Linda Plumpton

Linda M. Plumpton

Toronto: 416.865.8193
Fax 416.865.7380


BA, (Honours), 1990
Queen’s University
LLB, 1994
University of Toronto

Bar Admissions

Ontario, 1996


Linda is chair of the firm’s Litigation and Dispute Resolution Practice. She is also a member of Torys’ Competition and Antitrust Practice. Her practice focuses on competition litigation, class action defence, corporate/commercial disputes and securities litigation. She also practises in the areas of public law, constitutional law and employment. Linda has appeared as counsel in the Supreme Court of Canada, in all levels of court in Ontario, and in the Federal Court, as well as before the Competition Tribunal and the Ontario Securities Commission.

Linda is a Fellow of the American College of Trial Lawyers (ACTL).

Representative Work

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Canadian Lawyer's 2020 Canadian Law Awards—Gold Winner: Litigator of the Year (2020)

Chambers Canada—Leading lawyer in competition/antitrust: litigators; dispute resolution: class action (defence); litigation: Ontario (2016-2021)

Chambers Global—Recognized lawyer in competition/antitrust litigation (2012-2021), dispute resolution (Ontario) (2012-2015), and class actions (2016-2017)

The Legal 500 Canada—Leading lawyer in competition and antitrust, dispute resolution (2018-2021)

Benchmark Canada: The Definitive Guide to Canada’s Leading Litigation Firms and Attorneys—Litigation Star (Commercial, Competition, Securities) (2013-2021)

Benchmark Canada: The Definitive Guide to Canada’s Leading Litigation Firms and Attorneys—Top 50 Trial Lawyers in Canada (2020-2021)

Best Lawyers in Canada—Leading lawyer in class action litigation, competition/antitrust law, corporate and commercial litigation (2006-2021)

Lexpert/American Lawyer’s Guide to the Leading 500 Lawyers in Canada—Leading lawyer in corporate commercial litigation, competition law, directors’ and officers’ liability litigation and class actions (2012-2021)

The Canadian Legal Lexpert Directory—Leading lawyer in litigation - directors’ & officers’ liability; litigation - corporate commercial; litigation - securities (2012-2021); class actions (2013-2021); competition law (2017-2021); professional liability (2021-2021)

Benchmark Litigation—Litigator of the Year, Ontario (2020)

Benchmark Litigation—Top 50 Women in Litigation, Canada (2020)

Who’s Who Legal—Leading Canadian lawyer in competition, litigation (2018-2020)

Benchmark Litigation—Top 25 Women in Litigation (Canada) (2014-2019)

Lexpert/Thomson Reuters’ Guide to the Leading U.S./Canada Cross-Border Corporate Lawyers in Canada—Most Frequently Recommended lawyer in dispute resolution (2018)

Expert Guides—Leading practitioner in competition and antitrust (2016)

Benchmark Litigation—Competition Litigator of the Year (2015)

Lexpert’s Guide to the Leading US/Canada Cross-border Litigation Lawyers in Canada—Leading lawyer in corporate commercial litigation and securities (2012-2013)

Which Lawyer?—Recognized Canadian lawyer in competition/antitrust (2009-2012)

Global Competition Review’s 100 Women in Antitrust—One of only six Canadian women appearing in the publication (2009)

Real Time News’ LawDay—Leading lawyer in competition law, complex litigation and white collar crime (2009)


ESG litigation risk


Professional Involvement

Linda is a member of the Antitrust Section of the American Bar Association, the Canadian Bar Association and The Advocates' Society. She is a past Director of The Advocates' Society, the past Vice-Chair of the Private Actions Committee of the Canadian Bar Association, Competition Law Section and the past Vice-Chair of the Education Committee of The Advocates' Society. She has taught advocacy and lectured on class actions and competition law issues at the Osgoode Hall Law School, the University of Ottawa Faculty of Law, the University of Toronto Faculty of Law, and at programs run by The Advocates' Society and the National Institute for Trial Advocacy.


Linda serves a Director for Pro Bono Law Ontario and for MATCH International. She was also the former Director for The Advocates’ Society.

Memberships and Affiliations

Linda is on the Private Actions Committee, the Criminal Matters Committee and the Reviewable Matters Committee for the National Competition Law Section of the Canadian Bar Association. She is also a member of the Antitrust Law Section of the American Bar Association, The Advocates’ Society and the Toronto Lawyers Association.