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

1,036 Profile Views

Annette Bruen

Feb 01, 2026

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

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...

Freda Stracke

Feb 01, 2026

Absolutely Great! I couldn't be happier with the service from Marie-Hélène Tonnellier

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...

Fernando Schamberger-Mueller

Feb 01, 2026

Highly recommend Marie-Hélène Tonnellier for anyone needing expert Advertising Law help in null

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...

Ruby Feil

Feb 01, 2026

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

Really glad I found Marie-Hélène Tonnellier for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you...

Thomas Kutch

Feb 01, 2026

Five stars for the incredible team at Marie-Hélène Tonnellier in null - they are amazing

Best lawyer for Advertising Law in null. Period. I've seen others, but Marie-Hélène Tonnellier is on another level. They truly care about their clients and work hard to get the best results. I am so t...