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

1,042 Profile Views

Darla Swift

Feb 01, 2026

Many thanks to Marie-Hélène Tonnellier for the hard work and dedication to my legal matter

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...

Maria Herman-Schmitt

Feb 01, 2026

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

If you're looking for someone who actually cares and will fight for you, go to Marie-Hélène Tonnellier. They helped me out big time with my Advertising Law issue and kept me informed at every step of...

Winston Schuppe

Feb 01, 2026

A huge weight off my shoulders thanks to the amazing work of Marie-Hélène Tonnellier

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...

Janice Lemke

Feb 01, 2026

A very good experience overall with the entire team at Marie-Hélène Tonnellier's legal practice

Solid experience overall with the law firm of Marie-Hélène Tonnellier. They know Advertising Law inside and out and gave me great advice. Very helpful and got the job done exactly as they said they wo...

Doris Hills

Feb 01, 2026

A huge weight off my shoulders thanks to the amazing work of Marie-Hélène Tonnellier

I've already told all my friends and family about Marie-Hélène Tonnellier. If you need Advertising Law help in null, they're the ones to see without any doubt. They are local experts who really unders...