Jonas Poell

Cécile Théard-Jallu has developed in-depth expertise as an attorney in private practice representing multinational corporations, including major US and European firms and organizations in the R&D and healthcare sector (public or private research institutions, academics, pharmaceutical laboratories, biotechnology companies, medical equipment manufacturers, service providers, software or connected health platforms publichers, investors, competitiveness clusters, tech transfer ...

Géraldine Machinet is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Géraldine, who practices law in Paris, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Géraldine is held by other top lawyers in the same geographic and legal practice area.

François Zocchetto is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. François, who practices law in Paris, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which François is held by other top lawyers in the same geographic and legal practice area.

A partner in the Firm’s International Investigations and Compliance practice, Bryan has over 20 years of experience advising clients on a variety of governance and compliance matters. His practice focuses on advising multinational organizations on a host of compliance and regulatory issues, with particular focus on complying with international anti-corruption laws. His expertise includes assisting clients in developing and enhancing fit-for-purpose policies and procedures, conducting ex...

Safine Hadri is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Safine, 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 Safine is held by other top lawyers in the same geographic and legal practice area.

Charlotte Michaud provides guidance and advice to human resources and legal departments of both French and international companies and groups on all aspects of employment law. This includes both their day-to-day management of labor relations with employee representative bodies, and during complex operations and reorganizations. She handles cases related to company transfers and collective layoffs, as well as issues related to working hours, compensation, and mobility. She also assists compani...

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

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.).

Stéphanie Guedes da Costa focuses particularly on relations with employee representative bodies, professional elections, collective bargaining, as well as restructuring operations (including employee transfers, voluntary departure plans, and employment protection plans). She advises both French and international companies, providing support in both advisory and litigation matters (covering individual and collective issues). For many years, she has also assisted entities with mixed-stat...

Alexandre Marque is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Leveraged Buyouts, Mergers and Acquisitions Law and Private Equity Law. Alexandre, who practices law in Paris, France, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alexandre is held by other top lawyers in the same geographic and legal practice area.