Company lists · Data refreshed September 2026

Top 25 Public sector marketing agencies based in Denver, United States

Name: Public sector marketing agencies based in Denver, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 54 companies tracked

RevenueBase identified 54 public sector marketing agencies headquartered in Denver, United States as of September 2026 and tracks 435 professional contacts across them, including 186 with verified work emails. Across the United States, New York is the largest hub for this category (188 companies); Denver has 54.

This list covers public sector marketing agencies 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 29, 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 29, 2026 86% judged on-target in blind review

54Companies

435Contacts tracked

186Verified emails

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The 25 largest public sector marketing agencies based in Denver, United States

Ranked by team size

Top 25 of 54 public sector marketing agencies based in Denver, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to public sector marketing agencies: 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	Heinrich	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	51-200	69 contacts →
	Indirect evidence “If there’s one thing you need to know about Heinrich, it’s that we’re born for business.” Source: RevenueBase Database · checked Sep 29, 2026
2	Communications Strategy Group CSG	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	37 contacts →
	Strong evidence “Communications Strategy Group (CSG®) is a public relations and marketing agency working at the intersection of intent and action.” Source: RevenueBase Database · checked Sep 29, 2026
3	Circuit Media	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	51-200	26 contacts →
	Indirect evidence “MASTERS OF THE MESSAGE Founded in 2002 by attorney Rebecca Askew, Circuit Media provides communications, staffing, and creative services for government.” Source: RevenueBase Database · checked Sep 29, 2026
4	S&d Marketing Advertising	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	23 contacts →
	Partial evidence “For twenty-plus years, S&D has gone beyond creative to develop Marketing that Works.” Source: RevenueBase Database · checked Sep 29, 2026
5	Watermark	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Watermark is a tight-knit group of very talented, technically savvy and extremely creative professionals.” Source: RevenueBase Database · checked Sep 29, 2026
6	Prim CO	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	16 contacts →
	Strong evidence “Based in Denver, Colorado, Prim + Co is a marketing and public relations agency that allows for quick results.” Source: RevenueBase Database · checked Sep 29, 2026
7	Sidecar Public Relations	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	15 contacts →
	Indirect evidence “SideCar PR is a nationally recognized full-service communications firm based in Denver.” Source: RevenueBase Database · checked Sep 29, 2026
8	Dovetail Solutions	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	14 contacts →
	Strong evidence “dovetail solutions is an integrated communications, public relations, public affairs, and digital marketing firm based in Denver and Sacramento.” Source: RevenueBase Database · checked Sep 29, 2026
9	Linhart Public Relations	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	14 contacts →
	Strong evidence “Linhart PR is a national public relations firm based in Denver that specializes in marketing communications, public relations, strategic counseling, media training and social…” Source: RevenueBase Database · checked Sep 29, 2026
10	Capitol Solutions	Partial evidence	Denver, United StatesHQ checked Sep 29, 2026	1-10	12 contacts →
	Partial evidence “Government/Public Affairs and Strategic Communications.” Source: RevenueBase Database · checked Sep 29, 2026
11	PAC West Strategies	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	11 contacts →
	Partial 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 29, 2026
12	Catalyst Public Affairs	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial 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 29, 2026
13	The Kenney Group	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial 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 29, 2026
14	Volume Public Relations	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	11-50	4 contacts →
	Strong evidence “Volume Public Relations is an award-winning strategic communications firm known for accelerating marketing and PR outcomes with scientific precision.” Source: RevenueBase Database · checked Sep 29, 2026
15	Webb Strategic Communications	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Thirty years in Denver, Colorado and the Rocky Mountain Region has amassed a wealth of experience and knowledge at Webb Strategic Communications.” Source: RevenueBase Database · checked Sep 29, 2026
16	BUOY	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Buoy is a strategic communications and marketing agency that helps nonprofit organizations, government agencies, and small businesses navigate growth.” Source: RevenueBase Database · checked Sep 29, 2026
17	Pushkin Public Relations	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Pushkin Public Relations is a full-service PR firm specializing in healthcare, law firm and nonprofit communications.” Source: RevenueBase Database · checked Sep 29, 2026
18	4th Dimension Agency	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “4th Dimension is a marketing agency in Denver and Dallas, providing small- and medium-sized business with strategy, communications, advertising, and digital services to grow their…” Source: RevenueBase Database · checked Sep 29, 2026
19	Clermont Eliot	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Founded by former journalists and public relations professionals, Clermont Eliot is built on the the indisputable fact that communication is a business strategy.” Source: RevenueBase Database · checked Sep 29, 2026
20	Merritt Grace	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Merritt+Grace is a full-service strategic marketing communications agency serving clients worldwide from their Denver, Colorado-based offices.” Source: RevenueBase Database · checked Sep 29, 2026
21	4 Degrees Digital	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “4 Degrees Digital was created as a full-service online communications firm, delivering results with precision messaging.” Source: RevenueBase Database · checked Sep 29, 2026
22	Civic Centered Consulting	Strong evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	2 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 29, 2026
23	Concetto Group	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Organizations today face growing pressure to communicate complex information with clarity, credibility and confidence.” Source: RevenueBase Database · checked Sep 29, 2026
24	Main Character Energy MCE Marketing	Partial evidence	Denver, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “MCE provides full service marketing and communications that help you tell your story and be your brand’s hero.” Source: RevenueBase Database · checked Sep 29, 2026
25	Hallway Communications	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Your story affects all aspects of your business.” Source: RevenueBase Database · checked Sep 29, 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: public sector marketing agencies. 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 public sector marketing agencies.
Partial evidence: Its own public description names part of public sector marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public sector marketing agencies. 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 54 public sector marketing agencies based in Denver, United States

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Public sector marketing agencies based in Denver, United States at a glance

As of Sep 29, 2026

42.8%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 54 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 sector marketing agencies, 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 sector marketing agencies”. 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 sector marketing agencies), 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 sector marketing agencies, 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, 186 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 29, 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.

Public sector marketing agencies by metro in the United States

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 sector marketing agencies, 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 sector marketing agencies are there based in Denver, United States?

RevenueBase identified 54 public sector marketing agencies 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?

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

Which city in the United States has the most public sector marketing agencies?

New York leads the United States with 188 headquartered companies, followed by Washington (178) and Los Angeles (111). Denver has 54.

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 186 verified decision-maker contacts tracked across these 54 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 29, 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.