Best Law Firms in Ontario for Corporate and Commercial Litigation

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.

Gowling WLG is an international law firm built on the belief that the best way to serve you is to be in tune with your world, aligned with your opportunity and ambitious for your success. With more than 1,500 legal professionals around the world, we provide our clients with in-depth knowledge in key global sectors and a suite of legal services at home and abroad. We see the world through our clients' eyes, and collaborate across countries, offices, service areas and sectors to help them succeed, no matter how challenging the circumstances.

Brief History

With roots tracing back to 1887, Gowling WLG grew to become one of the largest and most respected law firms in Canada, with a reputation for innovation in client-focused service delivery.

Building on its early strength in intellectual property, Gowling WLG diversified to offer a full suite of business law, litigation and intellectual property services in all of Canada’s key industries, including energy, mining, financial services, government, infrastructure, manufacturing, life sciences and technology.

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.

Torkin Manes LLP is a full-service law firm based in downtown Toronto. Founded in 1974, we have built our firm by focusing on the core principles that we believe make a great law firm: a deep and personal understanding of clients’ business needs; a results-oriented approach to practice that provides practical, smart, and cost-effective advice; and, above all, responsiveness to our clients. 

Our professionals provide legal counsel to individuals, public and private companies, and buyers and sellers of independent businesses. Our clients range from owner-operators and founders to investment funds and high net worth individuals, who value and trust our deep knowledge, experience and expertise in the Canadian mid-market. We advise our clients on day-to-day legal matters, as well as during the most transformative transactions and critical disputes of their businesses and lives. 

When clients require legal services in other jurisdictions, we leverage our affiliation with Meritas, an international network of select law firms of which Torkin Manes is a member, to facilitate the procurement of excellent legal service and counsel worldwide.  

Our client-driven approach has brought professional accolades. Torkin Manes has been named the 2024 Regional Law Firm of the Year (Central Canada) at the Canadian Law Awards, in addition to our long-standing recognition as Top Regional Law Firm (Ontario) by Canadian Lawyer Magazine. This firm is also consistently shortlisted as one of Canada's Regional Law Firms of the Year by Chambers and Partners. Our Construction, Corporate & Commercial, Family Law and Real Estate Groups are all recognized on the Globe & Mail’s Best Law Firms in Canada list.

Many of our lawyers are well known throughout the profession and community at large as highly respected leaders in their practice areas, as well as teachers, authors and advocates for the Law Society of Ontario and the Ontario Bar Association.