Company lists · Data refreshed September 2026

Top 25 Public affairs companies based in Canada

Name: Public affairs companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 181 companies tracked

RevenueBase identified 181 public affairs companies headquartered in Canada as of September 2026 and tracks 2,183 professional contacts across them, including 1,117 with verified work emails. Toronto is the largest hub.

This list covers public affairs companies 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 19, 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 19, 2026 86% judged on-target in blind review

181Companies

2,183Contacts tracked

1,117Verified emails

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The 25 largest public affairs companies based in Canada

Ranked by team size

Top 25 of 181 public affairs companies based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to public affairs companies: 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	National Public Relations	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	201-500	255 contacts →
	Partial evidence “NATIONAL Public Relations provides creative communications solutions that move people in thought and actions.” Source: RevenueBase Database · checked Sep 19, 2026
2	Strategycorp	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	130 contacts →
	Indirect evidence “Being right isn't enough.” Source: RevenueBase Database · checked Sep 19, 2026
3	Navigator LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	93 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
4	Sussex Strategy Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	77 contacts →
	Indirect 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 19, 2026
5	PAA Advisory Conseils	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	67 contacts →
	Strong evidence “PAA is a national public affairs and strategic communications firm.” Source: RevenueBase Database · checked Sep 19, 2026
6	Alberta Counsel	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	11-50	44 contacts →
	Partial evidence “Alberta Counsel offers effective public relations and legal services to our clients, from new ventures and not-for-profits to municipalities and multinational corporations.” Source: RevenueBase Database · checked Sep 19, 2026
7	Argyle	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	42 contacts →
	Partial evidence “For more than 40 years, Argyle has been chosen by the world’s biggest brands, put big ideas onto the public agenda, and grown to become one of North America’s largest and most…” Source: RevenueBase Database · checked Sep 19, 2026
8	Spark Advocacy	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	41 contacts →
	Indirect evidence “To open minds, you need a clear thought.” Source: RevenueBase Database · checked Sep 19, 2026
9	Rubicon Strategy INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	40 contacts →
	Partial evidence “We’re a team of trusted advisors and strategists who understand government, public opinion and how to shape decisions at the highest levels.” Source: RevenueBase Database · checked Sep 19, 2026
10	Emerging AG INC	Strong evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	36 contacts →
	Strong evidence “Emerging Ag is a boutique international consulting firm providing communications and public affairs services to clients in the agriculture, food, and health sectors.” Source: RevenueBase Database · checked Sep 19, 2026
11	Tactix Government Relations And Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	36 contacts →
	Indirect evidence “For over 25 years TACTIX has been a trusted advisor to leading Canadian and Fortune 500 companies, offering unparalleled experience in solving complex government relations threats…” Source: RevenueBase Database · checked Sep 19, 2026
12	Mcmillan Vantage	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “When you have a pressing challenge, McMillan Vantage has the senior expertise with a deep understanding of what you need to know, when you need it most.” Source: RevenueBase Database · checked Sep 19, 2026
13	Wellington Advocacy	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Strong evidence “Wellington Advocacy is a national, full-service public affairs firm shaping government policy and public opinion for business leaders and global brands.” Source: RevenueBase Database · checked Sep 19, 2026
14	Catapulte	Strong evidence	Québec, QC, CanadaHQ checked Sep 19, 2026	11-50	31 contacts →
	Strong evidence “Fondée en 2010, Catapulte est une agence spécialisée en affaires publiques, en relations gouvernementales et en acceptabilité sociale.” Source: RevenueBase Database · checked Sep 19, 2026
15	Compass Rose	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	30 contacts →
	Strong evidence “Compass Rose is a public affairs firm where helping companies and organizations find the common good is at the core of who we are and what we do.” Source: RevenueBase Database · checked Sep 19, 2026
16	Impact Public Affairs Canada	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Strong evidence “Building relationships for over 25 years, Impact Public Affairs is a full-service Canadian firm, based in Ottawa with offices in Toronto, Montreal, Vancouver, Calgary, and Halifax.” Source: RevenueBase Database · checked Sep 19, 2026
17	Kaiser & Partners, INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “In a complicated and constantly evolving world, clear and meaningful communications have never been more important.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ryan Affaires Publiques	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Nous sommes une firme de communications stratégiques et de relations gouvernementales.” Source: RevenueBase Database · checked Sep 19, 2026
19	Morin Relations Publiques	Partial evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “Morin Relations Publiques s’est développée en fonction des besoins des clients.” Source: RevenueBase Database · checked Sep 19, 2026
20	Pathway Group	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	25 contacts →
	Strong evidence “A multi-national public affairs firm providing corporations, associations, and not-for-profit organizations with strategic advice and support in building connections to influence…” Source: RevenueBase Database · checked Sep 19, 2026
21	Sandstone Group	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	24 contacts →
	Strong evidence “Sandstone Group Sandstone Group, based in Ottawa, specializes in providing strategic advice to corporate executives in matters of public affairs, government relations, crisis…” Source: RevenueBase Database · checked Sep 19, 2026
22	Copticom, Stratégies ET Relations Publiques	Strong evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	11-50	23 contacts →
	Strong evidence “COPTICOM, Stratégies et relations publiques, est une firme de services-conseils spécialisée dans les dossiers d’affaires publiques.” Source: RevenueBase Database · checked Sep 19, 2026
23	Mercure	Strong evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	11-50	20 contacts →
	Strong evidence “MERCURE Conseil est une firme-conseil boutique spécialisée en affaires publiques et gouvernementales ainsi qu’en communication corporative et financière.” Source: RevenueBase Database · checked Sep 19, 2026
24	Porter O'brien	Indirect evidence	Fredericton, NB, CanadaHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “Helping you shape policy, reputation and growth.” Source: RevenueBase Database · checked Sep 19, 2026
25	NEW West Public Affairs	Strong evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	1-10	19 contacts →
	Strong evidence “New West Public Affairs is a national public affairs firm.” Source: RevenueBase Database · checked Sep 19, 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: public affairs companies. 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 public affairs companies.
Partial evidence: Its own public description names part of public affairs companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public affairs companies. 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 181 public affairs companies based in Canada

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Public affairs companies based in Canada at a glance

As of Sep 19, 2026

51.2%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

29.8%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

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 181 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 public affairs companies, 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 “public affairs companies”. 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 public affairs companies), 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 public affairs companies, 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, 1,117 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 19, 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.

Public affairs companies by metro

Public affairs companies in Toronto54
Public affairs companies in Ottawa37

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 public affairs companies, 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 public affairs companies are there based in Canada?

RevenueBase identified 181 public affairs companies 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?

National Public Relations, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most public affairs companies?

Toronto leads with 54 headquartered companies, followed by Ottawa (37) and Montreal (21).

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 1,117 verified decision-maker contacts tracked across these 181 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 19, 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.