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

1,037 Profile Views

Ollie Schmidt

Feb 01, 2026

Excellent legal representation provided by Marie-Hélène Tonnellier for my Advertising Law case

Super helpful and professional staff at Marie-Hélène Tonnellier's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and...

Rhonda Nolan

Feb 01, 2026

Would recommend Marie-Hélène Tonnellier for sure to anyone in null needing legal help

Just wanted to say a huge thanks to Marie-Hélène Tonnellier and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without...

Cindy Yost

Feb 01, 2026

Finding Marie-Hélène Tonnellier was the best thing that happened during my tough Advertising Law battle

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...

Krista Lesch

Feb 01, 2026

Really helpful and compassionate service from everyone at Marie-Hélène Tonnellier's firm

Everyone at Marie-Hélène Tonnellier's office in null was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt...

Pete Wisoky

Feb 01, 2026

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

I appreciate how Marie-Hélène Tonnellier handled my case. No fluff, just straight to the point and very effective representation for my Advertising Law matter. They are obviously very experienced and...