Company lists · Data refreshed September 2026
Top 12 Full-service public relations firms based in Ottawa, Canada
RevenueBase identified 25 full-service public relations firms headquartered in Ottawa, Canada as of September 2026 and tracks 301 professional contacts across them, including 166 with verified work emails. Toronto is the largest hub.
This list covers full-service public relations 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 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.
The 12 largest full-service public relations firms based in Ottawa, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 67 contacts → | ||||
Partial evidence “PAA is a national public affairs and strategic communications firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 41 contacts → | ||||
Indirect evidence “To open minds, you need a clear thought.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 34 contacts → | ||||
Indirect evidence “When you have a pressing challenge, McMillan Vantage has the senior expertise with a deep understanding of what you need to know, when you need it most.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 28 contacts → | ||||
Strong 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 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 18 contacts → | ||||
Strong evidence “Bluesky Strategy Group delivers public affairs, strategic communications, government relations, and media relations advice and execution.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 16 contacts → | ||||
Partial evidence “EXPERT Government Relations.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Partial evidence “Strategy Branding & Design Campaigns & Content Media Relations Digital Advertising Crisis Communications Social Media Training & Workshops” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect 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 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 contacts → | ||||
Partial evidence “Julie & Co is a boutique event management and public affairs agency.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Indirect evidence “Blackbook Lifestyle is a creative agency based in Ottawa, founded in 2010 and built on decades of collective experience shaping brands through clarity, culture, and craft.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Partial evidence “NHM Connect is here to support you in building, maintaining and fostering an effective government and corporate relations strategy that develops and strengthens your…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: full-service public relations 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 full-service public relations firms.
- Partial evidence
- Its own public description names part of full-service public relations firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name full-service public relations 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 12 of 25 full-service public relations firms based in Ottawa, Canada
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 166 reachable decision-makers.
Free signup · no credit card
Full-service public relations firms based in Ottawa, Canada at a glance
As of Sep 14, 2026Companies by employee count
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 25 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 full-service public relations 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 “full-service public relations 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 full-service public relations 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 full-service public relations 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, 166 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.
Full-service public relations firms by metro in Canada
- Full-service public relations firms in Toronto168
- Full-service public relations firms in Montreal61
- Full-service public relations firms in Vancouver50
- Full-service public relations firms in Ottawa25
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 full-service public relations 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 full-service public relations firms are there based in Ottawa, Canada?
RevenueBase identified 25 full-service public relations 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?
PAA Advisory Conseils, headquartered in Ottawa, tops this list with the largest team on record.
Which city has the most full-service public relations firms?
Toronto leads with 168 headquartered companies, followed by Montreal (61) and Vancouver (50).
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 166 verified decision-maker contacts tracked across these 25 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.
Ready to reach these companies? Verified emails and direct dials for all 25 full-service public relations firms based in Ottawa, Canada. Start with a free account, no credit card.
Download this list →Related lists
Full-service public relations firms by geography
- Full-service public relations firms based in Brisbane, Australia
- Full-service public relations firms based in Melbourne, Australia
- Full-service public relations firms based in Sydney, Australia
- Full-service public relations firms based in Montreal, Canada
- Full-service public relations firms based in Toronto, Canada
- Full-service public relations firms based in Vancouver, Canada
- Full-service public relations firms based in Berlin, Germany
- Full-service public relations firms based in Hamburg, Germany
- Full-service public relations firms based in Bangalore, India
- Full-service public relations firms based in Mumbai, India
- Full-service public relations firms based in New Delhi, India
- Full-service public relations firms based in Noida, India
Browse the directory
Browse: Companies home · Full-service public relations firms in Canada · All Canada lists · All Full-service public relations firms lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Full-service public relations firms based in Brisbane, Australia
- Full-service public relations firms based in Melbourne, Australia
- Full-service public relations firms based in Sydney, Australia
- Full-service public relations firms based in Montreal, Canada
- Full-service public relations firms based in Toronto, Canada
- Full-service public relations firms based in Vancouver, Canada