Thomas Heintzman
Arbitration Place

Bay Adelaide Centre, 333 Bay St. Suite 900
Toronto, Ontario M5H 2T4, Canada
Phone: 416-848-0203
Areas of Practice
  • Alternative Dispute Resolution (ADR)
  • Appellate Practice
  • Class Action
  • Commercial Law & Contracts
  • Communications & Media Law
  • Constitutional Law
  • Construction Law
  • Environmental Law
  • Finance & Banking
  • Insurance
  • Litigation
  • Securities Law
See more

Practice/Organization Description

Thomas G. Heintzman specializes in arbitration and mediation at Arbitration Place in Toronto. His practice focuses on corporate disputes, shareholder's rights, securities law, construction law,broadcasting/telecommunications and class actions. He has been counsel in important actions, arbitrations, and appeals before all levels of courts in many Canadian provinces as well as making numerous appearances in the Supreme Court of Canada.

Tom Heintzman is the author of Heintzman & Goldsmith on Building Contracts, 5th Edition (Carswell) which provides an analysis of the law of contracts as it applies to building contracts in Canada. Heintzman & Goldsmith on Building Contracts has been cited in 183 judicial decisions including the two leading Supreme Court of Canada decisions on the law of tendering.

Tom Heintzman was President of the Canadian Bar Association from 1994 to 1995. He was President of the Ontario Bar Association from 1989-1990. He was a bencher of the Law Society of Upper Canada, having been elected in 2003 and in 2007.

In 1980, Mr. Heintzman was appointed Queen's Counsel, in 1998, he was appointed an Officer of the Order of Canada and in 2008 he received the OBA Award for Excellence in Civil Litigation.

Since 2002, Mr. Heintzman has appeared in both the Guide to the Leading 500 Lawyers in Canada, published by L'Expert and American Lawyer, and the Canadian Legal Lexpert Directory, a guide to the leading law firms and practioners in Canada. He has been listed in an International Who's Who of Commercial Litigations (Law Business Research) as one of the top 500 commercial litigation counsel in the world. Mr. Heintzman is recognized as a leading lawyer in the areas of corporate commercial litigation, securities litigation, class action litigation, product liability and professional liability. He is also listed in The World's Leading Lawyers, published by Chambers Global, as a leading lawyer in the area of litigation.

Bar Admissions

Alberta 1990

Newfoundland 1977

Ontario 1968


Harvard University BA, cum laude in economics (1962)

University of London (1967, LLB)

Osgoode Hall Law School LLB, silver medalist (1966)

Professional Associations & Memberships

Law Society of Upper Canada, Canadian Bar Association (Past President), Ontario Bar Association (Past President),American College of Trial Lawyers, International Academy of Trial Lawyers, International Bar Assoc., American Bar Assoc., Chartered Institute of Arbitrators, ADR Institute of Ontario, Toronto Commercial Arbitration Centre

Honors and Awards

Queen's Counsel - 1980

Officer of the Order of Canada - 1998

Ontario Bar Association Award for Excellence in Civil Litigation- 2008

Recipient of the Diamond Jubilee Medal - 2012

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