Company lists · Data refreshed September 2026

Top 25 Securities law firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 463 companies tracked

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, how directly it supports the match, 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 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 6, 2026 86% judged on-target in blind review

463Companies

9,415Contacts tracked

6,054Verified emails

618Mobile numbers

Explore all 463 companies → Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names securities 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	Blake, Cassels & Graydon LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	1,001-5,000	1,555
	“At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Source: company website · checked Sep 6, 2026
2	BCFPartial evidence	Montréal, QC, CanadaHQ checked Sep 6, 2026	501-1,000	725
	“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 6, 2026
3	Aird & Berlis LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	501-1,000	586
	“Whether you are conducting business in Canada or abroad, Aird & Berlis LLP understands the realities of your work.” Source: company website · checked Sep 6, 2026
4	Goodmans LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	201-500	500
	“Goodmans LLP is recognized internationally as one of Canada's premier transaction law firms because our lawyers and clients are industry leaders.” Source: company website · checked Sep 6, 2026
5	Blaney Mcmurtry LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	201-500	301
	“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 6, 2026
6	Weirfoulds LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	201-500	284
	“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 6, 2026
7	Fogler, Rubinoff LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	236
	“We bring together the knowledge, experience and energy of the whole firm to help our clients.” Source: company website · checked Sep 6, 2026
8	Harper Grey LLPPartial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	223
	“Founded in 1907, Harper Grey LLP is a leading Vancouver, BC based business and litigation law firm.” Source: company website · checked Sep 6, 2026
9	Gardiner Roberts LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	206
	“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: company website · checked Sep 6, 2026
10	Witten LLPIndirect evidence	Edmonton, AB, CanadaHQ checked Sep 6, 2026	51-200	133
	“WITTEN LLP has its roots in the early 1900s when the late Abe W.” Source: company website · checked Sep 6, 2026
11	Richards Buell Sutton LLPIndirect evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	129
	“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: company website · checked Sep 6, 2026
12	Boughton LAW CorporationPartial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	128
	“Boughton Law is a Vancouver-based law firm.” Source: company website · checked Sep 6, 2026
13	SV LAWPartial evidence	Guelph, ON, CanadaHQ checked Sep 6, 2026	51-200	115
	“Since the mid-1960s, SV Law has provided trusted legal services to individuals, businesses, municipalities, and organizations throughout Southwestern Ontario.” Source: company website · checked Sep 6, 2026
14	Fillmore Riley LLPPartial evidence	Winnipeg, MB, CanadaHQ checked Sep 6, 2026	51-200	111
	“Fillmore Riley is a highly regarded and accomplished full-service Manitoba law firm.” Source: company website · checked Sep 6, 2026
15	Ross & McbrideIndirect evidence	Hamilton, ON, CanadaHQ checked Sep 6, 2026	51-200	100
	“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: company website · checked Sep 6, 2026
16	Mills & Mills LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	88
	“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: company website · checked Sep 6, 2026
17	Shibley Righton LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	83
	“Established in 1964, Shibley Righton LLP is a full-service law firm with offices in Toronto and Windsor, Ontario.” Source: company website · checked Sep 6, 2026
18	Hamilton DuncanPartial evidence	Surrey, BC, CanadaHQ checked Sep 6, 2026	51-200	72
	“Hamilton Duncan is a leading full-service law firm based in Surrey, BC.” Source: company website · checked Sep 6, 2026
19	Mann Lawyers LLPIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	70
	“Welcome to Mann Lawyers LLP.” Source: company website · checked Sep 6, 2026
20	Brattys LLPIndirect evidence	Vaughan, ON, CanadaHQ checked Sep 6, 2026	51-200	68
	“Brattys LLP, established in 1957 and based in Toronto, is a top-ranked real estate firm in Canada.” Source: company website · checked Sep 6, 2026
21	Bryan & Company LLPIndirect evidence	Edmonton, AB, CanadaHQ checked Sep 6, 2026	51-200	68
	“Bryan & Co.” Source: company website · checked Sep 6, 2026
22	Minden Gross LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	64
	“Minden Gross LLP is primarily a business-oriented law firm.” Source: company website · checked Sep 6, 2026
23	LAX O'sullivan Lisus Gottlieb LLPIndirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	11-50	63
	“Lax O’Sullivan Lisus Gottlieb LLP is Canada’s preeminent business litigation firm.” Source: company website · checked Sep 6, 2026
24	Labarge Weinstein LLPPartial evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	63
	“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: company website · checked Sep 6, 2026
25	Garfinkle Biderman LLPPartial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	11-50	62
	“Garfinkle Biderman is a cohesive, efficient and forward-thinking law firm.” Source: company website · 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

1-10Median size (employees)

TorontoLargest hub · 149 HQs

618Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

293

11-50

130

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

5,656

31–60

381

61–90

90–180

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 securities 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 “securities 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 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 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, 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.

Securities law firms by metro

Frequently asked

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 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.