Company lists · Data refreshed September 2026

Top 25 Business litigation law firms based in Toronto, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 500 companies tracked

RevenueBase identified 500 business litigation law firms headquartered in Toronto, Canada as of September 2026 and tracks 15,878 professional contacts across them, including 10,289 with verified work emails. Toronto is the largest hub.

This list covers business litigation law firms headquartered in Toronto, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

500Companies

15,878Contacts tracked

10,289Verified emails

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The 25 largest business litigation law firms based in Toronto, Canada

Ranked by team size

Top 25 of 500 business litigation law firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business litigation law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Mccarthy Tétrault	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	1,001-5,000	1,913 contacts →
	Indirect evidence “McCarthy Tétrault provides a broad range of legal services, advising on large and complex assignments for Canadian and international interests.” Source: RevenueBase Database · checked Sep 23, 2026
2	Blake, Cassels & Graydon LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	1,001-5,000	1,555 contacts →
	Indirect evidence “At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Source: RevenueBase Database · checked Sep 23, 2026
3	Osler, Hoskin & Harcourt LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	1,001-5,000	1,544 contacts →
	Partial evidence “Osler is a leading business law firm uniquely positioned to advise Canadian, U.S.” Source: RevenueBase Database · checked Sep 23, 2026
4	Miller Thomson LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	1,001-5,000	1,423 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 23, 2026
5	Torys LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	501-1,000	983 contacts →
	Indirect evidence “At Torys, we are in the constant pursuit of earning and building the trust of our clients through superior results and novel solutions.” Source: RevenueBase Database · checked Sep 23, 2026
6	Davies Ward Phillips & Vineberg LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	501-1,000	752 contacts →
	Partial evidence “Davies is a leading Canadian business law firm focused on high-stakes matters.” Source: RevenueBase Database · checked Sep 23, 2026
7	Aird & Berlis LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	501-1,000	586 contacts →
	Indirect evidence “Whether you are conducting business in Canada or abroad, Aird & Berlis LLP understands the realities of your work.” Source: RevenueBase Database · checked Sep 23, 2026
8	Goodmans LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	201-500	500 contacts →
	Partial evidence “Goodmans LLP is recognized internationally as one of Canada's premier transaction law firms because our lawyers and clients are industry leaders.” Source: RevenueBase Database · checked Sep 23, 2026
9	Blaney Mcmurtry LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	201-500	301 contacts →
	Partial evidence “Based in the heart of Toronto’s financial district, Blaney McMurtry LLP is one of Canada's premier law firms.” Source: RevenueBase Database · checked Sep 23, 2026
10	Weirfoulds LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	201-500	284 contacts →
	Indirect evidence “For over 165 years, the lawyers of WeirFoulds have been proud to serve our clients in their most difficult and complex matters.” Source: RevenueBase Database · checked Sep 23, 2026
11	Loopstra Nixon LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	201-500	220 contacts →
	Indirect evidence “Welcome to Loopstra Nixon.” Source: RevenueBase Database · checked Sep 23, 2026
12	Lenczner Slaght	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	217 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 23, 2026
13	Gardiner Roberts LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	206 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 23, 2026
14	Beard Winter LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	148 contacts →
	Partial evidence “Beard Winter LLP is one of Canada's Best Law Firms for 2023 as recognized by the Globe and Mail, with a special distinction in the practice area of Insurance Law.” Source: RevenueBase Database · checked Sep 23, 2026
15	Koskie Minsky LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	136 contacts →
	Strong evidence “Koskie Minsky is widely acknowledged as one of Canada’s pre-eminent firms in the areas of union side labour law, civil litigation, class actions, and pension and benefits.” Source: RevenueBase Database · checked Sep 23, 2026
16	Devry Smith Frank LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	135 contacts →
	Indirect evidence “Since 1964, Devry Smith Frank LLP (DSF) has provided trusted legal service to individuals, businesses, and institutions throughout Ontario.” Source: RevenueBase Database · checked Sep 23, 2026
17	Pace LAW Firm	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	127 contacts →
	Partial evidence “Established in 1981, Pace Law Firm has dedicated itself to its goal of effecting positive changes in clients’ lives by representing them effectively in navigating the legal…” Source: RevenueBase Database · checked Sep 23, 2026
18	Kronis, Rotsztain, Margles, Cappel LLP Krmc	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	114 contacts →
	Partial evidence “KRMC is a diverse, multi-service law firm located in the thriving uptown business district.” Source: RevenueBase Database · checked Sep 23, 2026
19	Mccague Borlack LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	99 contacts →
	Strong evidence “Litigation Law Firm - We are one of Toronto's leading litigation law firms with regional offices in Barrie, Ottawa, Kitchener and London.” Source: RevenueBase Database · checked Sep 23, 2026
20	Wildeboer Dellelce LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	93 contacts →
	Partial evidence “Founded in 1993, Wildeboer Dellelce is one of Canada's premier transactional business law firms and a partner of choice for entrepreneurs and leaders driven to grow or transform…” Source: RevenueBase Database · checked Sep 23, 2026
21	Chaitons LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	88 contacts →
	Partial evidence “Chaitons LLP is a leading multi-practice law firm based in Toronto, Canada, committed to delivering effective solutions, quality service and tenacious advocacy on behalf of its…” Source: RevenueBase Database · checked Sep 23, 2026
22	Mills & Mills LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	88 contacts →
	Partial evidence “Mills & Mills LLP is a Toronto law firm established 130 years ago which provides legal services of the highest quality to businesses and individuals, as well as to charitable and…” Source: RevenueBase Database · checked Sep 23, 2026
23	Dutton Brock LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	87 contacts →
	Partial evidence “We are one of Toronto's premier insurance litigation firms with over 30 years experience.” Source: RevenueBase Database · checked Sep 23, 2026
24	Thomson Rogers LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	87 contacts →
	Partial evidence “Since opening our doors in Toronto in 1935, Thomson Rogers has a reputation for taking on the most complex challenging litigation matters and delivering results.” Source: RevenueBase Database · checked Sep 23, 2026
25	Shibley Righton LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 23, 2026	51-200	83 contacts →
	Partial evidence “Established in 1964, Shibley Righton LLP is a full-service law firm with offices in Toronto and Windsor, Ontario.” Source: RevenueBase Database · checked Sep 23, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: business litigation law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names business litigation law firms.
Partial evidence: Its own public description names part of business litigation law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business litigation law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 500 business litigation law firms based in Toronto, Canada

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Business litigation law firms based in Toronto, Canada at a glance

As of Sep 23, 2026

64.8%Verified-email coverage

31.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

309

11-50

150

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 500 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among business litigation law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Toronto, Canada whose own description of what they do matches “business litigation law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names business litigation law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among business litigation law firms, and records with no verified work email. Companies headquartered outside Toronto are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 10,289 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Business litigation law firms by metro in Canada

Business litigation law firms in Toronto500
Business litigation law firms in Montreal161
Business litigation law firms in Vancouver156
Business litigation law firms in Calgary103
Business litigation law firms in Mississauga76
Business litigation law firms in Ottawa67
Business litigation law firms in Edmonton57
Business litigation law firms in Quebec30
Business litigation law firms in Markham29
Business litigation law firms in Surrey27

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names business litigation law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 500 business litigation law firms headquartered in Toronto, Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mccarthy Tétrault, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most business litigation law firms?

Toronto leads with 500 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 10,289 verified decision-maker contacts tracked across these 500 companies.

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 Smart Search, 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.