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

1,038 Profile Views

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Melinda Hand

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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Alfonso Ankunding

Feb 04, 2026

Highly recommend Antoine Guilmain for anyone needing expert Privacy and Data Security Law help in Quebec

I was really stressed about my case in Montréal, but Antoine Guilmain made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every detai...

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Forrest Bruen

Feb 04, 2026

A very good experience overall with the entire team at Antoine Guilmain's legal practice

I appreciate how Antoine Guilmain handled my case. No fluff, just straight to the point and very effective representation for my Privacy and Data Security Law matter. They are obviously very experienc...

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Joe Breitenberg

Feb 04, 2026

So happy with the results of my case thanks to the hard work of Antoine Guilmain and staff

Short and sweet: Antoine Guilmain is the real deal and a true professional in the field of Privacy and Data Security Law. If you're in Montréal and need help with your legal issues, call them immediat...