Company lists · Data refreshed September 2026

Top 25 Business litigation law firms based in Canada

Name: Business litigation law firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 1,896 companies tracked

RevenueBase identified 1,896 company matches for business litigation law firms associated with Canada as of September 2026 and tracks 33,999 professional contacts across them, including 21,068 with verified work emails and 2,155 with mobile numbers. Toronto is the largest hub.

This list covers company matches for business litigation law firms associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

1,896Companies

33,999Contacts tracked

21,068Verified emails

2,155Mobile numbers

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The 25 largest business litigation law firms based in Canada

Ranked by team size

Top 25 of 1,896 company matches for business litigation law firms based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mccarthy Tétrault	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	1,001-5,000	1,913 contacts →
	Exact match “McCarthy Tétrault provides a broad range of legal services, advising on large and complex assignments for Canadian and international interests.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Blake, Cassels & Graydon LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	1,001-5,000	1,555 contacts →
	Exact match “At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Osler, Hoskin & Harcourt LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	1,001-5,000	1,544 contacts →
	Exact match “Osler is a leading business law firm uniquely positioned to advise Canadian, U.S.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Miller Thomson LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	1,001-5,000	1,423 contacts →
	Exact match “Miller Thomson LLP ("Miller Thomson") is a national business law firm with approximately 500 lawyers across five provinces in Canada, the broadest reach of any Canadian law firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Torys LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	501-1,000	983 contacts →
	Exact match “At Torys, we are in the constant pursuit of earning and building the trust of our clients through superior results and novel solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Davies Ward Phillips & Vineberg LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	501-1,000	752 contacts →
	Exact match “Davies is a leading Canadian business law firm focused on high-stakes matters.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	BCF	Exact match	Montréal, QC, CanadaHQ recorded Sep 23, 2026	501-1,000	725 contacts →
	Exact match “With over 500 employees and 300 professionals, BCF Business Law is the go-to firm for business leaders, growing companies, and well-established global enterprises who have chosen…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	Aird & Berlis LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	501-1,000	586 contacts →
	Exact match “Whether you are conducting business in Canada or abroad, Aird & Berlis LLP understands the realities of your work.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Goodmans LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	201-500	500 contacts →
	Exact match “Goodmans LLP is recognized internationally as one of Canada's premier transaction law firms because our lawyers and clients are industry leaders.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Lerners LLP	Exact match	London, ON, CanadaHQ recorded Sep 23, 2026	201-500	450 contacts →
	Exact match “Lerners LLP is a full service law firm that has grown to become one of Ontario’s largest firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Langlois Avocats	Exact match	Montréal, QC, CanadaHQ recorded Sep 23, 2026	201-500	351 contacts →
	Exact match “As a leading independent law firm in Québec, Langlois brings together more than 325 people, including some 185 legal professionals, in our Montréal and Québec City offices.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Blaney Mcmurtry LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	201-500	301 contacts →
	Exact match “Based in the heart of Toronto’s financial district, Blaney McMurtry LLP is one of Canada's premier law firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Weirfoulds LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	201-500	284 contacts →
	Exact match “For over 165 years, the lawyers of WeirFoulds have been proud to serve our clients in their most difficult and complex matters.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Burnet, Duckworth & Palmer LLP	Exact match	Calgary, AB, CanadaHQ recorded Sep 23, 2026	201-500	272 contacts →
	Exact match “The world is changing, and it’s happening faster than ever.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Siskinds LLP	Exact match	London, ON, CanadaHQ recorded Sep 23, 2026	51-200	271 contacts →
	Exact match “Siskinds is one of Southwestern Ontario’s leading law firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Farris LLP	Exact match	Vancouver, BC, CanadaHQ recorded Sep 23, 2026	201-500	229 contacts →
	Exact match “Farris is a high performance law firm, with a diverse client base ranging from individuals to some of the largest public institutions and private corporations in British Columbia…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	Harper Grey LLP	Exact match	Vancouver, BC, CanadaHQ recorded Sep 23, 2026	51-200	223 contacts →
	Exact match “Founded in 1907, Harper Grey LLP is a leading Vancouver, BC based business and litigation law firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Loopstra Nixon LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	201-500	220 contacts →
	Exact match “Welcome to Loopstra Nixon.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Lenczner Slaght	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	51-200	217 contacts →
	Exact match “Widely recognized as Canada’s leading litigation practice, we have successfully represented clients’ interests in some of the most complex, high-profile cases in Canadian legal…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Gardiner Roberts LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 23, 2026	51-200	206 contacts →
	Exact match “Founded in the 1920s, Gardiner Roberts LLP (GR) is a full-service law firm advising clients ranging from leading global enterprises through to small and medium-sized companies…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	ROBIC	Exact match	Montréal, QC, CanadaHQ recorded Sep 23, 2026	201-500	191 contacts →
	Exact match “Plus de 130 ans d'excellence ROBIC est un cabinet multidisciplinaire de renommée internationale regroupant des professionnels aux compétences variées incluant des avocats, des…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Whitelaw Twining	Exact match	Vancouver, BC, CanadaHQ recorded Sep 23, 2026	51-200	183 contacts →
	Exact match “Whitelaw Twining is now DWF.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Brownlee LLP	Exact match	Edmonton, AB, CanadaHQ recorded Sep 23, 2026	51-200	182 contacts →
	Exact match “Brownlee LLP is a Western Canadian law firm with offices in Calgary, Edmonton, Vancouver, and Regina.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Harrison Pensa LLP	Exact match	London, ON, CanadaHQ recorded Sep 23, 2026	51-200	176 contacts →
	Exact match “Harrison Pensa LLP is a full-service law firm with expertise in litigation, business law and real estate, and a strong focus in family, wills and estate, and personal injury law.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Church & Company, A Canadian LAW Corporation	Exact match	Vancouver, BC, CanadaHQ recorded Sep 23, 2026	n/a	176 contacts →
	Exact match “Church & Company is a litigation law firm that routinely manages complex, multi-party litigation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “business litigation law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,896 business litigation law firms based in Canada

See the full list, filter by size, metro and specialty, and access 21,068 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business litigation law firms based in Canada at a glance

As of Sep 23, 2026

62.0%Verified-email coverage

6.3%Mobile-number coverage

17.9Average contacts per company

1-10Median size (employees)

26.4%Largest-city concentration · Toronto

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

1,170

11-50

572

51-200

124

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

16,2060–30

4,56431–60

26061–90

1190–180

27180+

Company record updated

Median 75.0d

00–30

10,75231–60

15,47661–90

5,92090–180

1,851180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Canada whose business descriptions match “business litigation law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 21,068 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Business litigation law firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “business litigation law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business litigation law firms are there based in Canada?

RevenueBase identified 1,896 company matches for business litigation law firms associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Mccarthy Tétrault tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most business litigation law firms?

Toronto leads with 500 company records, followed by Montreal (161) and Vancouver (156).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 21,068 professional contacts with verified work emails tracked across these 1,896 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.