Company lists · Data refreshed September 2026
Top 25 Big agencies based in Denver, United States
RevenueBase identified 59 big agencies headquartered in Denver, United States as of September 2026 and tracks 777 professional contacts across them, including 256 with verified work emails. New York is the largest hub.
This list covers big 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 21, 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 25 largest big agencies based in Denver, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 269 contacts → | ||||
Indirect evidence “Cactus was founded in 1990 on the belief that creativity and innovation can solve the biggest, most complex brand challenges.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 49 contacts → | ||||
Indirect evidence “Strada is a full-service agency specializing in the art and science of brand building.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 37 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 20 contacts → | ||||
Indirect evidence “Watermark is a tight-knit group of very talented, technically savvy and extremely creative professionals.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 contacts → | ||||
Indirect evidence “Ogilvy has been producing iconic, culture-changing marketing campaigns since the day its founder, David Ogilvy, opened up shop in 1948.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 16 contacts → | ||||
Indirect evidence “Based in Denver, Colorado, Prim + Co is a marketing and public relations agency that allows for quick results.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Indirect evidence “Kinetic319 distinguishes itself in the advertising realm through a unique blend of creativity, strategy, and comprehensive expertise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Indirect evidence “TEEM is a full-service marketing agency built on an expert creative network and located in Denver, Colorado.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Indirect evidence “We believe in stuff.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “Feed Media operates in more than 25 regional markets from coast to coast.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Indirect evidence “Pure was created with the belief that agencies must fundamentally evolve to respond to diverse and rapidly changing media environments.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Indirect evidence “Launch was created in 2002 to offer businesses a leaner, more nimble alternative to the traditional advertising agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Indirect evidence “The forté advertising team brings over 60 years of experience delivering complete marketing and advertising solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence “North Media is a leading marketing specialist for the appliance industry with a proven track record of successful traditional and new media campaigns.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Indirect evidence “It’s simple.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “Playground is a multi-disciplinary micro-agency based in Denver.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “Mad Studio is where strategy, creativity and experience converge.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “A a Denver-based virtual agency specializing in strategy-based marketing and public relations programs in the core areas of retail and fashion, nonprofit organizations, luxury…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “At VOCO, we love that our client list comes in all shapes and sizes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Outside Voice is a multi-disciplined marketing and communications agency creating ideas worth shouting from Denver, Colorado.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “We believe in service.” Source: RevenueBase Database · checked Sep 21, 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: big 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 big agencies.
- Partial evidence
- Its own public description names part of big agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big 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 59 big agencies based in Denver, United States
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Big agencies based in Denver, United States at a glance
As of Sep 21, 2026Companies by employee count
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 59 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 big 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 “big 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 big 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 big 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, 256 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 21, 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.
Big agencies by metro in the United States
- Big agencies in New York448
- Big agencies in Los Angeles231
- Big agencies in Chicago136
- Big agencies in Miami121
- Big agencies in Dallas99
- Big agencies in Atlanta92
- Big agencies in San Francisco67
- Big agencies in Austin63
- Big agencies in Denver59
- Big agencies in Houston55
- Big agencies in Las Vegas54
- Big agencies in Washington51
- Big agencies in San Diego47
- Big agencies in Phoenix46
- Big agencies in Portland46
- Big agencies in Philadelphia44
- Big agencies in Charlotte42
- Big agencies in Nashville41
- Big agencies in Boston40
- Big agencies in Minneapolis40
- Big agencies in Tampa39
- Big agencies in Seattle38
- Big agencies in Fort Lauderdale35
- Big agencies in Orlando33
- Big agencies in San Antonio33
- Big agencies in Raleigh29
- Big agencies in Irvine28
- Big agencies in Louisville28
- Big agencies in Pittsburgh28
- Big agencies in Cleveland26
- Big agencies in New York City26
- Big agencies in Columbus25
- Big agencies in Indianapolis25
- Big agencies in Jacksonville25
- Big agencies in Scottsdale25
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 big 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 big agencies are there based in Denver, United States?
RevenueBase identified 59 big 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?
Cactus, headquartered in Denver, tops this list with the largest team on record.
Which city has the most big agencies?
New York leads with 448 headquartered companies, followed by Los Angeles (231) and Chicago (136).
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 256 verified decision-maker contacts tracked across these 59 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 21, 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.
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