16.01.2026
OYAT strengthens its Digital & Innovation division with the arrival of Stéphanie Lapeyre-Castellane as a partner
PARIS, January 2026
Paris, January 2026 – OYAT is pleased to announce the arrival of Stéphanie Lapeyre-Castellane as a partner. She joins the Digital & Innovation team to head up the ‘Personal Data & Cybersecurity’ practice and co-lead the firm’s ‘Artificial Intelligence’ offering with Marie-Hélène Tonnellier, who is in charge of the IT, e-commerce and telecoms practice.