Atty. Antoine Guilmain
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.
Profile Summary
About Antoine Guilmain at a glance
Antoine Guilmain is a securities attorney based in Montreal, Quebec, practicing at Gowling WLG. Recognitions include Best Lawyers in America — Privacy and Data Security Law (2026). Serands clients in Montreal, QC and the surrounding metropolitan area.
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About
- 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
Practice Areas Explained
Antoine Guilmain's Areas of Practice
Each practice area below reflects the types of cases Antoine Guilmain handles, with a brief overview of what that area of law covers.
Antoine Guilmain is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Quebec →
Jurisdictional Context
Why local counsel matters in Quebec
Practicing law in Quebec. Legal matters in Quebec are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Montreal are typically filed in the local municipal court or the appropriate Quebec state district court, depending on subject matter and amount in controversy. An attorney licensed in Quebec brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Quebec courts without local counsel or pro hac vice admission.
Looking for additional Quebec attorneys? Browse all attorneys in Montreal or all attorneys in Quebec.
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