About Cassels Brock & Blackwell LLP

Cassels Brock & Blackwell LLP is a national business law firm based in Toronto, with additional Canadian offices in Vancouver and Calgary and a U.S. office in Miami. The firm traces its roots to 1888 and points to more than 130 years of experience in Canadian business law. It's built around the transaction, advocacy, and advisory needs of the country's business sectors, and its clients range from start-ups to multinational organizations.

The firm organizes its work into more than 40 practice and industry groups, spanning mergers and acquisitions, capital markets, restructuring and insolvency, mining, entertainment and sports, cannabis, and Aboriginal law, among others. That range lets a single client move between a financing, a piece of litigation, and a regulatory filing without switching firms.

Practice areas

Not listed

In the community

  • Staff sit on boards, coach sports teams, mentor youth, and volunteer with charitable organizations.
  • The firm supports organizations including the Daily Bread Food Bank, the Canadian Red Cross, SickKids Foundation, Mount Sinai Foundation, the Barbra Schlifer Commemorative Clinic, and United Way.
  • Its pro bono partners include Law Help Ontario, Boys & Girls Clubs of Canada, and Special Olympics Canada.
  • Cassels launched a Black-Owned Small Business Grant program to support Canadian entrepreneurs.

Good to know

A person using a wheelchairWheelchair accessible

This firm’s lawyers at a glance

Called to the bar
1989–2024 · median 13 years in practice 10 of 251 lawyers
Law schools
Osgoode (34), Western University (29), University of Windsor (19), University of Toronto (17), Osgoode Hall Law School (15), Queen’s University (13) and 20 more 192 of 251 lawyers
Languages on the roster
English, French, Italian, Lithuanian

Who handles what

Offices 3

Suite 3200, Bay Adelaide Centre - North Tower, 40 Temperance Street, Toronto, ON M5H 0B4

Suite 3100, Park Place, 666 Burrard Street, Vancouver, BC V6C 2X8

Suite 3700, Bankers Hall West, 888 3rd Street SW, Calgary, AB T2P 5C5

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This listing was generated by AI from public sources in August 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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