Company lists · Data refreshed September 2026

Top 25 Full service marketing agencies based in the United States

RevenueBase identified 66,124 company matches for full service marketing agencies associated with the United States as of September 2026 and tracks 547,644 professional contacts across them, including 157,934 with verified work emails and 184,289 with mobile numbers. New York is the largest hub.

This list covers company matches for full service marketing agencies associated with the United States, 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 3, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 3, 2026 How this list was built
66,124Companies
547,644Contacts tracked
157,934Verified emails
184,289Mobile numbers
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The 25 largest full service marketing agencies based in the United States

Ranked by team size
Top 25 of 66,124 company matches for full service marketing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSussex, WI, United States10001+9,571 contacts →

Exact match

“Quad (NYSE: QUAD) is a global marketing experience company that helps brands make direct consumer connections, from household to in-store to online.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2Exact matchDenver, CO, United States10001+7,701 contacts →

Exact match

“At Deloitte Digital, we connect brands with the right strategies and tools to create great impact.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3Exact matchNew York, United States10001+4,016 contacts →

Exact match

“Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United States10001+3,879 contacts →

Exact match

“McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United States1,001-5,0002,692 contacts →

Exact match

“Digitas is the Networked Experience Agency, built on the vision that we create magnetic experiences that earn the right for brands to exist in human networks.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United States1,001-5,0002,551 contacts →

Exact match

“You can either adapt to change, ignore it or lead it.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7Exact matchLos Angeles, CA, United States1,001-5,0002,354 contacts →

Exact match

“Horizon Media is a leader in driving business-based outcomes for marketers.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United States1,001-5,0002,293 contacts →

Exact match

“Assembly is a global omnichannel agency built for brands that want a more modern approach to building brands that perform.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United States10001+1,886 contacts →

Exact match

“Part creative agency, part consultancy and part technology company, we inspire growth for ambitious brands.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United States1,001-5,0001,799 contacts →

Exact match

“Hi there!”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United States1,001-5,0001,723 contacts →

Exact match

“We’re Critical Mass.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United States10001+1,702 contacts →

Exact match

“Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United States10001+1,595 contacts →

Exact match

“Y&R is a leading global marketing communications company, with more than 189 offices in 90+ countries.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United States1,001-5,0001,401 contacts →

Exact match

“Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United States10001+1,249 contacts →

Exact match

“TBWA is The Disruption Company®.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16Exact matchCosta Mesa, CA, United States1,001-5,0001,229 contacts →

Exact match

“CMI Media Group, a WPP company, is a full-service media agency focused solely on health, wellness, and pharmaceutical marketing.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United States10001+1,197 contacts →

Exact match

“We build enduring brands that move people and markets through the radical creativity of Truth Well Told™.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United States1,001-5,0001,180 contacts →

Exact match

“Part of Omnicom Health, FCB Health New York is a full-service agency with more than 40 years of experience marketing to healthcare professionals, patients and consumers.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United States1,001-5,0001,149 contacts →

Exact match

“Founded in 1895, Hakuhodo Inc.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United States1,001-5,0001,033 contacts →

Exact match

“Brainlabs is an independent, AI-native media agency built to grow client revenue and prove the impact of every dollar spent on media.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21Exact matchYork, United States1,001-5,000954 contacts →

Exact match

“AREA 23, part of Omnicom Health, is a full-service agency focused on pushing creativity and invention in healthcare marketing to new heights.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
22Exact matchRogers, MN, United States1,001-5,000933 contacts →

Exact match

“Archway is the preferred partner in marketing execution for well-known brands.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
23Exact matchDenver, CO, United States1,001-5,000897 contacts →

Exact match

“1300+ People.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United States1,001-5,000814 contacts →

Exact match

“Ruder Finn is one of the world’s largest independent global communications and creative agencies.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
25Exact matchMinneapolis, MN, United States1,001-5,000788 contacts →

Exact match

“Formerly Essence, we are now EssenceMediacom.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase

Showing 25 of 66,124 full service marketing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 157,934 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Full service marketing agencies based in the United States at a glance

As of Sep 3, 2026
28.8%Verified-email coverage
33.7%Mobile-number coverage
8.3Average contacts per company
1-10Median size (employees)
5.8%Largest-city concentration · New York
Sep 3, 2026Page data refreshed

Companies by employee count

1-10
49,131
11-50
14,185
51-200
2,122
201-500
398
501-1,000
90
1,001-5,000
64
10001+
40

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 the United States whose business descriptions match “full service marketing agencies” 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 157,934 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 3, 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 “full service marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many full service marketing agencies are there based in the United States?

RevenueBase identified 66,124 company matches for full service marketing agencies associated with the United States 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?

QUAD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most full service marketing agencies?

New York leads with 3859 company records, followed by Los Angeles (2691) and Miami (1522).

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 157,934 professional contacts with verified work emails tracked across these 66,124 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 3, 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.