Best Law Firms in Ontario for Corporate and Commercial Litigation

116
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 Toronto, Ontario
 Toronto, Ontario
Canada 2025
 1  Regional Award

Ghahhary Thomas LLP is a leading choice for navigating complex, sensitive, and high-stakes legal challenges. 

We are internationally recognised barristers, with a reputation for excellence rooted in elite courtroom experience, a dedication to client success, and a strong commitment to integrity and independence. 

Our experience across public, regulatory, criminal, civil, commercial and international law is rooted in many years of practice in both the United Kingdom and Canada. 

Drawing on experience of practice at the independent bar, in global law firms, government and international organizations, our depth of expertise offers formidable representation. When you choose us, you benefit from a level of proficiency in advocacy that sets us apart in Canada’s legal market. 

With four decades of combined experience spanning North America and the UK, our global and cross jurisdictional insight brings a unique and elevated approach to any case.

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Toronto Tier 2 in Corporate and Commercial Litigation
Canada 2025
 4  National Awards
 6  Regional Awards

Our broad civil litigation and administrative law practice focuses on professional negligence, health law and claims arising from sexual, physical and psychological abuse, harassment and assault. We advocate for plaintiffs and defendants, individuals and corporations, professionals and the socially marginalized and everyone in between.

We’re a team of civil litigators, with unparalleled expertise in the fields of:

  • Health and professional regulation

  • Sexual abuse, harassment and misconduct

  • Employment + Human Rights

  • Public and Constitutional Law

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National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 Vancouver, British Columbia
 Vancouver, British Columbia
Canada 2025
 3  National Awards
 5  Regional Awards

Olthuis van Ert is a leading barristers’ practice with a focus on commercial litigation and public law. Based in Vancouver and Ottawa, our firm provides expert advice and representation to clients across all levels of provincial and federal courts, as well as various tribunals.

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National Tier 2 in Corporate and Commercial Litigation
Ottawa Tier 1 in Corporate and Commercial Litigation
 Toronto, Ontario
 Toronto, Ontario
Canada 2025
 1  National Award
 3  Regional Awards
Whelton Hiutin LLP is a Toronto and Vaughan law firm specializing only in civil litigation and dispute resolution. Our clients benefit from our boutique advantage in litigation: we are lean, focused and experts in dispute resolution. Our firm applies technology and common sense, streamlining the litigation process to focus on results.
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Toronto Tier 2 in Corporate and Commercial Litigation
 3  National Awards
 10  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  National Award
 5  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 2  National Awards
 2  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  National Award
 3  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 1  National Award
 1  Regional Award
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 4  Regional Awards
London/Windsor Tier 1 in Corporate and Commercial Litigation
 10  National Awards
 39  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
London/Windsor Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 2  National Awards
 2  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 5  National Awards
 8  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 5  National Awards
 5  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 18  National Awards
 43  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 3  Regional Awards
Toronto Tier 3 in Corporate and Commercial Litigation
 1  National Award
 3  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 2  National Awards
 5  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 5  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 1  Law Firm of the Year Award
 20  National Awards
 94  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 2  Law Firm of the Year Awards
 26  National Awards
 144  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 7  National Awards
 24  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Canada 2025
 1  National Award
 2  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  Law Firm of the Year Award
 30  National Awards
 174  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Ottawa Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Canada 2025
 2  National Awards
 5  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 2  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 17  National Awards
 59  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Canada 2025
 4  Regional Awards
Ottawa Tier 1 in Corporate and Commercial Litigation
Canada 2025
 1  Law Firm of the Year Award
 5  National Awards
 34  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 2  Regional Awards
Ottawa Tier 1 in Corporate and Commercial Litigation
 4  National Awards
 6  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  National Award
 4  Regional Awards
Toronto Tier 3 in Corporate and Commercial Litigation
 1  Law Firm of the Year Award
 23  National Awards
 72  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 24  National Awards
 161  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Ottawa Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 6  Regional Awards
Toronto Tier 3 in Corporate and Commercial Litigation
 19  National Awards
 67  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 2 in Corporate and Commercial Litigation
 2  National Awards
 4  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  National Award
 2  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
 2  Regional Awards
Hamilton Tier 3 in Corporate and Commercial Litigation
Canada 2025
 1  National Award
 2  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Canada 2025
 2  National Awards
 14  Regional Awards
Toronto Tier 2 in Corporate and Commercial Litigation
Canada 2025
 30  National Awards
 188  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Ottawa Tier 2 in Corporate and Commercial Litigation
 6  National Awards
 28  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 3  National Awards
 20  Regional Awards
Toronto Tier 3 in Corporate and Commercial Litigation
Canada 2025
 2  Law Firm of the Year Awards
 18  National Awards
 40  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
Canada 2025
 1  Law Firm of the Year Award
 28  National Awards
 173  Regional Awards
National Tier 1 in Corporate and Commercial Litigation
Hamilton Tier 1 in Corporate and Commercial Litigation
Ottawa Tier 1 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 5  Regional Awards
Toronto Tier 3 in Corporate and Commercial Litigation
 12  Regional Awards
London/Windsor Tier 2 in Corporate and Commercial Litigation
 5  National Awards
 9  Regional Awards
National Tier 3 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
 1  Law Firm of the Year Award
 3  National Awards
 9  Regional Awards
National Tier 2 in Corporate and Commercial Litigation
Toronto Tier 1 in Corporate and Commercial Litigation
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