Company lists · Data refreshed September 2026

Top 24 Grassroots advocacy firms based in Canada

Name: Grassroots advocacy firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 42 companies tracked

RevenueBase identified 42 grassroots advocacy firms headquartered in Canada as of September 2026 and tracks 342 professional contacts across them, including 181 with verified work emails. Ottawa is the largest hub.

This list covers grassroots advocacy firms 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 20, 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 20, 2026 86% judged on-target in blind review

42Companies

342Contacts tracked

181Verified emails

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The 24 largest grassroots advocacy firms based in Canada

Ranked by team size

Top 24 of 42 grassroots advocacy firms based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to grassroots advocacy firms: 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 20, 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 20, 2026
2	Tactix Government Relations And Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 20, 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 20, 2026
3	Campaign Support	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “Campaign Support is an industry leader in the provision of integrated marketing solutions to power your message and build your brand.” Source: RevenueBase Database · checked Sep 20, 2026
4	Ryan Affaires Publiques	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Nous sommes une firme de communications stratégiques et de relations gouvernementales.” Source: RevenueBase Database · checked Sep 20, 2026
5	The NOW Group	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “We create winning campaigns for good causes.” Source: RevenueBase Database · checked Sep 20, 2026
6	NEW West Public Affairs	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	1-10	19 contacts →
	Indirect evidence “New West Public Affairs is a national public affairs firm.” Source: RevenueBase Database · checked Sep 20, 2026
7	Sylvestre Painchaud ET Associés S.E.N.C.R.L	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Ancrée dans le Sud-Ouest de Montréal depuis 1981, Sylvestre Painchaud et associés est engagée dans la promotion des droits des gens et des petites et moyennes entreprises…” Source: RevenueBase Database · checked Sep 20, 2026
8	Prospectus Associates	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “Prospectus Associates is one of Canada’s leading national public affairs consulting firms that prides itself on delivering high-end personalized service by experienced…” Source: RevenueBase Database · checked Sep 20, 2026
9	First Lake Solutions	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “First Lake Solutions provides associations, municipalities and corporations with effective government relations and media relations support.” Source: RevenueBase Database · checked Sep 20, 2026
10	United WAY Peterborough & District	Indirect evidence	Peterborough, ON, CanadaHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “United Way Peterborough & District inspires people from all walks of life to come together to raise funds, volunteer and stimulate policy and attitude changes that lead to the…” Source: RevenueBase Database · checked Sep 20, 2026
11	S&a Strategies	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “S&A doesn’t just open doors.” Source: RevenueBase Database · checked Sep 20, 2026
12	Bunyaad Public Affairs	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Welcome to BUNYAAD Public Affairs.” Source: RevenueBase Database · checked Sep 20, 2026
13	Capulet Communications	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Capulet Communications works exclusively with non-profits.” Source: RevenueBase Database · checked Sep 20, 2026
14	Policy Concepts INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “Policy Concepts is a boutique government relations and public affairs firm that helps businesses and organizations navigate government decision making and develop innovative…” Source: RevenueBase Database · checked Sep 20, 2026
15	Politraq	Partial evidence	Kingston, ON, CanadaHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “PoliTraQ is the all-in-one Advocacy Management Platform for government relations pros - manage campaigns, measure your progress, and Track Your Advocacy Impact.” Source: RevenueBase Database · checked Sep 20, 2026
16	Upstream Strategy Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Upstream Strategy Group is a full-service public relations, government relations, and strategy firm.” Source: RevenueBase Database · checked Sep 20, 2026
17	GSD Strategies	Indirect evidence	Regina, SK, CanadaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “At GSD Strategies, we specialize in tailored government relations solutions for Saskatchewan’s diverse landscape of businesses, organizations, and communities.” Source: RevenueBase Database · checked Sep 20, 2026
18	Grassroots Public Affairs	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Grassroots Public Affairs excels in helping businesses and industry associations craft and execute effective communication strategies for their government and public relation…” Source: RevenueBase Database · checked Sep 20, 2026
19	EOK Consults	Partial evidence	Toronto, CanadaHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “At EOK Consults, we help political campaigns, elected officials, advocacy organizations, municipalities, and public-facing initiatives connect with audiences through targeted…” Source: RevenueBase Database · checked Sep 20, 2026
20	TEN Brinke Consulting	Indirect evidence	Hamilton, ON, CanadaHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “At ten Brinke Consulting, our mission is to strategize, guide, and provide comprehensive political and governmental relations services.” Source: RevenueBase Database · checked Sep 20, 2026
21	samhartley.co	Indirect evidence	Ottawa, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Bring over a decade of experience in public affairs marketing to your campaign.” Source: RevenueBase Database · checked Sep 20, 2026
22	Fulcrum Advocacy	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “Fulcrum Advocacy is a full-suite government relations, public affairs, research, and digital mobilization firm.” Source: RevenueBase Database · checked Sep 20, 2026
23	Onit Consulting	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Dynamic and innovative strategist with well-established expertise designing behaviour change and public awareness campaigns.” Source: RevenueBase Database · checked Sep 20, 2026
24	Colōkia	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Nous sommes une agence spécialisée dans la création de programmes de participation publique (P2).” Source: RevenueBase Database · checked Sep 20, 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: grassroots advocacy firms. 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 grassroots advocacy firms.
Partial evidence: Its own public description names part of grassroots advocacy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grassroots advocacy firms. 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 24 of 42 grassroots advocacy firms based in Canada

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Grassroots advocacy firms based in Canada at a glance

As of Sep 20, 2026

52.9%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

21.4%Largest-city concentration · Ottawa

Sep 20, 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 42 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 grassroots advocacy firms, 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 “grassroots advocacy firms”. 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 grassroots advocacy firms), 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 grassroots advocacy firms, 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, 181 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 20, 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 grassroots advocacy firms, 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 grassroots advocacy firms are there based in Canada?

RevenueBase identified 42 grassroots advocacy firms 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 grassroots advocacy firms?

Ottawa leads with 9 headquartered companies, followed by Toronto (9) and Calgary (4).

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 181 verified decision-maker contacts tracked across these 42 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 20, 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.