Company lists · Data verified August 2026

Top 25 Advertising agencies based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 78 companies tracked

There are 78 advertising agencies headquartered in Ottawa, Canada (RevenueBase, August 2026). RevenueBase tracks 465 professional contacts across them, including 173 with verified work emails and 64 with mobile numbers. Toronto is the largest hub.

This list covers advertising agencies headquartered in Ottawa, 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.

78Companies

465Contacts tracked

173Verified emails

64Mobile numbers

Unlock all 78 companies Free account · no credit card · 2 minutes

The 25 largest advertising agencies based in Ottawa, Canada

Ranked by team size

Top 25 of 78 advertising agencies based in Ottawa, 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	Banfield	Ottawa, ON	11-50	82	26
2	Acart Communications	Ottawa, ON	51-200	42	27
3	Accurate Creative	Ottawa	11-50	29	12
4	Digitalise	Ottawa, ON	11-50	24	1
5	Syntax Strategic	Ottawa, ON	11-50	23	16
6	Truedotdesign	Ottawa, ON	11-50	19	14
7	Mediaplus Advertising	Ottawa	11-50	17	6
8	Emdash	Ottawa	11-50	12	8
9	Gordongroup Taag	Ottawa, ON	11-50	12	4
10	Cayenne Creative Canada's Spiciest Brand & Marketing Agency	Ottawa, ON	1-10	10	4
11	Duco Media & Technology Solutions	Ottawa, ON	1-10	9	2
12	Inkline	Ottawa, ON	1-10	8	8
13	AD Caffeine Digital Marketing	Ottawa, ON	11-50	8	7
14	Target Insight	Ottawa, ON	1-10	8	1
15	Ayaya Marketing And Communications	Ottawa, ON	11-50	6	3
16	Meerkat Marketing	Ottawa, ON	1-10	6	3
17	Blackiron Agency	Ottawa, ON	11-50	6	1
18	Onefish Creative Branding, Graphic Design & WEB Design	Ottawa, ON	1-10	5	4
19	Kolo Agency	Ottawa, ON	1-10	5	1
20	Billingham Agency	Ottawa, ON	1-10	4	4
21	Excentric Agency	Ottawa, ON	1-10	4	3
22	Marketing Breakthroughs	Ottawa, ON	11-50	3	2
23	Ryan Smith Creative	Ottawa, ON	1-10	3	1
24	I-Tag Promotions INC	Ottawa, ON	1-10	3	1
25	Electric Medialand	Ottawa, ON	1-10	3	1

Showing 25 of 78 advertising agencies based in Ottawa, Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 173 reachable decision-makers.

Free account · no credit card

See all 78 companies

Advertising agencies based in Ottawa, Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 850 HQs

64Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

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 Ottawa, 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; 0 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 Ottawa, Canada?

There are 78 advertising agencies headquartered in Ottawa, Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Banfield, headquartered in Ottawa, 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 173 verified decision-maker contacts tracked across these 78 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.

Ready to reach these companies? Verified emails and direct dials for all 78 advertising agencies based in Ottawa, Canada. Start with a free account, no credit card.

Get the full list

Related lists

Advertising agencies by geography

Browse the directory

Browse: Companies home · Advertising agencies in Canada · All Canada lists · All Advertising agencies lists · New lists

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.