Marie-Hélène Tonnellier is ranked in the 2024 Chambers Guide

Oyat is very proud to announce that Marie-Hélène Tonnellier, partner of Digital & Innovation department and co founder of Oyat, is ranked in the 2024 Chamber Guide TMT Information Technology – France.

“Marie-Hélène gives straightforward answers, and she is a very charming person who is pleasant to work with.”

“I appreciated what she brought to the negotiations: she had gravitas when we needed authority and humour when we needed to relax and loosen up.”

“Marie-Hélène perfectly understands our approach and knows where she provides most added value to intervene.”