Uniquely positioned to represent employers across Canada, Mathews Dinsdale’s sole focus is workplace law, and we have a depth of experience across the country that is unmatched. We were Canada’s first law firm to devote its practice to this area, more than sixty years ago. Today, we are the only workplace law firm with offices from coast-to-coast.

Local commitment.

Six offices in Ontario, British Columbia, Alberta, and Nova Scotia. Our Firm’s reputation and expertise — as well as its relationships with mediators, tribunals, arbitrators, judges, prosecutors and opposing counsel — are invaluable tools in helping resolve disputes on the best possible terms for our clients, wherever they are.

Think locally, act globally.

Ius Laboris is the world’s largest alliance of firms practicing workplace law in over 55 countries. Our participation as the exclusive Canadian member in the alliance gives us access to high quality, experienced help, almost anywhere in the world.

Thought leaders.

Our lawyers have been lead counsel in countless cases that have helped define the landscape of Canadian workplace law. Many are recognized as leaders in the practice, and are frequently asked to share their insight and expertise at speaking engagements and through written publications.

Diversity and equality.

Mathews Dinsdale has always been at the forefront of social change. Beatrice Mathews (Lyons), one of the first women in Canada to become a partner in a law practice, was one of the Firm’s co-founders. Today we continue to be committed to diversity, equality, and inclusion. We know that embracing differences brings strength to our Firm, as well as adding value to our clients.

Industry recognition


  • in the areas of Labour and Employment – Legal 500 Canada

  • in the areas of Labour Relations and the highly-specialized area of Construction Sector Labour Relations – Canadian Legal Lexpert Directory

  • in the areas of Labour, Employment and Pensions – Chambers and Partners

  • in the areas of Labour and Employment Law, Education Law, Employee Benefits Law, Immigration Law, Occupational Health & Safety and Workers’ Compensation Law – Best Lawyers in Canada

50+ countries
1,400+ lawyers

Proud to be the Canadian member of Ius Laboris, the world’s leading alliance of legal service providers in labour, employment and pension law.