Company lists · Data verified August 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 Verified Aug 28, 2026 101 companies tracked

There are 101 advocacy consulting firms headquartered in Toronto, Canada (RevenueBase, August 2026). RevenueBase tracks 919 professional contacts across them, including 518 with verified work emails and 90 with mobile numbers. 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. Data current as of August 28, 2026.

101Companies

919Contacts tracked

518Verified emails

90Mobile numbers

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The 25 largest advocacy consulting firms based in Toronto, Canada

Ranked by team size

Top 25 of 101 advocacy consulting firms based in Toronto, 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	HJC	Toronto	11-50	91	7
3	Sussex Strategy Group	Toronto, ON	51-200	77	55
4	Wellington Advocacy	Toronto, ON	11-50	36	30
5	Tactix Government Relations And Public Affairs	Toronto, ON	11-50	36	20
6	Gilbert's LLP	Toronto, ON	11-50	33	21
7	Agnostic	Toronto, ON	11-50	31	22
8	Barnes Management Group	Toronto, ON	11-50	26	18
9	Pathway Group	Toronto, ON	11-50	25	9
10	Babin Bessner Spry LLP	Toronto, ON	11-50	24	23
11	Iler Campbell LLP	Toronto, ON	11-50	19	10
12	Maple Leaf Strategies	Toronto, ON	11-50	16	9
13	Addario LAW Group LLP	Toronto, ON	11-50	15	11
14	Coutts Crane	Toronto, ON	11-50	15	9
15	Springboard Policy	Toronto, ON	11-50	9	9
16	Loyalist Public Affairs	Toronto, ON	11-50	9	8
17	Rosen Sunshine LLP	Toronto, ON	1-10	8	7
18	Aurora Strategy Global	Toronto, ON	11-50	7	7
19	Hansell Mclaughlin Advisory Group	Toronto, ON	11-50	6	6
20	Policy Concepts INC	Toronto, ON	1-10	5	5
21	Lbcg Consulting For Impact	Toronto, ON	1-10	5	1
22	Kingsun LAW	Toronto, ON	1-10	5	1
23	Pursuit Advisory Partners INC	Toronto, ON	1-10	4	4
24	Upstream Strategy Group	Toronto, ON	1-10	4	3
25	Ecclestone, Hamer, Poisson, Neuwald & Freeman	Toronto, ON	11-50	3	3

Showing 25 of 101 advocacy consulting firms based in Toronto, Canada

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Advocacy consulting firms based in Toronto, Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 101 HQs

90Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Advocacy consulting firms by metro in Canada

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 Toronto, 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; 2 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 Toronto, Canada?

There are 101 advocacy consulting firms headquartered in Toronto, 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 518 verified decision-maker contacts tracked across these 101 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.