Antoine Guilmain

Antoine Guilmain

Privacy and Data Security Law
Recognized in Best Attorney USA since 2025

About Antoine

Antoine Guilmain is a partner in Gowling WLG's Montréal office where he co-leads the firm's national Cyber Security and Data Protection Law Group. He holds two PhD's in Information Technology Law from the University of Paris 1 Panthéon-Sorbonne and the University of Montréal. He has published multiple monographs and articles, frequently gives conferences, and teaches at several universities.

Antoine Guilmain is a partner in Gowling WLG's Montréal office where he co-leads the firm's national Cyber Security and Data Protection Law Group. He holds two PhD's in Information Technology Law from the University of Paris 1 Panthéon-Sorbonne and the University of Montréal. He has published multiple monographs and articles, frequently gives conferences, and teaches at several universities.

Antoine Guilmain is a partner in Gowling WLG's Montréal office where he co-leads the firm's national Cyber Security and Data Protection Law Group. He holds two PhD's in Information Technology Law from the University of Paris 1 Panthéon-Sorbonne and the University of Montréal. He has published multiple monographs and articles, frequently gives conferences, and teaches at several universities.

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Reviews

4.5 / 5

34 Reviews

1,036 Profile Views

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Alonzo Bashirian

Feb 04, 2026

Outstanding experience with Antoine Guilmain in Montréal - truly the best legal team

I didn't think I'd find such a good lawyer in Quebec, but here we are and I am thoroughly impressed. Antoine Guilmain is just awesome and exceeded all my expectations. No complaints at all! They reall...

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Meghan Miller

Feb 04, 2026

Five stars for the incredible team at Antoine Guilmain in Montréal - they are amazing

If you need a Privacy and Data Security Law lawyer, Antoine Guilmain is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my c...

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Shelia Will

Feb 04, 2026

Excellent legal representation provided by Antoine Guilmain for my Privacy and Data Security Law case

Really glad I found Antoine Guilmain 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're in...

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Dave Murray

Feb 04, 2026

So glad I called Antoine Guilmain to handle my Privacy and Data Security Law case in Montréal

Just wanted to say a huge thanks to Antoine Guilmain 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 their...

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Frank Donnelly

Feb 04, 2026

Really helpful and compassionate service from everyone at Antoine Guilmain's firm

I've already told all my friends and family about Antoine Guilmain. If you need Privacy and Data Security Law help in Quebec, they're the ones to see without any doubt. They are local experts who real...