Company lists · Data refreshed September 2026

Top 25 International law firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 939 companies tracked

RevenueBase identified 939 international law firms headquartered in Canada as of September 2026 and tracks 36,426 professional contacts across them, including 22,962 with verified work emails and 2,344 with mobile numbers. Toronto is the largest hub.

This list covers international 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

939Companies

36,426Contacts tracked

22,962Verified emails

2,344Mobile numbers

Unlock all 939 companies Free signup · no credit card · 500 free credits

The 25 largest international law firms based in Canada

Ranked by team size

Top 25 of 939 international law firms based in Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names international law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Borden Ladner Gervais LLP BLGPartial evidence	Toronto, QC, CanadaHQ checked Sep 4, 2026	1,001-5,000	2,295
	“We are BLG: Canada’s Law Firm.\| Nous sommes BLG, vos avocats au Canada.(French version below) Fully bilingual across all practice areas and sectors, BLG excels in Canada’s common…” Source: company website · checked Sep 4, 2026
2	FaskenStrong evidence	Toronto, AB, CanadaHQ checked Sep 4, 2026	1,001-5,000	2,259
	“About Fasken Fasken is a leading international law firm with more than 900 lawyers and ten offices on three continents.” Source: company website · checked Sep 4, 2026
3	Mccarthy TétraultPartial evidence	Toronto, AB, CanadaHQ checked Sep 4, 2026	1,001-5,000	1,901
	“McCarthy Tétrault provides a broad range of legal services, advising on large and complex assignments for Canadian and international interests.” Source: company website · checked Sep 4, 2026
4	Osler, Hoskin & Harcourt LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1,001-5,000	1,561
	“Osler is a leading business law firm uniquely positioned to advise Canadian, U.S.” Source: company website · checked Sep 4, 2026
5	Blake, Cassels & Graydon LLPPartial evidence	Toronto, BC, CanadaHQ checked Sep 4, 2026	1,001-5,000	1,552
	“At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Source: company website · checked Sep 4, 2026
6	Miller Thomson LLPPartial evidence	Toronto, AB, CanadaHQ checked Sep 4, 2026	1,001-5,000	1,401
	“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: company website · checked Sep 4, 2026
7	Bennett JonesStrong evidence	Calgary, ON, CanadaHQ checked Sep 4, 2026	501-1,000	1,134
	“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: company website · checked Sep 4, 2026
8	Torys LLPIndirect evidence	Toronto, AB, CanadaHQ checked Sep 4, 2026	501-1,000	971
	“At Torys, we are in the constant pursuit of earning and building the trust of our clients through superior results and novel solutions.” Source: company website · checked Sep 4, 2026
9	Cassels Brock & Blackwell LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	501-1,000	810
	“Cassels Brock & Blackwell LLP is a Canadian law firm focused on serving the transaction, advocacy, and advisory needs of the country’s most dynamic business sectors.” Source: company website · checked Sep 4, 2026
10	Davies Ward Phillips & Vineberg LLPPartial evidence	Toronto, QC, CanadaHQ checked Sep 4, 2026	501-1,000	752
	“Davies is a leading Canadian business law firm focused on high-stakes matters.” Source: company website · checked Sep 4, 2026
11	BCFPartial evidence	Montréal, QC, CanadaHQ checked Sep 4, 2026	501-1,000	715
	“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: company website · checked Sep 4, 2026
12	MLT Aikins LLPPartial evidence	Calgary, AB, Canada	501-1,000	672
	“MLT Aikins LLP is a full-service law firm of more than 350 lawyers with a deep commitment to Western Canada and an understanding of this market’s unique legal and business…” Source: company website · checked Sep 4, 2026
13	Stewart MckelveyPartial evidence	Halifax, NB, CanadaHQ checked Sep 4, 2026	201-500	594
	“Stewart McKelvey is a full-service, Canadian law firm with more than 250 lawyers across six offices in Atlantic Canada.” Source: company website · checked Sep 4, 2026
14	Aird & Berlis LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	501-1,000	572
	“Whether you are conducting business in Canada or abroad, Aird & Berlis LLP understands the realities of your work.” Source: company website · checked Sep 4, 2026
15	Mcinnes CooperPartial evidence	Halifax, NB, CanadaHQ checked Sep 4, 2026	201-500	567
	“McInnes Cooper is a solutions-driven Canadian law firm and member of Lex Mundi, the world’s leading network of independent law firms.” Source: company website · checked Sep 4, 2026
16	LaveryStrong evidence	Montréal, QC, CanadaHQ checked Sep 4, 2026	201-500	543
	“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: company website · checked Sep 4, 2026
17	Smart & BiggarIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	501-1,000	517
	“Smart & Biggar is widely recognized as Canada’s leading firm for intellectual property, and with over 180 lawyers, patent agents and trademark agents.” Source: company website · checked Sep 4, 2026
18	Langlois AvocatsPartial evidence	Montréal, QC, CanadaHQ checked Sep 4, 2026	201-500	347
	“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.” Source: company website · checked Sep 4, 2026
19	Field LAWPartial evidence	Edmonton, NT, CanadaHQ checked Sep 4, 2026	201-500	309
	“Field Law is a western and northern regional business law firm listed as one of the largest firms in Canada with offices in Calgary, Canmore, Edmonton, Alberta and Yellowknife…” Source: company website · checked Sep 4, 2026
20	Blaney Mcmurtry LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	201-500	298
	“Based in the heart of Toronto’s financial district, Blaney McMurtry LLP is one of Canada's premier law firms.” Source: company website · checked Sep 4, 2026
21	Weirfoulds LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	201-500	282
	“For over 165 years, the lawyers of WeirFoulds have been proud to serve our clients in their most difficult and complex matters.” Source: company website · checked Sep 4, 2026
22	Burnet, Duckworth & Palmer LLPIndirect evidence	Calgary, AB, CanadaHQ checked Sep 4, 2026	201-500	271
	“The world is changing, and it’s happening faster than ever.” Source: company website · checked Sep 4, 2026
23	Torkin Manes LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	201-500	239
	“Torkin Manes is a full-service law firm based in downtown Toronto.” Source: company website · checked Sep 4, 2026
24	Fogler, Rubinoff LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	51-200	238
	“We bring together the knowledge, experience and energy of the whole firm to help our clients.” Source: company website · checked Sep 4, 2026
25	Alexander Holburn Beaudin Lang LLPPartial evidence	Vancouver, BC, CanadaHQ checked Sep 4, 2026	201-500	232
	“Alexander Holburn Beaudin + Lang LLP is a leading full-service, Canadian law firm with offices in Vancouver + Kelowna, British Columbia and Toronto, Ontario.” Source: company website · checked Sep 4, 2026

Showing 25 of 939 international law firms based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 22,962 reachable decision-makers.

Free signup · no credit card

See all 939 companies

International law firms based in Canada at a glance

As of Sep 4, 2026

1-10Median size (employees)

TorontoLargest hub · 210 HQs

2,344Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

493

11-50

283

51-200

111

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

31–60

1,562

61–90

12,705

90–180

8,632

180+

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 international law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “international law firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among international 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 an evidence 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, 22,962 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 4, 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.

International law firms by metro

Frequently asked

How many international law firms are there based in Canada?

RevenueBase identified 939 international 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?

Borden Ladner Gervais LLP BLG, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most international law firms?

Toronto leads with 210 headquartered companies, followed by Montreal (116) and Vancouver (78).

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 22,962 verified decision-maker contacts tracked across these 939 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 939 international law firms based in Canada. Start with a free account, no credit card.

Get the full list

Related lists

International law firms by geography

Browse the directory

Browse: Companies home · All Canada lists · All International law firms lists · New lists

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.