Lexpert Ranked Law Firm


Mathews Dinsdale is the only boutique labour and employment law firm in Canada with offices coast-to-coast, in British Columbia, Alberta, Ontario and Nova Scotia, allowing us to better service employers across Canada. Mathews Dinsdale was the first law firm in Canada, and one of the first in North America, to exclusively provide labour and employment law services to employers. For over 60 years, the Firm’s lawyers have been involved in many of the cases that have shaped and redefined the landscape of workplace law in Canada.

Mathews Dinsdale continues to enjoy a reputation as one of Canada’s leading labour and employment law firms, with the Firm’s lawyers regarded as some of the leading and most respected legal practitioners in their fields. Our Firm is recognized by Lexpert® for our expertise in Labour Relations and Construction Labour Relations across Canada. We have the largest, most experienced, and highest ranked Occupational Health & Safely and WSIB combined practice in Canada. And have been repeatedly ranked by Canadian Lawyer magazine amongst the Top 10 Labour & Employment Boutiques in Canada.

Mathews Dinsdale represents both private and public sector employers with clients comprising of Canada’s largest employers both federally and provincially regulated. Private sector clients extend from small independent businesses to large multi-national corporations, operating in all sectors of the economy, including manufacturing, retail, construction and information technology. A significant portion of the Firm’s practice also involves advising public and broader public sector employers, including municipalities, hospitals, school boards, emergency services providers and not-for-profit organizations.

In 2013, Mathews Dinsdale integrated the services of CompClaim, a workers’ compensation and occupational health and safety consulting firm, and it provides employers with seamless access to legal, financial, safety and medical professionals.

In 2015, Mathews Dinsdale became the sole Canadian member of Ius Laboris, the world’s largest alliance of labour and employment law firms uniquely positioning us to assist employers with all their local, national and international workplace needs.


Mathews Dinsdale lawyers regularly appear on behalf of employers before provincial labour relations boards, the Canada Industrial Relations Board, arbitrators, provincial workers’ compensation boards, provincial human rights tribunals and various other federal and provincial boards and tribunals. They also represent employers before all levels of courts in wrongful dismissal actions, occupational health and safety matters, judicial reviews of decisions made by administrative tribunals, to obtain injunctive relief and to enforce competition and solicitation covenants. In addition to advocacy services, our lawyers also advise employers on matters such as collective bargaining, creating compliant human resources policies and avoiding the adverse labour relations and employment law consequences associated with the purchase, sale or restructuring of a business.

Through CompClaim, consulting services are provided to employers to assist with matters that include workplace accident investigations, case management and the facilitation of early and safe return to work. 


155 Wellington St W, Suite 3600, RBC Ctr
Toronto, ON, Canada, M5V 3H1
Phone: (416) 862-8280
Fax: (416) 862-8247

Sault Ste. Marie

65 Willow Ave, Fl 2
Sault Ste. Marie, ON, Canada, P6B 5B1
Phone: (705) 253-3711
Fax: (705) 253-1102


201 Front St N, Suite 501
Sarnia, ON, Canada, N7T 7T9
Phone: (519) 336-5447
Fax: (519) 336-9181


400 Burrard St, Suite 1950, Sun Life Financial Ctr
Vancouver, BC, Canada, V6E 3A6
Phone: (604) 638-2050
Fax: (604) 638-2049


400 3rd Ave SW, Suite 4020
Calgary, AB, Canada, T2P 4H2
Phone: (403) 538-5041
Fax: (403) 538-5049


1801 Hollis St, Suite 1120
Halifax, NS, Canada, B3J 3N4
Phone: (902) 334-0434

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People Moves

  • Tara Erskine joined Mathews Dinsdale as a partner, where she continues her practice of employment law and leads operations in the newly opened Halifax office
Mathews, Dinsdale & Clark LLP is a Lexpert-Ranked Firm in the following practice areas
Labour Relations Vancouver, British Columbia Repeatedly Recommended
Labour Relations Halifax, Nova Scotia Repeatedly Recommended
Labour Relations Toronto, Ontario Most Frequently Recommended
Labour Relations - Construction Sector Toronto, Ontario Consistently Recommended
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