Company lists · Data refreshed September 2026

Top 25 Securities law firms based in Canada

RevenueBase identified 463 securities law firms headquartered in Canada as of September 2026 and tracks 9,415 professional contacts across them, including 6,054 with verified work emails and 618 with mobile numbers. Toronto is the largest hub.

This list covers securities 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 6, 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 6, 2026 86% judged on-target in blind review
463Companies
9,415Contacts tracked
6,054Verified emails
618Mobile numbers
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The 25 largest securities law firms based in Canada

Ranked by team size
Top 25 of 463 securities law firms based in Canada, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to securities 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
1Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
2Partial evidenceMontréal, QC, CanadaHQ checked Sep 6, 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 6, 2026
3Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
4Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
5Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
6Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
7Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 202651-200236 contacts →

Indirect evidence

“We bring together the knowledge, experience and energy of the whole firm to help our clients.”

Source: RevenueBase Database · checked Sep 6, 2026
8Partial evidenceVancouver, BC, CanadaHQ checked Sep 6, 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 6, 2026
9Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
10Indirect evidenceEdmonton, AB, CanadaHQ checked Sep 6, 202651-200133 contacts →

Indirect evidence

“WITTEN LLP has its roots in the early 1900s when the late Abe W.”

Source: RevenueBase Database · checked Sep 6, 2026
11Indirect evidenceVancouver, BC, CanadaHQ checked Sep 6, 202651-200129 contacts →

Indirect evidence

“BC's oldest firm with a history of over 150 years of delivering practical, quality, and cost-effective legal services to the community since 1871.”

Source: RevenueBase Database · checked Sep 6, 2026
12Partial evidenceVancouver, BC, CanadaHQ checked Sep 6, 202651-200128 contacts →

Partial evidence

“Boughton Law is a Vancouver-based law firm.”

Source: RevenueBase Database · checked Sep 6, 2026
13Partial evidenceGuelph, ON, CanadaHQ checked Sep 6, 202651-200115 contacts →

Partial evidence

“Since the mid-1960s, SV Law has provided trusted legal services to individuals, businesses, municipalities, and organizations throughout Southwestern Ontario.”

Source: RevenueBase Database · checked Sep 6, 2026
14Partial evidenceWinnipeg, MB, CanadaHQ checked Sep 6, 202651-200111 contacts →

Partial evidence

“Fillmore Riley is a highly regarded and accomplished full-service Manitoba law firm.”

Source: RevenueBase Database · checked Sep 6, 2026
15Indirect evidenceHamilton, ON, CanadaHQ checked Sep 6, 202651-200100 contacts →

Indirect evidence

“Ross & McBride LLP's clients include financial institutions and non-profit organizations, large public corporations and small family businesses, senior citizens and young people.”

Source: RevenueBase Database · checked Sep 6, 2026
16Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202651-20088 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 6, 2026
17Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202651-20083 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 6, 2026
18Partial evidenceSurrey, BC, CanadaHQ checked Sep 6, 202651-20072 contacts →

Partial evidence

“Hamilton Duncan is a leading full-service law firm based in Surrey, BC.”

Source: RevenueBase Database · checked Sep 6, 2026
19Indirect evidenceOttawa, ON, CanadaHQ checked Sep 6, 202651-20070 contacts →

Indirect evidence

“Welcome to Mann Lawyers LLP.”

Source: RevenueBase Database · checked Sep 6, 2026
20Indirect evidenceVaughan, ON, CanadaHQ checked Sep 6, 202651-20068 contacts →

Indirect evidence

“Brattys LLP, established in 1957 and based in Toronto, is a top-ranked real estate firm in Canada.”

Source: RevenueBase Database · checked Sep 6, 2026
21Indirect evidenceEdmonton, AB, CanadaHQ checked Sep 6, 202651-20068 contacts →

Indirect evidence

“Bryan & Co.”

Source: RevenueBase Database · checked Sep 6, 2026
22Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202651-20064 contacts →

Partial evidence

“Minden Gross LLP is primarily a business-oriented law firm.”

Source: RevenueBase Database · checked Sep 6, 2026
23Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-5063 contacts →

Indirect evidence

“Lax O’Sullivan Lisus Gottlieb LLP is Canada’s preeminent business litigation firm.”

Source: RevenueBase Database · checked Sep 6, 2026
24Partial evidenceOttawa, ON, CanadaHQ checked Sep 6, 202611-5063 contacts →

Partial evidence

“LaBarge Weinstein LLP, a business law firm, has been working with clients in all stages of their business, from startup to exit since 1997.”

Source: RevenueBase Database · checked Sep 6, 2026
25Partial evidenceToronto, ON, CanadaHQ checked Sep 6, 202611-5062 contacts →

Partial evidence

“Garfinkle Biderman is a cohesive, efficient and forward-thinking law firm.”

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 463 securities law firms based in Canada

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Securities law firms based in Canada at a glance

As of Sep 6, 2026
64.3%Verified-email coverage
6.6%Mobile-number coverage
20.3Average contacts per company
1-10Median size (employees)
32.2%Largest-city concentration · Toronto
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
293
11-50
130
51-200
33
201-500
4
501-1,000
2
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 securities 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 “securities 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 securities 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 securities 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, 6,054 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 6, 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 securities 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 securities law firms are there based in Canada?

RevenueBase identified 463 securities 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?

Blake, Cassels & Graydon LLP, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most securities law firms?

Toronto leads with 149 headquartered companies, followed by Vancouver (52) and Montreal (39).

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 6,054 verified decision-maker contacts tracked across these 463 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 6, 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.