Company lists · Data refreshed September 2026
Top 25 Media agencies based in Canada
RevenueBase identified 1,983 media agencies headquartered in Canada as of September 2026 and tracks 24,202 professional contacts across them, including 7,572 with verified work emails and 2,667 with mobile numbers. Toronto is the largest hub.
This list covers media 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 5, 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.
The 25 largest media agencies based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,671 | ||||
“Other.™ is a modern integrated media agency built for marketers who need more from their agency partner.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,682 | ||||
“We’re Critical Mass.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 731 | ||||
“Founded in 1972, DAC has spent more than 50 years connecting brands with their audiences-wherever they are.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 671 | ||||
“Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 409 | ||||
“Rethink is one of the world’s leading independent creative agencies that relentlessly pursues work the world talks about.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 355 | ||||
“We develop strategic, creative solutions that aren’t afraid of challenging tradition, because the way we see it – great marketing shouldn’t have to feel like marketing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 304 | ||||
“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 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 275 | ||||
“We believe in a world where bold creativity inspires bright ideas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 250 | ||||
“Diamond is an award-winning integrated creative agency headquartered in Toronto, Ontario.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 248 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 216 | ||||
“Founded in 2021, Plus Company is a carefully curated collective of elite agencies engineered for maximum impact in today’s dynamic landscape.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 212 | ||||
“Media Experts is a leading full-service media agency delivering integrated solutions for major Canadian brands.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Harvard MediaStrong evidence | 204 | |||
“Harvard Media has been innovating in the media and advertising space for 40+ years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 175 | ||||
“Founded in 2009, INNOCEAN Canada is a full-service advertising agency based out of Toronto and Montreal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 167 | ||||
“OMD combines innovation, creativity, empathy and evidence to make Better decisions, faster on behalf of our clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 166 | ||||
“Running a company is a little like building a plane while flying it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 159 | ||||
“We plan, build, and optimize online advertising campaigns that reach millions of people on platforms like Google, Facebook, Instagram, YouTube, Pinterest, Snapchat and more.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 156 | ||||
“For over 50 years, Saatchi & Saatchi has been where the world’s greatest brands have come for the biggest, world-changing ideas.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 153 | ||||
“HAWK is one of Atlantic Canada’s leading marketing agencies, delivering work on a national scale for household names like Royale.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 125 | ||||
“Community is a multidisciplinary marketing agency working on some of the world’s biggest brands and influential upstarts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 122 | ||||
“We are strategic copilots who drive business growth and advertising effectiveness by giving Canadian brands A Head Start.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 105 | ||||
“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 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 105 | ||||
“Bloom is a team of performance-obsessed marketers, and we excel at delivering exceptional results for our clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 101 | ||||
“Hello.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,983 media agencies based in Canada
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Media agencies based in Canada at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 media 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 “media 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 media 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, 7,572 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 5, 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.
Media agencies by metro
- Media agencies in Toronto556
- Media agencies in Montreal200
- Media agencies in Vancouver171
- Media agencies in Calgary102
- Media agencies in Edmonton51
- Media agencies in Ottawa51
- Media agencies in Mississauga46
- Media agencies in Quebec30
- Media agencies in London27
- Media agencies in Oakville27
- Media agencies in Victoria26
- Media agencies in Winnipeg25
Frequently asked
How many media agencies are there based in Canada?
RevenueBase identified 1,983 media 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 media agencies?
Toronto leads with 556 headquartered companies, followed by Montreal (200) and Vancouver (171).
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 7,572 verified decision-maker contacts tracked across these 1,983 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 5, 2026.
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Media agencies by geography
- Media agencies based in the United States
- Media agencies based in Brazil
- Media agencies based in the United Kingdom
- Media agencies based in Germany
- Media agencies based in France
- Media agencies based in Spain
- Media agencies based in Italy
- Media agencies based in Australia
- Media agencies based in Mexico
- Media agencies based in the Netherlands
- Media agencies based in Argentina
- Media agencies based in South Africa
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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.