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

1,030 Profile Views

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Mario Kilback

Feb 04, 2026

A huge weight off my shoulders thanks to the amazing work of Antoine Guilmain

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...

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Eloise Larkin

Feb 04, 2026

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

Best lawyer for Privacy and Data Security Law in Montréal. Period. I've seen others, but Antoine Guilmain is on another level. They truly care about their clients and work hard to get the best results...

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Jerome Wiegand

Feb 04, 2026

Absolutely Great! I couldn't be happier with the service from Antoine Guilmain

Best lawyer for Privacy and Data Security Law in Montréal. Period. I've seen others, but Antoine Guilmain is on another level. They truly care about their clients and work hard to get the best results...

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Winifred Runolfsdottir

Feb 04, 2026

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

Antoine Guilmain has been doing this since Recognized in Best Lawyers since 2025, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal...

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Stanley Gulgowski

Feb 04, 2026

Antoine Guilmain did a great job handling my complex Privacy and Data Security Law case from start to finish

It's hard finding a reliable lawyer these days, but Antoine Guilmain in Montréal is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, responsiv...