Company lists · Data refreshed September 2026

Top 23 International business law firms based in Montreal, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 197 companies tracked

RevenueBase identified 197 international business law firms headquartered in Montreal, Canada as of September 2026 and tracks 3,577 professional contacts across them, including 1,972 with verified work emails. Toronto is the largest hub.

This list covers international business law firms headquartered in Montreal, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

197Companies

3,577Contacts tracked

1,972Verified emails

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The 23 largest international business law firms based in Montreal, Canada

Ranked by team size

Top 23 of 197 international business law firms based in Montreal, Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names international business 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	DE Grandpré ChaitIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	169
	“Strongly established within the business community for over 90 years, De Grandpré Chait favours a niche-oriented approach, offering a specialized state-of-the-art service to its…” Source: company website · checked Sep 4, 2026
2	Spiegel Ryan LLPIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	162
	“We do the heavy lifting.” Source: company website · checked Sep 4, 2026
3	Robinson Sheppard ShapiroStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	147
	“Founded 100 years ago, Robinson Sheppard Shapiro is an independent, medium-sized law firm providing legal services and strategic advice to local, national, and international…” Source: company website · checked Sep 4, 2026
4	LJT Avocats LawyersPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	122
	“LJT is a boutique law firm serving its business clients for more than 30 years in the following fields of practice: Business Law, Taxation, Real Estate, Advertising and…” Source: company website · checked Sep 4, 2026
5	Lapointe Rosenstein Marchand MelançonPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	122
	“Lapointe Rosenstein Marchand Melançon is one of the largest independent law firms in Quebec, the result of the January 1, 2010 merger of two well-established firms, Lapointe…” Source: company website · checked Sep 4, 2026
6	DelegatusPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	94
	“We are the collective of experienced lawyers driving change through a visionary and flexible approach to business law.” Source: company website · checked Sep 4, 2026
7	Woods LLPIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	81
	“LITIGATION, ARBITRATION AND INSOLVENCY BOUTIQUE.” Source: company website · checked Sep 4, 2026
8	Galileo PartnersIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	39
	“We are Galileo.” Source: company website · checked Sep 4, 2026
9	Gattuso Bouchard Mazzone S.E.N.C.R.LIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	36
	“Fondé en 1991, le cabinet Gattuso Bouchard Mazzone se distingue aujourd’hui par son offre de services juridiques ciblés et diversifiés.” Source: company website · checked Sep 4, 2026
10	Blue HF LegalPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	32
	“Blue HF Legal LLP specializes in business law with particular expertise in the technology sector, located in Montreal, Quebec, Canada, which offers legal services in the…” Source: company website · checked Sep 4, 2026
11	Immetis Legal Services INCStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	28
	“Immetis is a law firm specialized in business immigration and international mobility.” Source: company website · checked Sep 4, 2026
12	Kugler Kandestin LLPPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	27
	“Premier boutique law firm located in Montreal, Quebec.” Source: company website · checked Sep 4, 2026
13	Donati MaisonneuveIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	26
	“Fondé en Donati Maisonneuve est un cabinet boutique spécialisé en litige oeuvrant essentiellement dans les industries de l'assurance, de la construction, de l'immobilier et des…” Source: company website · checked Sep 4, 2026
14	Sarrazin PlourdeIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	21
	“Sarrazin Plourde est un cabinet boutique d'avocats spécialisé en litige qui développe, avec ses clients, des solutions taillées sur mesure pour résoudre leurs problèmes ou…” Source: company website · checked Sep 4, 2026
15	Belleau LapointeIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	21
	“English below Belleau Lapointe est un cabinet d’avocats de type boutique composé de professionnels hautement expérimentés, qui offrent des solutions innovantes aux conflits en…” Source: company website · checked Sep 4, 2026
16	Lazarus LegalStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	19
	“A law firm that grows with you - We’re an international law firm established since 1967, partnering with clients in emerging industries to protect their interests and grow their…” Source: company website · checked Sep 4, 2026
17	Avens Montréal AvocatsIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	18
	“Votre mission.” Source: company website · checked Sep 4, 2026
18	Gasco Goodhue St-Germain S.E.N.C.R.L LLPIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	18
	“Gasco Goodhue St-Germain’s mission is to furnish the insurance industry with top quality, specialized legal services, while meeting the specific needs and requirements of each…” Source: company website · checked Sep 4, 2026
19	Cdnp AvocatsIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	18
	“CDNP Avocats est un cabinet boutique axé sur le droit professionnel et le droit des assurances.” Source: company website · checked Sep 4, 2026
20	Boily Handfield CPA Inc. & Boily Handfield Inc. Services JuridiquesIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	18
	“Boily, Handfield CPA Inc, a corporation of chartered professional accountants and Boily Handfield Inc, a legal firm, are proud to operate under the Boily Handfield banner.” Source: company website · checked Sep 4, 2026
21	Boavista Services Juridiques INCIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	18
	Source: company website · checked Sep 4, 2026
22	KRB Avocats LawyersPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	17
	“KRB Lawyers is a full-service law firm specializing in all areas of business law, including M&A, Corporate and Commercial, Real Estate, Banking and Finance, Litigation…” Source: company website · checked Sep 4, 2026
23	Fishman Flanz Meland Paquin LLPIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	16
	“We are a boutique commercial firm, with extensive experience in insolvency, restructuring and commercial litigation, as well as in financing and complex business transactions.” Source: company website · checked Sep 4, 2026

Showing 23 of 197 international business law firms based in Montreal, Canada

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International business law firms based in Montreal, Canada at a glance

As of Sep 4, 2026

1-10Median size (employees)

TorontoLargest hub · 409 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

112

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Montreal, over 197 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 international business 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 Montreal, Canada whose own description of what they do matches “international business 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 business law firms, and records with no verified work email. Companies headquartered outside Montreal 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, 1,972 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 business law firms by metro in Canada

International business law firms in Toronto409
International business law firms in Montreal197
International business law firms in Vancouver152
International business law firms in Calgary102
International business law firms in Mississauga77
International business law firms in Ottawa72
International business law firms in Edmonton54
International business law firms in Quebec40
International business law firms in Brampton30
International business law firms in Markham28
International business law firms in Surrey25

Frequently asked

How many international business law firms are there based in Montreal, Canada?

RevenueBase identified 197 international business law firms headquartered in Montreal, 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?

DE Grandpré Chait, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most international business law firms?

Toronto leads with 409 headquartered companies, followed by Montreal (197) and Vancouver (152).

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 1,972 verified decision-maker contacts tracked across these 197 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.

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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.