.).

Anthony Paronneau is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice and Mergers and Acquisitions Law. Anthony, who practices law in Paris, France, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Anthony is held by other top lawyers in the same geographic and legal practice area.

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...

Serge Lederman intervenes as counsel as well as in litigation in industrial property law in sectors as diverse as fashion, design and media and the food industry, and literary and artistic property law in the areas of art, media and communication. Recognised by his clients for his analysis of litigious matters and the stakes at hand, as well as his sharp grasp of litigious strategies, Serge Lederman advises companies and institutions on an international level and on domestic operations. He is...

For more information, please visit www.gibsondunn.com/lawyer/harroch-ariel/ .

Partner Cyprien Pialoux advises companies on daily management of industrial relations. He also represents companies and their management teams before civil and criminal courts. He focuses on individual and collective litigation related to restructuring operations, discrimination, professional inequality or disputes arising with employee representative bodies.Cyprien holds a master’s certificate in business law from Paris XI University (2000) and a master’s degree in business law f...

Marie-Hélène Tonnellier is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law, Information Technology Law, Intellectual Property Law, Media Law, Privacy and Data Security Law and Technology Law. Marie-Hélène, who practices law in Paris, France, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marie-Hélène is held by other top lawyers in the same geographic and legal practice area.

Lynda Belaid is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Lynda, 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 Lynda is held by other top lawyers in the same geographic and legal practice area.

Marie-Hélène Raffin is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law and Tax Law. Marie-Hélène, 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 Marie-Hélène is held by other top lawyers in the same geographic and legal practice area.