Company lists · Data refreshed September 2026
Top 25 Constituent relations firms based in Canada
RevenueBase identified 46 company matches for constituent relations firms associated with Canada as of September 2026 and tracks 502 professional contacts across them, including 280 with verified work emails. Toronto is the largest hub.
This list covers company matches for constituent relations firms associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 25 largest constituent relations firms based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 84 contacts → | ||||
Exact match “Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 77 contacts → | ||||
Exact match “Established in 1998, Sussex Strategy Group is Canada’s leading government relations, strategic communications, digital advocacy and business advisory agency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 36 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 25 contacts → | ||||
Exact match “Nous sommes une firme de communications stratégiques et de relations gouvernementales.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 25 contacts → | ||||
Exact match “A multi-national public affairs firm providing corporations, associations, and not-for-profit organizations with strategic advice and support in building connections to influence…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 20 contacts → | ||||
Exact match “MERCURE Conseil est une firme-conseil boutique spécialisée en affaires publiques et gouvernementales ainsi qu’en communication corporative et financière.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 19 contacts → | ||||
Exact match “Helping you shape policy, reputation and growth.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 19 contacts → | ||||
Exact match “New West Public Affairs is a national public affairs firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 19 contacts → | ||||
Exact match “Temple Scott Associates (TSA) is a leading public relations and government relations firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 19 contacts → | ||||
Exact match “Iris Communications is an integrated strategic communication, government relations and public affairs firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 16 contacts → | ||||
Exact match “EXPERT Government Relations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 12 contacts → | ||||
Exact match “Prospectus Associates is one of Canada’s leading national public affairs consulting firms that prides itself on delivering high-end personalized service by experienced…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “Founded in 1981 in Montreal, Citoyen is a Quebec-based public relations firm and an international network member with industry expertise covering all sectors and services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match “First Lake Solutions provides associations, municipalities and corporations with effective government relations and media relations support.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match “S&A doesn’t just open doors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 5 contacts → | ||||
Exact match “Policy Concepts is a boutique government relations and public affairs firm that helps businesses and organizations navigate government decision making and develop innovative…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Composé d’experts aguerris, Leliken sait vous guider dans les tempêtes les plus rudes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “We’re an independent consulting firm that provides expert, affordable public and government relations services including: Advocacy Grants and Funding Support Policy Communications…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match “At GSD Strategies, we specialize in tailored government relations solutions for Saskatchewan’s diverse landscape of businesses, organizations, and communities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 4 contacts → | ||||
Exact match “Grassroots Public Affairs excels in helping businesses and industry associations craft and execute effective communication strategies for their government and public relation…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 4 contacts → | ||||
Exact match “At Campbell Strategies, we have two types of clients: those who have issues they need resolved.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “In July 2018, Octane Joined NATIONAL Public Affairs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “We’re friends and colleagues with a long history of working together.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “WPC is one of Canada’s leading government relations consulting firms, assisting organizations in GR, Management Consulting and Communications nation-wide and internationally.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “constituent relations firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 46 constituent relations firms based in Canada
See the full list, filter by size, metro and specialty, and access 280 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Constituent relations firms based in Canada at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 46 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Canada whose business descriptions match “constituent relations firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 280 professional contacts with verified work emails across the full matched dataset. 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.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “constituent relations firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many constituent relations firms are there based in Canada?
RevenueBase identified 46 company matches for constituent relations firms associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Earnscliffe Strategies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most constituent relations firms?
Toronto leads with 12 company records, followed by Ottawa (8) and Montreal (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 280 professional contacts with verified work emails tracked across these 46 companies; direct dials are available where recorded.
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 SmartSearch, 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
Company intelligence · public preview
Top 25 constituent relations firms based in Canada
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 46 matching company records for constituent relations firms based in Canada, with 502 tracked contacts and 280 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 constituent relations firms based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Earnscliffe Strategiesearnscliffe.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 84 contacts → |
“Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Sussex Strategy Groupsussex-strategy.comHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 77 contacts → |
“Established in 1998, Sussex Strategy Group is Canada’s leading government relations, strategic communications, digital advocacy and business advisory agency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Ottawa, ON, CanadaReported employees: 11-50 | Ottawa, ON, Canada | 11-50 | Exact match | 36 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ryan Affaires Publiquesryanap.comHQ: Montréal, QC, CanadaReported employees: 11-50 | Montréal, QC, Canada | 11-50 | Exact match | 25 contacts → |
“Nous sommes une firme de communications stratégiques et de relations gouvernementales.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Pathway Grouppathwaygroup.comHQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 25 contacts → |
“A multi-national public affairs firm providing corporations, associations, and not-for-profit organizations with strategic advice and support in building connections to influence…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Mercuremercureconseil.caHQ: Montreal, QC, CanadaReported employees: 11-50 | Montreal, QC, Canada | 11-50 | Exact match | 20 contacts → |
“MERCURE Conseil est une firme-conseil boutique spécialisée en affaires publiques et gouvernementales ainsi qu’en communication corporative et financière.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Porter O'brienporterobrien.comHQ: Fredericton, NB, CanadaReported employees: 11-50 | Fredericton, NB, Canada | 11-50 | Exact match | 19 contacts → |
“Helping you shape policy, reputation and growth.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  NEW West Public Affairsnewwestpublicaffairs.caHQ: Calgary, AB, CanadaReported employees: 1-10 | Calgary, AB, Canada | 1-10 | Exact match | 19 contacts → |
“New West Public Affairs is a national public affairs firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 19 contacts → |
“Temple Scott Associates (TSA) is a leading public relations and government relations firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Iris Communicationsiriscomms.caHQ: Halifax, NS, CanadaReported employees: 11-50 | Halifax, NS, Canada | 11-50 | Exact match | 19 contacts → |
“Iris Communications is an integrated strategic communication, government relations and public affairs firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Arnason Industries LTDarnasons.caHQ: Rosser, MB, CanadaReported employees: 51-200 | Rosser, MB, Canada | 51-200 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Maple Leaf Strategiesmapleleafstrategies.comHQ: Ottawa, ON, CanadaReported employees: 11-50 | Ottawa, ON, Canada | 11-50 | Exact match | 16 contacts → |
“EXPERT Government Relations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Prospectus Associatesprospectus.associatesHQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 12 contacts → |
“Prospectus Associates is one of Canada’s leading national public affairs consulting firms that prides itself on delivering high-end personalized service by experienced…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Citoyencitizenrelations.comHQ: Montréal, QC, CanadaReported employees: 51-200 | Montréal, QC, Canada | 51-200 | Exact match | 11 contacts → |
“Founded in 1981 in Montreal, Citoyen is a Quebec-based public relations firm and an international network member with industry expertise covering all sectors and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  First Lake Solutionsthisisfirstlake.caHQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 10 contacts → |
“First Lake Solutions provides associations, municipalities and corporations with effective government relations and media relations support.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  S&a Strategiessastrategies.caHQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 6 contacts → |
“S&A doesn’t just open doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Policy Concepts INCpolicyconcepts.caHQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 5 contacts → |
“Policy Concepts is a boutique government relations and public affairs firm that helps businesses and organizations navigate government decision making and develop innovative…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Leliken Relations Conseilsleliken.comHQ: Montréal, QC, CanadaReported employees: 1-10 | Montréal, QC, Canada | 1-10 | Exact match | 5 contacts → |
“Composé d’experts aguerris, Leliken sait vous guider dans les tempêtes les plus rudes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  KIT Public Affairskitpr.caHQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 4 contacts → |
“We’re an independent consulting firm that provides expert, affordable public and government relations services including: Advocacy Grants and Funding Support Policy Communications…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | GSD Strategiesgsd-strategies.com HQ: Regina, SK, CanadaReported employees: 1-10 | Regina, SK, Canada | 1-10 | Exact match | 4 contacts → |
“At GSD Strategies, we specialize in tailored government relations solutions for Saskatchewan’s diverse landscape of businesses, organizations, and communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Grassroots Public Affairsgrassrootspublicaffairs.comHQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 4 contacts → |
“Grassroots Public Affairs excels in helping businesses and industry associations craft and execute effective communication strategies for their government and public relation…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Campbell Strategiescampbellstrategies.caHQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 4 contacts → |
“At Campbell Strategies, we have two types of clients: those who have issues they need resolved.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Octanenational.caHQ: Montréal, QC, CanadaReported employees: 11-50 | Montréal, QC, Canada | 11-50 | Exact match | 4 contacts → |
“In July 2018, Octane Joined NATIONAL Public Affairs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Symmetry Public Relationssymmetry-pr.com HQ: Saskatoon, SK, CanadaReported employees: 1-10 | Saskatoon, SK, Canada | 1-10 | Exact match | 3 contacts → |
“We’re friends and colleagues with a long history of working together.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Western Policy Consultants Inc. WPCwpcgroup.caHQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 2 contacts → |
“WPC is one of Canada’s leading government relations consulting firms, assisting organizations in GR, Management Consulting and Communications nation-wide and internationally.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 46 company matches
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Constituent relations firms: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for constituent relations firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many constituent relations firms did RevenueBase find based in Canada?
The saved snapshot records 46 matching company records, 502 tracked contacts and 280 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Constituent relations firms by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 constituent relations firms based in Canada. Snapshot: September 19, 2026. https://revenuebase.ai/companies/constituent-relations-firms/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 constituent relations firms based in Canada
RevenueBase records 46 matching company records for constituent relations firms based in Canada, with 502 tracked contacts and 280 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 constituent relations firms based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Earnscliffe Strategiesearnscliffe.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 84 contacts → |
“Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Sussex Strategy Groupsussex-strategy.com HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 77 contacts → |
“Established in 1998, Sussex Strategy Group is Canada’s leading government relations, strategic communications, digital advocacy and business advisory agency.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Ottawa, ON, CanadaReported employees: 11-50 | Ottawa, ON, Canada | 11-50 | Exact match | 36 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ryan Affaires Publiquesryanap.com HQ: Montréal, QC, CanadaReported employees: 11-50 | Montréal, QC, Canada | 11-50 | Exact match | 25 contacts → |
“Nous sommes une firme de communications stratégiques et de relations gouvernementales.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Pathway Grouppathwaygroup.com HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 25 contacts → |
“A multi-national public affairs firm providing corporations, associations, and not-for-profit organizations with strategic advice and support in building connections to influence…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Mercuremercureconseil.ca HQ: Montreal, QC, CanadaReported employees: 11-50 | Montreal, QC, Canada | 11-50 | Exact match | 20 contacts → |
“MERCURE Conseil est une firme-conseil boutique spécialisée en affaires publiques et gouvernementales ainsi qu’en communication corporative et financière.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Porter O'brienporterobrien.com HQ: Fredericton, NB, CanadaReported employees: 11-50 | Fredericton, NB, Canada | 11-50 | Exact match | 19 contacts → |
“Helping you shape policy, reputation and growth.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | NEW West Public Affairsnewwestpublicaffairs.ca HQ: Calgary, AB, CanadaReported employees: 1-10 | Calgary, AB, Canada | 1-10 | Exact match | 19 contacts → |
“New West Public Affairs is a national public affairs firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Toronto, ON, CanadaReported employees: 11-50 | Toronto, ON, Canada | 11-50 | Exact match | 19 contacts → |
“Temple Scott Associates (TSA) is a leading public relations and government relations firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Iris Communicationsiriscomms.ca HQ: Halifax, NS, CanadaReported employees: 11-50 | Halifax, NS, Canada | 11-50 | Exact match | 19 contacts → |
“Iris Communications is an integrated strategic communication, government relations and public affairs firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Arnason Industries LTDarnasons.ca HQ: Rosser, MB, CanadaReported employees: 51-200 | Rosser, MB, Canada | 51-200 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Maple Leaf Strategiesmapleleafstrategies.com HQ: Ottawa, ON, CanadaReported employees: 11-50 | Ottawa, ON, Canada | 11-50 | Exact match | 16 contacts → |
“EXPERT Government Relations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Prospectus Associatesprospectus.associates HQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 12 contacts → |
“Prospectus Associates is one of Canada’s leading national public affairs consulting firms that prides itself on delivering high-end personalized service by experienced…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Citoyencitizenrelations.com HQ: Montréal, QC, CanadaReported employees: 51-200 | Montréal, QC, Canada | 51-200 | Exact match | 11 contacts → |
“Founded in 1981 in Montreal, Citoyen is a Quebec-based public relations firm and an international network member with industry expertise covering all sectors and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | First Lake Solutionsthisisfirstlake.ca HQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 10 contacts → |
“First Lake Solutions provides associations, municipalities and corporations with effective government relations and media relations support.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | S&a Strategiessastrategies.ca HQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 6 contacts → |
“S&A doesn’t just open doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Policy Concepts INCpolicyconcepts.ca HQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 5 contacts → |
“Policy Concepts is a boutique government relations and public affairs firm that helps businesses and organizations navigate government decision making and develop innovative…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Leliken Relations Conseilsleliken.com HQ: Montréal, QC, CanadaReported employees: 1-10 | Montréal, QC, Canada | 1-10 | Exact match | 5 contacts → |
“Composé d’experts aguerris, Leliken sait vous guider dans les tempêtes les plus rudes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | KIT Public Affairskitpr.ca HQ: Ottawa, ON, CanadaReported employees: 1-10 | Ottawa, ON, Canada | 1-10 | Exact match | 4 contacts → |
“We’re an independent consulting firm that provides expert, affordable public and government relations services including: Advocacy Grants and Funding Support Policy Communications…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | GSD Strategiesgsd-strategies.com HQ: Regina, SK, CanadaReported employees: 1-10 | Regina, SK, Canada | 1-10 | Exact match | 4 contacts → |
“At GSD Strategies, we specialize in tailored government relations solutions for Saskatchewan’s diverse landscape of businesses, organizations, and communities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Grassroots Public Affairsgrassrootspublicaffairs.com HQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 4 contacts → |
“Grassroots Public Affairs excels in helping businesses and industry associations craft and execute effective communication strategies for their government and public relation…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Campbell Strategiescampbellstrategies.ca HQ: Toronto, ON, CanadaReported employees: 1-10 | Toronto, ON, Canada | 1-10 | Exact match | 4 contacts → |
“At Campbell Strategies, we have two types of clients: those who have issues they need resolved.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Octanenational.ca HQ: Montréal, QC, CanadaReported employees: 11-50 | Montréal, QC, Canada | 11-50 | Exact match | 4 contacts → |
“In July 2018, Octane Joined NATIONAL Public Affairs.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Symmetry Public Relationssymmetry-pr.com HQ: Saskatoon, SK, CanadaReported employees: 1-10 | Saskatoon, SK, Canada | 1-10 | Exact match | 3 contacts → |
“We’re friends and colleagues with a long history of working together.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Western Policy Consultants Inc. WPCwpcgroup.ca HQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 2 contacts → |
“WPC is one of Canada’s leading government relations consulting firms, assisting organizations in GR, Management Consulting and Communications nation-wide and internationally.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 46 company matches
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Constituent relations firms: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for constituent relations firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many constituent relations firms did RevenueBase find based in Canada?
The saved snapshot records 46 matching company records, 502 tracked contacts and 280 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Constituent relations firms by geography
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Cite this list
RevenueBase Data Team. Top 25 constituent relations firms based in Canada. Snapshot: September 19, 2026. https://revenuebase.ai/companies/constituent-relations-firms/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗