Company lists · Data verified August 2026

Top 25 Advocacy consulting firms based in Canada

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 392 companies tracked

There are 392 advocacy consulting firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 3,209 professional contacts across them, including 1,674 with verified work emails and 355 with mobile numbers. Toronto is the largest hub.

This list covers advocacy consulting firms headquartered in 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.

392Companies

3,209Contacts tracked

1,674Verified emails

355Mobile numbers

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The 25 largest advocacy consulting firms based in Canada

Ranked by team size

Top 25 of 392 advocacy consulting firms based in 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	Lenczner Slaght	Toronto, ON	51-200	214	160
2	TACT	Montreal, QC	51-200	174	100
3	Strategycorp	Ottawa, ON	51-200	127	100
4	Davis Pier Consulting	Halifax, NS	51-200	125	87
5	Enterprise Canada	Ottawa, ON	51-200	101	57
6	HJC	Toronto	11-50	91	7
7	Stratcom Strategic Communications INC	Vancouver, BC	51-200	86	2
8	Earnscliffe Strategies	Ottawa, ON	51-200	78	59
9	Sussex Strategy Group	Toronto, ON	51-200	77	55
10	PAA Advisory Conseils	Montreal, QC	11-50	66	49
11	Spark Advocacy	Ottawa, ON	11-50	40	23
12	Rubicon Strategy INC	Ottawa, ON	11-50	39	31
13	Wellington Advocacy	Toronto, ON	11-50	36	30
14	Emerging AG INC	Calgary, AB	11-50	36	25
15	Tactix Government Relations And Public Affairs	Toronto, ON	11-50	36	20
16	Mcmillan Vantage	Ottawa, ON	11-50	35	29
17	Gilbert's LLP	Toronto, ON	11-50	33	21
18	Catapulte	Quebec, QC	11-50	32	19
19	Mcewan Partners	Vancouver, BC	11-50	30	24
20	Compass Rose	Ottawa, ON	11-50	30	19
21	Barnes Management Group	Toronto, ON	11-50	26	18
22	Pathway Group	Toronto, ON	11-50	25	9
23	Ryan Affaires Publiques	Montreal, QC	11-50	24	17
24	Copticom, Stratégies ET Relations Publiques	Montreal, QC	11-50	24	12
25	Conway Baxter Wilson LLP S.R.L	Ottawa, ON	11-50	22	18

Showing 25 of 392 advocacy consulting firms based in Canada

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Advocacy consulting firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 101 HQs

355Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

303

11-50

51-200

Advocacy consulting firms by metro

Metro	Companies
Advocacy consulting firms in Toronto	101
Advocacy consulting firms in Ottawa	58
Advocacy consulting firms in Montreal	42
Advocacy consulting firms in Vancouver	35
Advocacy consulting firms in Calgary	28
Advocacy consulting firms in Edmonton	9
Advocacy consulting firms in Saskatoon	8
Advocacy consulting firms in Quebec	7

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 “advocacy consulting firms”, with match quality audited by blind human judging, and headquartered in 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; 11 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 advocacy consulting firms are there based in Canada?

There are 392 advocacy consulting firms headquartered in Canada as of August 2026 (RevenueBase).

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 101 headquartered companies, followed by Ottawa (58) and Montreal (42).

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 1,674 verified decision-maker contacts tracked across these 392 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.

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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.