Marie-Hélène Tonnellier

4.7 (35 reviews )

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Advertising Law Information Technology Law Intellectual Property Law +3 more

Recognized in Best Attorney USA since 2020

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About Marie-Hélène

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.

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.

Practice Areas

Advertising Law

Information Technology Law

Intellectual Property Law

Media Law

Privacy and Data Security Law

Technology Law

Awards & Recognition

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Reviews

4.7 / 5

35 Reviews

1,041 Profile Views

Jackie Swift

Feb 01, 2026

A honest review of my experience with Marie-Hélène Tonnellier regarding a Advertising Law matter

Last year, I found myself in a really difficult spot with a Advertising Law problem in null. I had no idea where to start and was honestly terrified of the process. Marie-Hélène Tonnellier was recomme...

Steven Bartell

Feb 01, 2026

Simply amazing representation from Marie-Hélène Tonnellier's office during my recent legal matter

Short and sweet: Marie-Hélène Tonnellier is the real deal and a true professional in the field of Advertising Law. If you're in null and need help with your legal issues, call them immediately. You wo...

Leo Morar

Feb 01, 2026

The absolute best in null for Advertising Law - and I mean that from the bottom of my heart

I didn't think I'd find such a good lawyer in null, but here we are and I am thoroughly impressed. Marie-Hélène Tonnellier is just awesome and exceeded all my expectations. No complaints at all! They...

Wesley Erdman

Feb 01, 2026

Outstanding experience with Marie-Hélène Tonnellier in null - truly the best legal team

I was really stressed about my case in null, but Marie-Hélène Tonnellier made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every de...

Ben Kohler

Feb 01, 2026

Solid work and professional service from Marie-Hélène Tonnellier in null for null residents

Needed help with Advertising Law and Marie-Hélène Tonnellier delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in null looking for high-quality...