2025’s Top 10 Legal Companies in Canada

We’re tracking 45,472 Legal companies in Canada.

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Companies	Employees	HQ location	Revenue	Founded	Estimated Traffic	Industries
Miller Thomson	View 1,278 employees	🇨🇦 Ontario, Toronto+26	$ 500-1000M	1957	232,231	Consulting, Business Development
McMillan	View 840 employees	🇨🇦 Ontario, Old Toronto+10	$ 500-1000M	1903	106,980	Consulting, Legal
Osler, Hoskin & Harcourt	View 1,500 employees	🇨🇦 Ontario, Toronto+12	$ 100-500M	1862	240,100	Consulting, Professional Services
Fasken	View 2,338 employees	🇨🇦 Ontario, Toronto+17	$ 100-500M	1890	206,231	Consulting, Professional Services
McCarthy Tétrault LLP	View 1,856 employees	🇨🇦 Ontario, Toronto+14	$ 100-500M	1855	126,240	Professional Services, Consulting
Public Prosecution Service of Canada	View 341 employees	🇨🇦 Iqaluit+12	$ 100-500M	2006	39,175	Legal, Professional Services
Law Society of Ontario	View 586 employees	🇨🇦 Ontario, Old Toronto+1	$ 100-500M	1797	2,014,999	Consulting, Legal
Legal Line	View 2 employees	🇨🇦 Toronto+1	$ 100-500M	1993	382,447	Legal, Professional Services
Torys LLP	View 967 employees	🇨🇦 Ontario, Toronto+7	$ 100-500M	1941	132,912	Consulting, Professional Services
Cassels	View 810 employees	🇨🇦 Ontario, Toronto+5	$ 100-500M	1888	77,951	Legal
Miller Thomson	View 1,278 employees	🇨🇦 Ontario, Toronto+26	$ 500-1000M	1957	232,231	Consulting, Business Development
McMillan	View 840 employees	🇨🇦 Ontario, Old Toronto+10	$ 500-1000M	1903	106,980	Consulting, Legal
Osler, Hoskin & Harcourt	View 1,500 employees	🇨🇦 Ontario, Toronto+12	$ 100-500M	1862	240,100	Consulting, Professional Services
Fasken	View 2,338 employees	🇨🇦 Ontario, Toronto+17	$ 100-500M	1890	206,231	Consulting, Professional Services
McCarthy Tétrault LLP	View 1,856 employees	🇨🇦 Ontario, Toronto+14	$ 100-500M	1855	126,240	Professional Services, Consulting
Public Prosecution Service of Canada	View 341 employees	🇨🇦 Iqaluit+12	$ 100-500M	2006	39,175	Legal, Professional Services
Law Society of Ontario	View 586 employees	🇨🇦 Ontario, Old Toronto+1	$ 100-500M	1797	2,014,999	Consulting, Legal
Legal Line	View 2 employees	🇨🇦 Toronto+1	$ 100-500M	1993	382,447	Legal, Professional Services
Torys LLP	View 967 employees	🇨🇦 Ontario, Toronto+7	$ 100-500M	1941	132,912	Consulting, Professional Services
Cassels	View 810 employees	🇨🇦 Ontario, Toronto+5	$ 100-500M	1888	77,951	Legal

1. Miller Thomson

Miller Thomson, headquartered in Toronto, Ontario, is a leading Canadian law firm known for its broad array of legal services. This firm stands out in the legal landscape of Canada for its commitment to excellence and its comprehensive understanding of both local and national laws. Miller Thomson serves a diverse client base, including large corporations, small businesses, and individuals across various sectors, ensuring legal integrity and innovative solutions are accessible in Ontario’s dynamic legal environment. Their expertise extends from corporate and business law to environmental, real estate, and tax law, making them a versatile partner in the legal industry.

Location 🇨🇦 Ontario, Toronto	Size View 1,278 employees
Revenue $ 500-1000M	Industries Professional Services, Government and Military, Privacy and Security
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2. McMillan

McMillan, a distinguished law firm based in Canada, excels in providing innovative legal solutions across a variety of sectors including corporate law, intellectual property, and litigation. Located in the heart of the Canadian legal landscape, McMillan prides itself on its strategic approach to legal advice, tailored specifically to foresee and address the complex needs of their clientele. The firm’s strong presence in the legal industry in Canada is geared towards facilitating businesses to navigate the legal challenges of the modern market effectively and efficiently.

Location 🇨🇦 Ontario, Old Toronto	Size View 840 employees
Revenue $ 500-1000M	Industries Professional Services, Government and Military, Privacy and Security
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3. Osler, Hoskin & Harcourt

Osler, Hoskin & Harcourt, based in Canada, is widely recognized for its expertise in business law, particularly serving clients within the legal industry. Their extensive services cater to complex cases involving corporate governance, taxation, mergers and acquisitions, and litigation, making them a critical resource for companies navigating the intricate legal landscapes in Canada. With a strong commitment to providing practical, innovative solutions, Osler plays a pivotal role in helping businesses achieve their strategic objectives effectively and legally.

Location 🇨🇦 Ontario, Toronto	Size View 1,500 employees
Revenue $ 100-500M	Industries Professional Services
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4. Fasken

Fasken, headquartered in Toronto, Canada, is a prominent law firm with a robust presence in California’s legal landscape. Known for its diversified legal services that span corporate law, litigation, and environmental law, Fasken stands out with its proactive approach to legal challenges. They leverage their extensive knowledge to support industries with sharp insights and effective solutions. Notably, Fasken’s strategies and legal services aim to navigate complex compliance and litigation landscapes effectively, making them a trusted partner for businesses operating within the stringent regulatory frameworks of California.

Location 🇨🇦 Ontario, Toronto	Size View 2,338 employees
Revenue $ 100-500M	Industries Professional Services, Government and Military, Privacy and Security
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5. McCarthy Tétrault LLP

Located in Canada, McCarthy Tétrault LLP is a premier law firm that plays a vital role in the legal landscape with a strong focus on client-centric services in business law, litigation, tax, real estate, and labor and employment law. Known for its innovative approach, the firm utilizes cutting-edge legal technology to enhance its service offerings and efficiency. McCarthy Tétrault stands out for its commitment to delivering strategic and tailor-made legal solutions that address the complex challenges faced by businesses across various sectors.

Location 🇨🇦 Ontario, Toronto	Size View 1,856 employees
Revenue $ 100-500M	Industries Professional Services, Community and Lifestyle
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6. Public Prosecution Service of Canada

Public Prosecution Service of Canada (PPSC) – LegalBased in Canada, the Public Prosecution Service of Canada (PPSC) is a federal government organization responsible for prosecuting criminal cases on behalf of the Crown. Their mandate extends across Canada, where they ensure that prosecutions are conducted in a manner that is fair, objective, and devoid of any influence other than the merits of the case. The PPSC plays a crucial role in the legal framework by upholding law and order, often focusing on cases involving drug offenses, organized crime, and economic crimes among others.

Location 🇨🇦 Iqaluit	Size View 341 employees
Revenue $ 100-500M	Industries Professional Services, Government and Military, Privacy and Security
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7. Law Society of Ontario

Law Society of Ontario – LegalHeadquartered in Toronto, Canada, the Law Society of Ontario (LSO) regulates the practice of law in Ontario to ensure that the public is served by lawyers and paralegals who meet high standards of learning, competence, and professional conduct. As the legal profession’s regulatory body in Ontario, the LSO issues licenses to practice law or provide legal advice in the region and promotes legal education. Its initiatives are designed to uphold justice while adapting to meet the evolving needs of the legal community and the public it serves.

Location 🇨🇦 Ontario, Old Toronto	Size View 586 employees
Revenue $ 100-500M	Industries Professional Services, Government and Military, Privacy and Security, Community and Lifestyle
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8. Legal Line

Legal Line, located in Canada, is an essential resource for Canadian law advice, offering accessible and free legal information on a broad range of topics. Catering to both legal professionals and the public, Legal Line enhances understanding of Canadian laws and rights, significantly benefiting those who navigate the complex legal landscape of Canada. Praised for its usability and breadth of accessible information, Legal Line empowers its users with knowledge to handle legal issues effectively and confidently, contributing greatly to informed citizenry in Canada.

Location 🇨🇦 Toronto	Size View 2 employees
Revenue $ 100-500M	Industries Professional Services, Government and Military, Privacy and Security, Community and Lifestyle
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9. Torys LLP

Torys LLP, headquartered in Toronto, Canada, is a distinguished law firm recognized for its expertise in various legal sectors. Serving clients throughout major industries, Torys offers compelling solutions in corporate law, litigation, tax, and intellectual property, to name a few. Known for their robust advisory on cross-border transactions, they have been instrumental in shaping significant business law frameworks across Canada. With a reputation for strategic precision and legal acumen, Torys LLP continues to be a cornerstone in the Canadian legal landscape, making them a preferred partner for significant corporate ventures.

Location 🇨🇦 Ontario, Toronto	Size View 967 employees
Revenue $ 100-500M	Industries Professional Services
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10. Cassels

Cassels, headquartered in Toronto, Canada, is a prominent law firm specializing in legal services across various industries, with a strong focus on corporate and intellectual property law. This firm prides itself on its deep industry knowledge and commitment to providing strategic legal solutions that align with clients’ business objectives. Notably, Cassels has played a crucial role in major transactions and litigations in Canada, establishing itself as a key player in the legal landscape. Their expertise is particularly renowned in the sectors of mining, technology, and healthcare.

Location 🇨🇦 Ontario, Toronto	Size View 810 employees
Revenue $ 100-500M	Industries Professional Services
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