Company lists · Data refreshed September 2026

Top 25 Government advertising agencies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 110 companies tracked

RevenueBase identified 110 government advertising agencies headquartered in Canada as of September 2026 and tracks 779 professional contacts across them, including 373 with verified work emails. Toronto is the largest hub.

This list covers government 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

110Companies

779Contacts tracked

373Verified emails

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The 25 largest government advertising agencies based in Canada

Ranked by team size

Top 25 of 110 government advertising agencies based in Canada, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to government advertising agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sussex Strategy Group	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	77 contacts →
	Partial evidence “Established in 1998, Sussex Strategy Group is Canada’s leading government relations, strategic communications, digital advocacy and business advisory agency.” Source: RevenueBase Database · checked Sep 14, 2026
2	Uphouse	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 14, 2026	11-50	58 contacts →
	Indirect evidence “UpHouse is an international, award-winning creative, marketing, PR and talent agency.” Source: RevenueBase Database · checked Sep 14, 2026
3	NKPR	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	46 contacts →
	Indirect evidence “Natasha Koifman created NKPR in 2002 to combine her two passions: sharing stories of substance and championing important causes.” Source: RevenueBase Database · checked Sep 14, 2026
4	Acart Communications	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 14, 2026	51-200	42 contacts →
	Indirect evidence “We’re a full-service agency helping transform brands through our expertise in strategy, media, and effective creative.” Source: RevenueBase Database · checked Sep 14, 2026
5	Spark Advocacy	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 14, 2026	11-50	41 contacts →
	Indirect evidence “To open minds, you need a clear thought.” Source: RevenueBase Database · checked Sep 14, 2026
6	Response Advertising INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	11-50	27 contacts →
	Partial evidence “Response is a one-stop-shop for advertising, market research, strategic planning, creative development, media planning and buying, media relations management, public and corporate…” Source: RevenueBase Database · checked Sep 14, 2026
7	Brown Communications Group	Indirect evidence	Regina, SK, CanadaHQ checked Sep 14, 2026	11-50	27 contacts →
	Indirect evidence “Brown Communications Group is firmly anchored in the eye of a communications storm that challenges traditional strategies, tools and tactics.” Source: RevenueBase Database · checked Sep 14, 2026
8	Morin Relations Publiques	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect evidence “Morin Relations Publiques s’est développée en fonction des besoins des clients.” Source: RevenueBase Database · checked Sep 14, 2026
9	Cipr Communications	Partial evidence	Calgary, AB, CanadaHQ checked Sep 14, 2026	1-10	16 contacts →
	Partial evidence “CIPR Communications provides successful public relations campaigns through the strategic use of digital communications and social media, media relations, government relations and…” Source: RevenueBase Database · checked Sep 14, 2026
10	Maple Leaf Strategies	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “EXPERT Government Relations.” Source: RevenueBase Database · checked Sep 14, 2026
11	Jenni Byrne Associates	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	15 contacts →
	Indirect evidence “Jenni Byrne + Associates is a full-service public affairs agency based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 14, 2026
12	Mash Strategy	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “Since 2018, Mash Strategy (formerly Mash Media) has been your full-service marketing, creative and public relations agency.” Source: RevenueBase Database · checked Sep 14, 2026
13	Monogram Communications, INC	Indirect evidence	Prince George, BC, CanadaHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “We believe in the power of meaningful connections.” Source: RevenueBase Database · checked Sep 14, 2026
14	Durrell Communications	Indirect evidence	Waterloo, ON, CanadaHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “Durrell Communications is a global public relations agency advancing the success of our clients through thoughtful and progressive communications strategies.” Source: RevenueBase Database · checked Sep 14, 2026
15	Maverick Public Relations	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	15 contacts →
	Indirect evidence “A communications agency that's as smart as it is bold, MAVERICK's full-service offering is built on a balance between strategy and creativity” Source: RevenueBase Database · checked Sep 14, 2026
16	Laboratoire Dentaire Morisset	Indirect evidence	Quebec, QC, CanadaHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “Laboratoire Dentaire Morisset is a Public Relations company located in 695 Charest Bld East, Quebec, QC, Canada.” Source: RevenueBase Database · checked Sep 14, 2026
17	Tapage	Indirect evidence	Blainville, QC, CanadaHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “Tapage s’est vite imposée grâce à des campagnes publicitaires percutantes et des actions de relations publiques efficaces, certaines lui valant même les plus grands honneurs dans…” Source: RevenueBase Database · checked Sep 14, 2026
18	Bluesky Communications INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	13 contacts →
	Indirect evidence “BlueSky Communications is a full service public relations agency, helping organizations build a presence that earns attention, trust, and lasting visibility.” Source: RevenueBase Database · checked Sep 14, 2026
19	Alinea Conversations	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 14, 2026	1-10	11 contacts →
	Indirect evidence “PR and public affairs Agency alinea ensures you get your message into the conversation with skill, tact and clarity.” Source: RevenueBase Database · checked Sep 14, 2026
20	Aucoin Stratégie & Communication	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 14, 2026	11-50	9 contacts →
	Indirect evidence “AUCOIN Stratégie & Communication est une agence de relations publiques multidisciplinaire qui se spécialise dans les enjeux d’affaires publiques.” Source: RevenueBase Database · checked Sep 14, 2026
21	LBMG	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	1-10	9 contacts →
	Indirect evidence “Our promise to you: we’ll deliver.” Source: RevenueBase Database · checked Sep 14, 2026
22	Brown & Cohen Communications & Public Affairs	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	9 contacts →
	Partial evidence “Brown & Cohen Communications & Public Affairs provides a unique blend of public relations, government relations and marketing services.” Source: RevenueBase Database · checked Sep 14, 2026
23	Coast Communications And Public Affairs	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “Coast Communications is a Canadian-owned and operated boutique PR agency located in a bright heritage building in Downtown Vancouver that combines an in-house team with top-notch…” Source: RevenueBase Database · checked Sep 14, 2026
24	Munro Thompson	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence “Munro/Thompson is a full-service communications and creative firm specializing in public relations, film production, graphic design, stakeholder engagement, and beyond.” Source: RevenueBase Database · checked Sep 14, 2026
25	C3 Labs INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: government advertising agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names government advertising agencies.
Partial evidence: Its own public description names part of government advertising agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government advertising agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 110 government advertising agencies based in Canada

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Government advertising agencies based in Canada at a glance

As of Sep 14, 2026

47.9%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

20.0%Largest-city concentration · Toronto

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 110 companies.

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 government advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “government advertising agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names government advertising agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among government 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 its RevenueBase Smart Search 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, 373 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 14, 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names government advertising agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many government advertising agencies are there based in Canada?

RevenueBase identified 110 government 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?

Sussex Strategy Group, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most government advertising agencies?

Toronto leads with 22 headquartered companies, followed by Montreal (12) and Ottawa (12).

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 373 verified decision-maker contacts tracked across these 110 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 14, 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 Smart Search, 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.