Company lists · Data refreshed September 2026

Top 25 Public affairs consultancies based in Denver, United States

RevenueBase identified 41 public affairs consultancies headquartered in Denver, United States as of September 2026 and tracks 226 professional contacts across them, including 95 with verified work emails. Washington is the largest hub.

This list covers public affairs consultancies headquartered in Denver, United States, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
41Companies
226Contacts tracked
95Verified emails
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The 25 largest public affairs consultancies based in Denver, United States

Ranked by team size
Top 25 of 41 public affairs consultancies based in Denver, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to public affairs consultancies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 202611-5033 contacts →

Indirect evidence

“Since 1986, GBSM has established a track record of helping organizations achieve extraordinary things through strategic planning and powerful communications.”

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 202611-5030 contacts →

Strong evidence

“CRL Associates has been problem solving, strategizing, and organizing on behalf of our clients for more than three decades, a public affairs history unmatched in Colorado.”

Source: RevenueBase Database · checked Sep 14, 2026
3Strong evidenceDenver, United StatesHQ checked Sep 14, 20261-1012 contacts →

Strong evidence

“Government/Public Affairs and Strategic Communications.”

Source: RevenueBase Database · checked Sep 14, 2026
4Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-1011 contacts →

Strong evidence

“Pac/West Strategies is a full-service public affairs firm specializing in strategic communications, campaign management, stakeholder engagement, and government affairs.”

Source: RevenueBase Database · checked Sep 14, 2026
5Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 202611-509 contacts →

Strong evidence

“Global Consulting and Public Affairs Together our consultants have over 500 years experience.”

Source: RevenueBase Database · checked Sep 14, 2026
6Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-107 contacts →

Strong evidence

“Sewald Hanfling is Colorado based public affairs firm founded in 2012 by R.D.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-106 contacts →

Strong evidence

“Aponté & Busam is a public affairs consulting firm providing high caliber services to a variety of clients in the health care, education, nonprofit and business arenas.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“The Capstone Group is a full service state government relations and lobbying firm founded in 2003.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“At MAC Group, we are leaving behind the traditional model of political consulting.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-105 contacts →

Strong evidence

“Catalyst Public Affairs is a full-service public affairs firm specializing in strategic communications, stakeholder and community outreach and corporate social responsibility.”

Source: RevenueBase Database · checked Sep 14, 2026
11Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-105 contacts →

Strong evidence

“Summit Strategies is a national government relations and public affairs firm based in Denver, Colorado.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“3015 Policy is a woman-owned government affairs and lobbying firm in Colorado.”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“Hicks & Associates is one of Colorado’s most active business lobbying firms.”

Source: RevenueBase Database · checked Sep 14, 2026
15Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-104 contacts →

Strong evidence

“The Kenney Group is a full-service, public affairs, strategic communications and political consulting firm based in Denver, Colorado.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“NEXUS POLICY GROUP is a public relations and communications company based out of 1410 GRANT ST STE A101, DENVER, Colorado, United States.”

Source: RevenueBase Database · checked Sep 14, 2026
17Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-103 contacts →

Strong evidence

“TPC is recognized as a leading public affairs consulting firm specializing in community development projects throughout Colorado.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“We provide political, policy and strategic communications consulting where policy and issues intersect in the public square.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“All In Strategic Consulting’s mission is to help community organizations meet the needs of their populations and grow their impact by having a focused communications strategy…”

Source: RevenueBase Database · checked Sep 14, 2026
20Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-102 contacts →

Strong evidence

“At OnSight Public Affairs, we are focused on finding a route to your specific goal.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“We know we can do it differently.”

Source: RevenueBase Database · checked Sep 14, 2026
22Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-102 contacts →

Strong evidence

“Civic Centered Consulting provides public affairs and strategic communications for a variety of clients in political, non-profit, and government sectors.”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“RBI Strategies and Research is a consulting firm specializing in strategic consulting, management, advocacy, direct mail, and survey research for political organizations, non-…”

Source: RevenueBase Database · checked Sep 14, 2026
24Strong evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-101 contacts →

Strong evidence

“WestBrooke Group is a consulting firm located in Denver, Colorado, which specializes in fundraising, event planning and public affairs for corporate, non-profit and political…”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceDenver, CO, United StatesHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Constellation Strategies, LLC is dedicated to shaping outcomes through comprehensive and strategic advocacy and guiding our clients through the landscape with integrity and…”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 41 public affairs consultancies based in Denver, United States

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Public affairs consultancies based in Denver, United States at a glance

As of Sep 14, 2026
42.0%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
1412.2%Largest-city concentration · Washington
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
4

Email recency for this list is measured across the whole United States list rather than for Denver, so it is reported there. Company counts and contact totals on this page are exact for Denver, over 41 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 public affairs consultancies, 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 Denver, United States whose own description of what they do matches “public affairs consultancies”. 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 public affairs consultancies), 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 public affairs consultancies, and records with no verified work email. Companies headquartered outside Denver 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, 95 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.

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 public affairs consultancies, 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 public affairs consultancies are there based in Denver, United States?

RevenueBase identified 41 public affairs consultancies headquartered in Denver, United States 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?

GBSM, headquartered in Denver, tops this list with the largest team on record.

Which city has the most public affairs consultancies?

Washington leads with 579 headquartered companies, followed by Sacramento (92) and New York (84).

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 95 verified decision-maker contacts tracked across these 41 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.

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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.