Company lists · Data verified August 2026

Top 25 Advertising consulting firms based in Canada

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 2,578 companies tracked

There are 2,578 advertising consulting firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 14,115 professional contacts across them, including 4,106 with verified work emails and 1,602 with mobile numbers. Toronto is the largest hub.

This list covers advertising consulting 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.

2,578Companies

14,115Contacts tracked

4,106Verified emails

1,602Mobile numbers

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The 25 largest advertising consulting firms based in Canada

Ranked by team size

Top 25 of 2,578 advertising consulting 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	Mckinney	n/a	201-500	327	151
2	The Hive	Toronto, ON	51-200	241	44
3	Cossette Media	Vancouver, BC	501-1,000	241	25
4	Zulu Alpha Kilo	Vancouver, BC	51-200	176	121
5	Innocean Canada	Montreal, QC	51-200	175	119
6	Dingus & Zazzy	Leduc, AB	51-200	166	26
7	Saatchi & Saatchi Canada	Toronto, ON	51-200	158	92
8	Havas CX Canada	Toronto, ON	51-200	158	45
9	Battery	Toronto, ON	51-200	157	26
10	Touché	Toronto, ON	51-200	123	54
11	Evans Hunt	Calgary, AB	51-200	110	79
12	BRAD	Quebec, QC	51-200	106	1
13	Essencemediacom Canada	Montreal, QC	201-500	100	36
14	Cartier	Montreal, QC	51-200	86	31
15	Cundari	Toronto, ON	51-200	56	12
16	John ST	Toronto, ON	51-200	53	7
17	Sitepartners	Abbotsford, BC	51-200	49	40
18	Acart Communications	Ottawa, ON	51-200	42	27
19	ZIA Creative Network	Halifax	51-200	42	20
20	ONE Core Media	Toronto, ON	51-200	40	21
21	leverage.it	Toronto, ON	51-200	37	22
22	OKD Marketing	Burlington, ON	51-200	31	5
23	Homefield	Fort Saskatchewan, AB	51-200	29	11
24	Bbdo Canada	Toronto, ON	201-500	20	6
25	Britebirch Collective	Toronto, ON	51-200	14	1

Showing 25 of 2,578 advertising consulting firms based in Canada

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Advertising consulting firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 631 HQs

1,602Contacts with mobile numbers

35Emails re-verified in last 30 days

Companies by employee count

1-10

1,968

11-50

542

51-200

201-500

501-1,000

5,001-10,000

10001+

Advertising consulting firms by metro

Metro	Companies
Advertising consulting firms in Toronto	631
Advertising consulting firms in Vancouver	200
Advertising consulting firms in Montreal	200
Advertising consulting firms in Calgary	160
Advertising consulting firms in Edmonton	79
Advertising consulting firms in Ottawa	68
Advertising consulting firms in Mississauga	55
Advertising consulting firms in Quebec	43

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 consulting 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; 35 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 consulting firms are there based in Canada?

There are 2,578 advertising consulting firms headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Mckinney, headquartered in Canada, tops this list with the largest team on record.

Which city has the most advertising consulting firms?

Toronto leads with 631 headquartered companies, followed by Vancouver (200) and Montreal (200).

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 4,106 verified decision-maker contacts tracked across these 2,578 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.