Company lists · Data refreshed September 2026

Top 25 Legislative consulting firms based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 46 companies tracked

RevenueBase identified 46 legislative consulting firms headquartered in Ottawa, Canada as of September 2026 and tracks 530 professional contacts across them, including 231 with verified work emails and 53 with mobile numbers. Ottawa is the largest hub.

This list covers legislative consulting firms headquartered in Ottawa, 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 12, 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 12, 2026 86% judged on-target in blind review

46Companies

530Contacts tracked

231Verified emails

53Mobile numbers

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The 25 largest legislative consulting firms based in Ottawa, Canada

Ranked by team size

Top 25 of 46 legislative consulting firms based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to legislative 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	Earnscliffe Strategies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	51-200	84 contacts →
	Indirect evidence “Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.” Source: RevenueBase Database · checked Sep 12, 2026
2	Tactix Government Relations And Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 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 12, 2026
3	Compass Rose	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	30 contacts →
	Indirect 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 12, 2026
4	Sandstone Group	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	24 contacts →
	Indirect 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 12, 2026
5	49 Solutions	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	19 contacts →
	Partial evidence “At 49 Solutions we consistently deliver top quality consulting services, supporting both business and technology.” Source: RevenueBase Database · checked Sep 12, 2026
6	Bluesky Strategy Group INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	18 contacts →
	Indirect evidence “Bluesky Strategy Group delivers public affairs, strategic communications, government relations, and media relations advice and execution.” Source: RevenueBase Database · checked Sep 12, 2026
7	Maple Leaf Strategies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	16 contacts →
	Indirect evidence “EXPERT Government Relations.” Source: RevenueBase Database · checked Sep 12, 2026
8	Blackbird Strategies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	12 contacts →
	Indirect evidence “Blackbird Strategies is a full-service, values-driven public affairs firm specializing in working with First Nations, businesses, associations, Indigenous communities, and others…” Source: RevenueBase Database · checked Sep 12, 2026
9	Prospectus Associates	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	12 contacts →
	Partial 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 12, 2026
10	3sixty Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	11 contacts →
	Indirect evidence “3Sixty Public Affairs, with consultants in Western Canada, Ontario and Québec, is Canada's leader in health sector-focused policy, public affairs and advocacy.” Source: RevenueBase Database · checked Sep 12, 2026
11	Arctech Accelerate	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	11 contacts →
	Partial evidence “Headquartered in our nation’s capital, Arctech Accelerate is a Canadian management consulting and lobbying firm specializing in helping small and mid-sized businesses navigate…” Source: RevenueBase Database · checked Sep 12, 2026
12	First Lake Solutions	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 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 12, 2026
13	The Halifax Group	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	11-50	10 contacts →
	Partial evidence “The Halifax Group is a multi-service consulting company.” Source: RevenueBase Database · checked Sep 12, 2026
14	Northstar Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	9 contacts →
	Indirect evidence “NorthStar Public Affairs is a boutique public affairs agency which services those in need of smart, effective strategies and support for navigating Canadian politics and…” Source: RevenueBase Database · checked Sep 12, 2026
15	Winston Wilmont	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “Winston Wilmont is a bespoke public affairs consultancy operating at the intersection of strategy, advocacy and communications.” Source: RevenueBase Database · checked Sep 12, 2026
16	Rkestra	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	6 contacts →
	Indirect evidence “RKESTRA is a collective of senior public affairs, government relations, strategic communications, and business development professionals.” Source: RevenueBase Database · checked Sep 12, 2026
17	The Parliamentary Group	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	6 contacts →
	Indirect evidence “Government Relations firm based in Ottawa, Canada.” Source: RevenueBase Database · checked Sep 12, 2026
18	KIT Public Affairs	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	4 contacts →
	Partial evidence “We’re an independent consulting firm that provides expert, affordable public and government relations services including: Advocacy Grants and Funding Support Policy Communications…” Source: RevenueBase Database · checked Sep 12, 2026
19	Capital Park Consulting INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	3 contacts →
	Partial evidence “Capital Park offers its clients a full range of management consulting services from strategic planning to project management support and evaluation of program results.” Source: RevenueBase Database · checked Sep 12, 2026
20	Cyrus Echo	Partial evidence	Ottawa, CanadaHQ checked Sep 12, 2026	1-10	2 contacts →
	Partial evidence “is a management consulting firm that has served the public sector exclusively since 1996.” Source: RevenueBase Database · checked Sep 12, 2026
21	Monk Associates	Indirect evidence	Ottawa, CanadaHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence “Experience.” Source: RevenueBase Database · checked Sep 12, 2026
22	Lighthouse Public Affairs Canada	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence “Lighthouse Public Affairs is a boutique firms located in Canada's capital.” Source: RevenueBase Database · checked Sep 12, 2026
23	Connect Public Affairs	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence “Connect Public Affairs combines more than 20 years’ experience in government and politics with extensive research, competitive intelligence and strategic foresight to help…” Source: RevenueBase Database · checked Sep 12, 2026
24	Riddick Investments And Consulting	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 12, 2026	1-10	1 contacts →
	Partial evidence “RIDDICK Investments and Consulting is an Ottawa-based consulting firm that has been delivering solutions to clients since 2019.” Source: RevenueBase Database · checked Sep 12, 2026
25	Applestone Manor INC	Indirect evidence	Ottawa, CanadaHQ checked Sep 12, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 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: legislative 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 legislative consulting firms.
Partial evidence: Its own public description names part of legislative consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legislative 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 46 legislative consulting firms based in Ottawa, Canada

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Legislative consulting firms based in Ottawa, Canada at a glance

As of Sep 12, 2026

43.6%Verified-email coverage

10.0%Mobile-number coverage

11.5Average contacts per company

1-10Median size (employees)

89.1%Largest-city concentration · Ottawa

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1940–30

3731–60

061–90

090–180

0180+

Company record updated

Median 51.0d

00–30

33431–60

13561–90

3890–180

23180+

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 legislative 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 Ottawa, Canada whose own description of what they do matches “legislative 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 legislative 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 legislative consulting firms, and records with no verified work email. Companies headquartered outside Ottawa 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, 231 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 12, 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.

Legislative consulting firms by metro in Canada

Legislative consulting firms in Ottawa41
Legislative consulting firms in Toronto41

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 legislative 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 legislative consulting firms are there based in Ottawa, Canada?

RevenueBase identified 46 legislative consulting firms headquartered in Ottawa, 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?

Earnscliffe Strategies, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most legislative consulting firms?

Ottawa leads with 41 headquartered companies, followed by Toronto (41) and Montreal (15).

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 231 verified decision-maker contacts tracked across these 46 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 12, 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.