Company lists · Data verified August 2026

Top 25 Advertising law firms based in Canada

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 173 companies tracked

There are 173 advertising law firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 3,734 professional contacts across them, including 2,284 with verified work emails and 258 with mobile numbers. Toronto is the largest hub.

This list covers advertising law firms headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

173Companies

3,734Contacts tracked

2,284Verified emails

258Mobile numbers

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The 25 largest advertising law firms based in Canada

Ranked by team size

Top 25 of 173 advertising law firms based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	BCF	Quebec, QC	501-1,000	715	433
2	Smart & Biggar	Ottawa, ON	501-1,000	517	328
3	Blaney Mcmurtry LLP	Toronto, ON	201-500	298	214
4	Weirfoulds LLP	Toronto, ON	201-500	282	212
5	Harper Grey LLP	Vancouver, BC	51-200	220	178
6	ROBIC	Quebec, QC	201-500	189	113
7	MBM Intellectual Property LAW LLP	Toronto, ON	51-200	129	31
8	SV LAW	Elora, ON	51-200	114	79
9	Mann Lawyers LLP	Perth, ON	51-200	67	52
10	Sotos LLP	Toronto, ON	11-50	56	33
11	LOW Murchison Radnoff LLP	Ottawa, ON	51-200	51	42
12	Oyen Wiggs Green & Mutala LLP	Vancouver, BC	11-50	50	31
13	Jensen Shawa Solomon Duguid Hawkes LLP	Calgary, AB	51-200	48	31
14	Bernier Beaudry Avocats & Notaires	Saint-Georges, QC	11-50	42	31
15	Prowse Barrette LLP	Edmonton, AB	11-50	36	27
16	Deeth Williams Wall LLP	Toronto, ON	11-50	33	22
17	Gilbert's LLP	Toronto, ON	11-50	33	21
18	Brauti Thorning LLP	Toronto, ON	11-50	32	24
19	Babin Bessner Spry LLP	Toronto, ON	11-50	24	23
20	Dipchand LLP	Toronto, ON	11-50	24	19
21	Aird & Mcburney LP	Toronto, ON	11-50	20	14
22	Gasco Goodhue St-Germain S.E.N.C.R.L LLP	Montreal, QC	11-50	18	12
23	Steinecke Maciura Leblanc	Toronto, ON	11-50	17	15
24	Lanctot Avocats, S.A	Montreal, QC	11-50	17	9
25	Goudreau Gage Dubuc Maintenant NOW Lavery Avocats	Montreal, QC	201-500	17	6

Showing 25 of 173 advertising law firms based in Canada

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Advertising law firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 59 HQs

258Contacts with mobile numbers

16Emails re-verified in last 30 days

Companies by employee count

1-10

110

11-50

51-200

201-500

501-1,000

Advertising law firms by metro

Metro	Companies
Advertising law firms in Toronto	59
Advertising law firms in Montreal	20
Advertising law firms in Ottawa	11
Advertising law firms in Vancouver	10
Advertising law firms in Edmonton	7
Advertising law firms in Calgary	6
Advertising law firms in Laval	3
Advertising law firms in Quebec	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising law firms”, with match quality audited by blind human judging, and headquartered in Canada.
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: Contact records re-verify on a rolling cadence; 16 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising law firms are there based in Canada?

There are 173 advertising law firms headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

BCF, headquartered in Quebec, tops this list with the largest team on record.

Which city has the most advertising law firms?

Toronto leads with 59 headquartered companies, followed by Montreal (20) and Ottawa (11).

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 2,284 verified decision-maker contacts tracked across these 173 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.