Company lists · Data verified August 2026

Top 25 Advertising agencies based in Toronto, Canada

Name: Advertising agencies based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 850 companies tracked

There are 850 advertising agencies headquartered in Toronto, Canada (RevenueBase, August 2026). RevenueBase tracks 14,129 professional contacts across them, including 3,387 with verified work emails and 1,692 with mobile numbers. Toronto is the largest hub.

This list covers advertising agencies headquartered in Toronto, 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.

850Companies

14,129Contacts tracked

3,387Verified emails

1,692Mobile numbers

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The 25 largest advertising agencies based in Toronto, Canada

Ranked by team size

Top 25 of 850 advertising agencies based in Toronto, 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	OTHER	Toronto, ON	n/a	2,648	53
2	Momentum Worldwide	Toronto, ON	1,001-5,000	1,350	422
3	SJC	Toronto, ON	501-1,000	491	208
4	Lg2	Toronto, ON	201-500	455	356
5	Diamond	Toronto, ON	51-200	247	86
6	The Hive	Toronto, ON	51-200	241	44
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	Tank Worldwide	Toronto, ON	201-500	156	59
11	Community Agency	Toronto, ON	51-200	127	61
12	Touché	Toronto, ON	51-200	123	54
13	Point2web	Toronto	51-200	111	13
14	M&h	Toronto, ON	51-200	108	49
15	Bensimon Byrne	Toronto, ON	51-200	99	48
16	NO Fixed Address INC	Toronto, ON	51-200	85	34
17	Promotedge	Toronto	51-200	78	7
18	Cundari	Toronto, ON	51-200	56	12
19	John ST	Toronto, ON	51-200	53	7
20	GUT Toronto	Toronto, ON	51-200	52	32
21	Central Station Toronto	Toronto, ON	51-200	41	32
22	Push Media	Toronto, ON	51-200	39	18
23	Grey Canada	Toronto, ON	51-200	30	16
24	Brandlume INC	Toronto, ON	51-200	28	2
25	Talon OOH Canada	Toronto, ON	51-200	23	18

Showing 25 of 850 advertising agencies based in Toronto, Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,387 reachable decision-makers.

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Advertising agencies based in Toronto, Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 850 HQs

1,692Contacts with mobile numbers

21Emails re-verified in last 30 days

Companies by employee count

1-10

549

11-50

242

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Advertising agencies by metro in Canada

Metro	Companies
Advertising agencies in Toronto	850
Advertising agencies in Montreal	323
Advertising agencies in Vancouver	256
Advertising agencies in Calgary	173
Advertising agencies in Edmonton	89
Advertising agencies in Ottawa	78
Advertising agencies in Mississauga	59
Advertising agencies in Quebec	49

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 agencies”, with match quality audited by blind human judging, and headquartered in Toronto, 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; 21 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 agencies are there based in Toronto, Canada?

There are 850 advertising agencies headquartered in Toronto, Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

OTHER, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most advertising agencies?

Toronto leads with 850 headquartered companies, followed by Montreal (323) and Vancouver (256).

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 3,387 verified decision-maker contacts tracked across these 850 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.