Company lists · Data refreshed September 2026

Top 25 Full-service advertising agencies based in Canada

Name: Full-service advertising agencies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 3,100 companies tracked

RevenueBase identified 3,100 full-service advertising agencies headquartered in Canada as of September 2026 and tracks 24,531 professional contacts across them, including 6,583 with verified work emails and 2,440 with mobile numbers. Toronto is the largest hub.

This list covers full-service advertising agencies 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 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

3,100Companies

24,531Contacts tracked

6,583Verified emails

2,440Mobile numbers

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The 25 largest full-service advertising agencies based in Canada

Ranked by team size

Top 25 of 3,100 full-service advertising agencies based in Canada, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names full-service advertising agencies: 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	OTHERIndirect evidence	Toronto, ON, Canada	n/a	2,648
	“Other.™ is a modern integrated media agency built for marketers who need more from their agency partner.” Source: company website · checked Sep 3, 2026
2	MckinneyPartial evidence	Canada	201-500	327
	“McKinney is a full-service creative agency that generates unfair attention for brands.” Source: company website · checked Sep 3, 2026
3	Gsw, Powered By Syneos HealthStrong evidence	Toronto, ON, Canada	501-1,000	302
	“GSW, powered by Syneos Health, is a full-service communications agency that goes beyond advertising to create personalized brand experiences with a focus in health and wellness.” Source: company website · checked Sep 3, 2026
4	XMCIndirect evidence	Toronto, ON, Canada	51-200	295
	“Founded in 2006, XMC is a proudly independent agency that provides strategic counsel and execution of bespoke Sponsorship and Experiential Marketing™ programs for over 25…” Source: company website · checked Sep 3, 2026
5	DiamondIndirect evidence	Toronto, ON, Canada	51-200	247
	“Diamond is an award-winning integrated creative agency headquartered in Toronto, Ontario.” Source: company website · checked Sep 3, 2026
6	Cossette MediaIndirect evidence	Vancouver, BC, Canada	501-1,000	241
	Source: company website · checked Sep 3, 2026
7	Media ExpertsPartial evidence	Montreal, QC, Canada	51-200	218
	“Media Experts is a leading full-service media agency delivering integrated solutions for major Canadian brands.” Source: company website · checked Sep 3, 2026
8	DirectiveIndirect evidence	Canada	51-200	210
	“Directive elevates the focus of B2B marketers from MQLs to qualified pipeline with a proven methodology that fuels the fastest growing B2B brands in the world.” Source: company website · checked Sep 3, 2026
9	Zulu Alpha KiloIndirect evidence	Vancouver, BC, Canada	51-200	176
	“We fight sameness.” Source: company website · checked Sep 3, 2026
10	OMD CanadaIndirect evidence	Vancouver, BC, Canada	10001+	172
	“OMD combines innovation, creativity, empathy and evidence to make Better decisions, faster on behalf of our clients.” Source: company website · checked Sep 3, 2026
11	Dingus & ZazzyIndirect evidence	Leduc, AB, Canada	51-200	166
	“Running a company is a little like building a plane while flying it.” Source: company website · checked Sep 3, 2026
12	BatteryStrong evidence	Toronto, ON, Canada	51-200	157
	“3X AD AGE AGENCY OF THE YEAR \| 2025 CAMPAIGN AGENCY OF THE YEAR Battery is a full service creative advertising agency headquartered in Los Angeles with offices in Toronto, Chicago…” Source: company website · checked Sep 3, 2026
13	Tank WorldwidePartial evidence	Toronto, ON, Canada	201-500	156
	“TANK WW is a borderless creative advertising agency that specializes in crafting stories that positively impact human lives.” Source: company website · checked Sep 3, 2026
14	Community AgencyIndirect evidence	Toronto, ON, Canada	51-200	127
	“Community is a multidisciplinary marketing agency working on some of the world’s biggest brands and influential upstarts.” Source: company website · checked Sep 3, 2026
15	Point2webIndirect evidence	Toronto, Canada	51-200	111
	“Point2Web - Your Ultimate Marketing Powerhouse!” Source: company website · checked Sep 3, 2026
16	Evans HuntPartial evidence	Calgary, AB, Canada	51-200	110
	“Evans Hunt is a full-service agency that combines strategy, creativity, and technology to give our clients an unfair advantage.” Source: company website · checked Sep 3, 2026
17	BRADPartial evidence	Quebec, QC, Canada	51-200	106
	“Brad is an integrated advertising agency offering communications, marketing, strategic planning, creative, design, interactive, promotional, media, and social media services.” Source: company website · checked Sep 3, 2026
18	Essencemediacom CanadaIndirect evidence	Montreal, QC, Canada	201-500	100
	“Hello.” Source: company website · checked Sep 3, 2026
19	Bensimon ByrnePartial evidence	Toronto, ON, Canada	51-200	99
	“Bensimon Byrne was born from the vision of a strategist and creative partnership to challenge the traditional way of thinking about advertising.” Source: company website · checked Sep 3, 2026
20	CartierIndirect evidence	Montreal, QC, Canada	51-200	86
	“Agence Cartier Cartier est une agence de communication marketing basée à Montréal, qui offre des solutions inventives à ses clients.” Source: company website · checked Sep 3, 2026
21	PromotedgePartial evidence	Toronto, Canada	51-200	78
	“Welcome to PromotEdge, an integrated marketing and digital advertising agency based in Kolkata, where creativity meets strategy to drive your brand’s success.” Source: company website · checked Sep 3, 2026
22	LoknowPartial evidence	Vancouver, BC, Canada	51-200	72
	“LoKnow works alongside you, or in the background, to create impactful digital advertising campaigns.” Source: company website · checked Sep 3, 2026
23	Major TOMPartial evidence	Vancouver, BC, Canada	51-200	71
	“Major Tom is the next iteration of digital marketing, a full-service agency that’s been purpose-built to help organizations thrive in an increasingly complex landscape.” Source: company website · checked Sep 3, 2026
24	CundariIndirect evidence	Toronto, ON, Canada	51-200	56
	“Cundari is Canada’s most globally awarded independent agency.” Source: company website · checked Sep 3, 2026
25	GUT TorontoIndirect evidence	Toronto, ON, Canada	51-200	52
	“GUT is a brave agency for brave clients.” Source: company website · checked Sep 3, 2026

Showing 25 of 3,100 full-service advertising agencies based in Canada

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Full-service advertising agencies based in Canada at a glance

As of Sep 3, 2026

1-10Median size (employees)

TorontoLargest hub · 770 HQs

2,440Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

2,198

11-50

793

51-200

201-500

501-1,000

5,001-10,000

10001+

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 full-service advertising agencies, 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 “full-service advertising agencies”. 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 full-service advertising agencies, 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, 6,583 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 3, 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.

Full-service advertising agencies by metro

Full-service advertising agencies in Toronto770
Full-service advertising agencies in Vancouver265
Full-service advertising agencies in Montreal265
Full-service advertising agencies in Calgary187
Full-service advertising agencies in Edmonton101
Full-service advertising agencies in Ottawa88
Full-service advertising agencies in Mississauga70
Full-service advertising agencies in London50

Frequently asked

How many full-service advertising agencies are there based in Canada?

RevenueBase identified 3,100 full-service advertising agencies 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?

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

Which city has the most full-service advertising agencies?

Toronto leads with 770 headquartered companies, followed by Vancouver (265) and Montreal (265).

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 6,583 verified decision-maker contacts tracked across these 3,100 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 3, 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.