Company lists · Data refreshed September 2026

Top 25 Advocacy consulting firms based in Toronto, Canada

Name: Advocacy consulting firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 102 companies tracked

RevenueBase identified 102 advocacy consulting firms headquartered in Toronto, Canada as of September 2026 and tracks 1,365 professional contacts across them, including 711 with verified work emails. Toronto is the largest hub.

This list covers advocacy consulting firms headquartered in Toronto, 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

102Companies

1,365Contacts tracked

711Verified emails

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The 25 largest advocacy consulting firms based in Toronto, Canada

Ranked by team size

Top 25 of 102 advocacy consulting firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to advocacy consulting 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	Lenczner Slaght	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	217 contacts →
	Indirect evidence “Widely recognized as Canada’s leading litigation practice, we have successfully represented clients’ interests in some of the most complex, high-profile cases in Canadian legal…” Source: RevenueBase Database · checked Sep 14, 2026
2	Strategycorp	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	130 contacts →
	Indirect evidence “Being right isn't enough.” Source: RevenueBase Database · checked Sep 14, 2026
3	Enterprise Canada	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	101 contacts →
	Indirect evidence “Enterprise is a national strategic communications firm with offices in Toronto, Ottawa, Edmonton, Halifax and Niagara.” Source: RevenueBase Database · checked Sep 14, 2026
4	HJC	Partial evidence	Toronto, CanadaHQ checked Sep 14, 2026	11-50	90 contacts →
	Partial evidence “Our mission is to provide leadership to nonprofit organizations in using new technologies to market, fundraise, advocate and brand build more effectively.” Source: RevenueBase Database · checked Sep 14, 2026
5	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
6	Rubicon Strategy INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	40 contacts →
	Indirect 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 14, 2026
7	Wellington Advocacy	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	34 contacts →
	Partial 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 14, 2026
8	Gilbert's LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	33 contacts →
	Indirect evidence “Gilbert's LLP is an agile, energetic law firm with an astonishing track record.” Source: RevenueBase Database · checked Sep 14, 2026
9	Agnostic	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	31 contacts →
	Indirect evidence “At Agnostic, we believe there's always room for better thinking.” Source: RevenueBase Database · checked Sep 14, 2026
10	Barnes Management Group	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	26 contacts →
	Partial evidence “Barnes Management Group (BMG) is a management consulting agency located in Toronto, Canada.” Source: RevenueBase Database · checked Sep 14, 2026
11	Babin Bessner Spry LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect evidence “TOP-TIER LITIGATORS : EXPERIENCE, CREATIVITY & DEDICATION At Babin Bessner Spry we pride ourselves on crafting the right answer for each legal problem, whether you need an…” Source: RevenueBase Database · checked Sep 14, 2026
12	Pathway Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect 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 14, 2026
13	Temple Scott Associates INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “Temple Scott Associates (TSA) is a leading public relations and government relations firm.” Source: RevenueBase Database · checked Sep 14, 2026
14	Iler Campbell LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “We are proud to be Ontario’s go-to counsel for progressive organizations of all types and sizes: from innovative affordable housing developers and groundbreaking community power…” Source: RevenueBase Database · checked Sep 14, 2026
15	Addario LAW Group LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “We are a group of smart, energetic advocates committed to finding innovative ways to help clients solve problems.” Source: RevenueBase Database · checked Sep 14, 2026
16	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
17	Coutts Crane	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	15 contacts →
	Partial evidence “Coutts Crane provides results-oriented representation and advocacy for our clients.” Source: RevenueBase Database · checked Sep 14, 2026
18	Clear Strategy	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “In today’s world, an organization’s ability to grow and innovate is shaped by an increasingly complex public affairs landscape that’s become more decentralized, more democratized…” Source: RevenueBase Database · checked Sep 14, 2026
19	Mathers Mchenry & CO	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	12 contacts →
	Indirect evidence “The lawyers of Mathers McHenry & Co.” Source: RevenueBase Database · checked Sep 14, 2026
20	Brown & Cohen Communications & Public Affairs	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	9 contacts →
	Indirect 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
21	Aurora Strategy Global	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “Helping you get your message before the right audience at the right time is what we do.” Source: RevenueBase Database · checked Sep 14, 2026
22	Springboard Policy	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “Springboard is a public policy firm that helps organizations understand and shape the public policy that matters to them.” Source: RevenueBase Database · checked Sep 14, 2026
23	Loyalist Public Affairs	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “Loyalist Public Affairs is a boutique government relations and strategic communication firm located in Ottawa and Toronto.” Source: RevenueBase Database · checked Sep 14, 2026
24	Rosen Sunshine LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence “Rosen Sunshine LLP is a boutique health law firm.” Source: RevenueBase Database · checked Sep 14, 2026
25	Hansell Mclaughlin Advisory Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	6 contacts →
	Indirect evidence “Hansell McLaughlin has senior level expertise in law, governance, government and regulatory affairs, and strategic communications, complemented by expertise in data science and…” 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: advocacy consulting 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 advocacy consulting firms.
Partial evidence: Its own public description names part of advocacy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advocacy consulting 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 25 of 102 advocacy consulting firms based in Toronto, Canada

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Advocacy consulting firms based in Toronto, Canada at a glance

As of Sep 14, 2026

52.1%Verified-email coverage

13.4Average contacts per company

1-10Median size (employees)

100.0%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 across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 102 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 advocacy consulting 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 Toronto, Canada whose own description of what they do matches “advocacy consulting 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 advocacy consulting 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 advocacy consulting firms, and records with no verified work email. Companies headquartered outside Toronto 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, 711 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.

Advocacy consulting firms by metro in Canada

Advocacy consulting firms in Toronto102
Advocacy consulting firms in Ottawa62
Advocacy consulting firms in Montreal35
Advocacy consulting firms in Vancouver34
Advocacy consulting firms in Calgary27

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 advocacy consulting 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 advocacy consulting firms are there based in Toronto, Canada?

RevenueBase identified 102 advocacy consulting firms headquartered in Toronto, 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?

Lenczner Slaght, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most advocacy consulting firms?

Toronto leads with 102 headquartered companies, followed by Ottawa (62) and Montreal (35).

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 711 verified decision-maker contacts tracked across these 102 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.