Company lists · Data refreshed September 2026

Top 25 Tier law firms based in Canada

RevenueBase identified 603 tier law firms headquartered in Canada as of September 2026 and tracks 24,570 professional contacts across them, including 15,905 with verified work emails. Toronto is the largest hub.

This list covers tier law firms headquartered in 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 21, 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 21, 2026 86% judged on-target in blind review
603Companies
24,570Contacts tracked
15,905Verified emails
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The 25 largest tier law firms based in Canada

Ranked by team size
Top 25 of 603 tier law firms based in Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to tier 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261,001-5,0002,288 contacts →

Partial evidence

“About Fasken Fasken is a leading international law firm with more than 900 lawyers and ten offices on three continents.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 20261,001-5,0001,913 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 21, 2026
3Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 20261,001-5,0001,555 contacts →

Indirect evidence

“At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceCalgary, AB, CanadaHQ checked Sep 21, 2026501-1,0001,144 contacts →

Partial evidence

“For over a century, Bennett Jones has been an internationally recognized Canadian law firm founded and focused on principles of professional excellence, integrity, respect and…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 2026501-1,000983 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 21, 2026
6Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 2026501-1,000752 contacts →

Partial evidence

“Davies is a leading Canadian business law firm focused on high-stakes matters.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceMontréal, QC, CanadaHQ checked Sep 21, 2026501-1,000725 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 2026501-1,000586 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 21, 2026
9Partial evidenceMontréal, QC, CanadaHQ checked Sep 21, 2026201-500546 contacts →

Partial evidence

“Over a century of legal advice to domestic and international organizations has made Lavery Lawyers the leading independent law firm in Quebec (Canadian Lawyer).”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceOttawa, ON, CanadaHQ checked Sep 21, 2026501-1,000521 contacts →

Partial evidence

“Smart & Biggar is a Canadian intellectual property law firm.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceQuébec, QC, CanadaHQ checked Sep 21, 2026501-1,000507 contacts →

Indirect evidence

“Our firm boasts a large, well-established legal team guided by solid principles and a commitment to serving clients and their needs.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 2026201-500500 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 21, 2026
13Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 2026201-500301 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 21, 2026
14Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 2026201-500284 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 21, 2026
15Indirect evidenceCalgary, AB, CanadaHQ checked Sep 21, 2026201-500272 contacts →

Indirect evidence

“The world is changing, and it’s happening faster than ever.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceLondon, ON, CanadaHQ checked Sep 21, 202651-200271 contacts →

Partial evidence

“Siskinds is one of Southwestern Ontario’s leading law firms.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceVancouver, BC, CanadaHQ checked Sep 21, 2026201-500229 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceVancouver, BC, CanadaHQ checked Sep 21, 2026201-500224 contacts →

Indirect evidence

“We are a multifaceted firm with a strong track record of being highly integrated into our clients’ businesses.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceVancouver, BC, CanadaHQ checked Sep 21, 202651-200223 contacts →

Partial evidence

“Founded in 1907, Harper Grey LLP is a leading Vancouver, BC based business and litigation law firm.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 2026201-500220 contacts →

Indirect evidence

“Welcome to Loopstra Nixon.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceWinnipeg, MB, CanadaHQ checked Sep 21, 202651-200218 contacts →

Indirect evidence

“TDS believes that collaboration is essential to providing outstanding professional service.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202651-200206 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 21, 2026
23Indirect evidenceMontréal, QC, CanadaHQ checked Sep 21, 2026201-500191 contacts →

Indirect evidence

“Plus de 130 ans d'excellence ROBIC est un cabinet multidisciplinaire de renommée internationale regroupant des professionnels aux compétences variées incluant des avocats, des…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceVancouver, BC, CanadaHQ checked Sep 21, 202651-200183 contacts →

Indirect evidence

“Whitelaw Twining is now DWF.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceEdmonton, AB, CanadaHQ checked Sep 21, 202651-200182 contacts →

Partial evidence

“Brownlee LLP is a Western Canadian law firm with offices in Calgary, Edmonton, Vancouver, and Regina.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 603 tier law firms based in Canada

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Tier law firms based in Canada at a glance

As of Sep 21, 2026
64.7%Verified-email coverage
40.7Average contacts per company
1-10Median size (employees)
25.9%Largest-city concentration · Toronto
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
319
11-50
185
51-200
74
201-500
14
501-1,000
8
1,001-5,000
3

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 603 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 tier 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 Canada whose own description of what they do matches “tier 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 tier 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 tier law firms, and records with no verified work email. Companies headquartered outside Canada 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, 15,905 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 21, 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.

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 tier 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 tier law firms are there based in Canada?

RevenueBase identified 603 tier law firms headquartered in 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?

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

Which city has the most tier law firms?

Toronto leads with 156 headquartered companies, followed by Montreal (64) and Vancouver (52).

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 15,905 verified decision-maker contacts tracked across these 603 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 21, 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.