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

1,044 Profile Views

Tina Schinner

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...

Rita Williamson

Feb 01, 2026

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

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...

Cheryl Auer

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...

Vanessa Kunze

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...

Martha Franey

Feb 01, 2026

Great people who truly care at Marie-Hélène Tonnellier - the best legal team in null

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...