Company lists · Data refreshed September 2026

Top 25 Communications consulting companies based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 57 companies tracked

RevenueBase identified 57 communications consulting companies headquartered in Ottawa, Canada as of September 2026 and tracks 558 professional contacts across them, including 269 with verified work emails. Toronto is the largest hub.

This list covers communications consulting companies 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 19, 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 19, 2026 86% judged on-target in blind review

57Companies

558Contacts tracked

269Verified emails

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The 25 largest communications consulting companies based in Ottawa, Canada

Ranked by team size

Top 25 of 57 communications consulting companies based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to communications consulting companies: 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 19, 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 19, 2026
2	PAA Advisory Conseils	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	67 contacts →
	Partial evidence “PAA is a national public affairs and strategic communications firm.” Source: RevenueBase Database · checked Sep 19, 2026
3	Impact Public Affairs Canada	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Building relationships for over 25 years, Impact Public Affairs is a full-service Canadian firm, based in Ottawa with offices in Toronto, Montreal, Vancouver, Calgary, and Halifax.” Source: RevenueBase Database · checked Sep 19, 2026
4	Sandstone Group	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 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 19, 2026
5	Bluesky Strategy Group INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Bluesky Strategy Group delivers public affairs, strategic communications, government relations, and media relations advice and execution.” Source: RevenueBase Database · checked Sep 19, 2026
6	STIFF	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Stiff is a strategic communications agency.” Source: RevenueBase Database · checked Sep 19, 2026
7	Maple Leaf Strategies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “EXPERT Government Relations.” Source: RevenueBase Database · checked Sep 19, 2026
8	Blackbird Strategies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 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 19, 2026
9	Emdash	Partial evidence	Ottawa, CanadaHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “Strategy Branding & Design Campaigns & Content Media Relations Digital Advertising Crisis Communications Social Media Training & Workshops” Source: RevenueBase Database · checked Sep 19, 2026
10	Vision2voice Communications INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	11 contacts →
	Partial evidence “At Vision2Voice, we help leaders and communication teams reimagine internal communication for today’s world of work.” Source: RevenueBase Database · checked Sep 19, 2026
11	The Halifax Group	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “The Halifax Group is a multi-service consulting company.” Source: RevenueBase Database · checked Sep 19, 2026
12	Niva INC	Indirect evidence	Ottawa, CanadaHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “NIVA helps organizations and companies to engage their audience and tell their story so they can mobilize knowledge, solve problems, influence outcomes, and win markets.” Source: RevenueBase Database · checked Sep 19, 2026
13	Winston Wilmont	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “Winston Wilmont is a bespoke public affairs consultancy operating at the intersection of strategy, advocacy and communications.” Source: RevenueBase Database · checked Sep 19, 2026
14	Rkestra	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “RKESTRA is a collective of senior public affairs, government relations, strategic communications, and business development professionals.” Source: RevenueBase Database · checked Sep 19, 2026
15	Thornley Fallis Communications	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Thornley Fallis and 76design provide clients with the communications expertise to succeed in the connected era: strategy, design, video, social media, content marketing, and PR.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ne&s Networks, Economics & Strategy	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Networks, Economics & Strategy is a leading international consulting firm specializing in strategy and policy development for the telecommunications and technology industries.” Source: RevenueBase Database · checked Sep 19, 2026
17	Pendulum Group	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Canada's premier communications firm.” Source: RevenueBase Database · checked Sep 19, 2026
18	KOW Connected	Indirect evidence	Ottawa, CanadaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “For over 25 years, KoW Connected has helped Ottawa's most recognized organizations tell their stories, raise funds, fill rooms, and build lasting reputations.” Source: RevenueBase Database · checked Sep 19, 2026
19	KIT Public Affairs	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	4 contacts →
	Strong 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 19, 2026
20	Koch And Kahkonen Communications	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Our communications agency offers a variety of services; from creating custom strategic communication plans tailored to meet your business goals, to implementation and social media…” Source: RevenueBase Database · checked Sep 19, 2026
21	Frontline Communications INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “FRONTLINE COMMUNICATIONS INC Providing Clear Communications” Source: RevenueBase Database · checked Sep 19, 2026
22	Lighthouse Public Affairs Canada	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Lighthouse Public Affairs is a boutique firms located in Canada's capital.” Source: RevenueBase Database · checked Sep 19, 2026
23	Phrase Strategy	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Phrase Strategy Inc.” Source: RevenueBase Database · checked Sep 19, 2026
24	Proud North Communications INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “We proudly build Canadian brands.” Source: RevenueBase Database · checked Sep 19, 2026
25	Matt-A-Graphics INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “Marketing and communications company providing private sector and government clients with tools, structure, financing, and strategy to function and communicate more effectively…” Source: RevenueBase Database · checked Sep 19, 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: communications consulting companies. 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 communications consulting companies.
Partial evidence: Its own public description names part of communications consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name communications consulting companies. 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 57 communications consulting companies based in Ottawa, Canada

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Communications consulting companies based in Ottawa, Canada at a glance

As of Sep 19, 2026

48.2%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

333.3%Largest-city concentration · Toronto

Sep 19, 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 Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 57 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 communications consulting companies, 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 “communications consulting companies”. 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 communications consulting companies), 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 communications consulting companies, 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, 269 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 19, 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.

Communications consulting companies by metro in Canada

Communications consulting companies in Toronto190
Communications consulting companies in Montreal80
Communications consulting companies in Ottawa57
Communications consulting companies in Vancouver48
Communications consulting companies in Calgary45

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 communications consulting companies, 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 communications consulting companies are there based in Ottawa, Canada?

RevenueBase identified 57 communications consulting companies 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 communications consulting companies?

Toronto leads with 190 headquartered companies, followed by Montreal (80) and Ottawa (57).

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 269 verified decision-maker contacts tracked across these 57 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 19, 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.