Gide Loyrette Nouel A.A.R.P.I. combines the expertise of highly experienced partners and many upcoming talents. Many high-profile clients, including CAC 40 and large French corporations and investment funds, are clients, as well as some banks, shareholders and international groups, that turn to the firm for their most strategic transactions, encompassing complex internal reorganisation projects, joint venture and merger deals, as well as public M&A deals. Its range of work spans various industry sectors, such as financial services, hospitality, energy, consulting and transport. The team includes Marcus Billam, Anne Tolila, Jean-Gabriel Flandrois, Antoine Tézenas du Montcel, Jean-Baptiste de Martigny and Alexandre Durand. Former practice head Olivier Diaz and Charles de Reals left the firm in March 2026.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘Top-level team with strong expertise’.
- ‘Antoine Tezenas du Montcel is an excellent lawyer who has a keen understanding of situations, going beyond his perfectly mastered technical skills.’
- ‘Client focus, availability, immediate responsiveness, in-depth analysis of the client's issues and business challenges, strong commitment. The team acts as a facilitator and demonstrates great pragmatism in finding the most appropriate solutions and knows how to innovate when necessary. A highly collaborative approach.’
- ‘Highly organised and professional. Excellent level of expertise. Rigorous and dedicated.’
- ‘The team led by Jean Baptiste de Martigny shows exceptional availability and responsiveness. They provide immediate answers to highly complex issues, readily mobilising all the necessary expertise within the firm to meet our needs across a wide range of topics. Their ability to utilise modern and appropriate technologies is top-notch.’
Key clients
- Vivendi
- Accor
- Neoen
- Mérieux Nutrisciences
- McPhy Energy
- Experimental
- Indicor
- TotalEnergies
- Air France KLM
- Vallourec
- BNP Paribas
- Howden
Work highlights
Advised European investment firm Groupe Bruxelles Lambert, significant shareholder of SGS, a Swiss testing, inspection and certification company, on the potential combination of SGS with French testing and certification group Bureau Veritas.
Advised the French State, through Agence des Participations de l’État (APE), on Eutelsat’s €1.5bn capital increase announced on June 19, 2025 and July 10, 2025.
Acting as co-counsel in advising Tencent on the creation of a €4bn new joint venture company with Ubisoft Entertainment, Ubisoft Nova, steaming from a carve out of intellectual property and IT elements and employees and in which Tencent will hold an approx. 25% stake.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Other key lawyers
Marcus Billam; Anne Tolila; Jean-Gabriel Flandrois; Antoine Tezenas de Montcel; Jean-Baptiste de Martigny; Alexandre Durand