Company lists · Data refreshed September 2026

Top 25 Account marketing agencies based in the United States

RevenueBase identified 72,063 account marketing agencies headquartered in the United States as of September 2026 and tracks 646,542 professional contacts across them, including 184,439 with verified work emails and 215,898 with mobile numbers. New York is the largest hub.

This list covers account marketing agencies headquartered in the 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 22, 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 22, 2026 86% judged on-target in blind review
72,063Companies
646,542Contacts tracked
184,439Verified emails
215,898Mobile numbers
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The 25 largest account marketing agencies based in the United States

Ranked by team size
Top 25 of 72,063 account marketing agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to account 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSussex, WI, United StatesHQ checked Sep 22, 202610001+9,567 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+4,963 contacts →

Partial evidence

“IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceNew York, United StatesHQ checked Sep 22, 202610001+3,989 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+3,874 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceNY, United StatesHQ checked Sep 22, 20261,001-5,0002,822 contacts →

Indirect evidence

“As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0002,368 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0002,313 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0002,189 contacts →

Indirect evidence

“R/GA is an independent creative innovation company for the intelligence age.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+1,870 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0001,763 contacts →

Indirect evidence

“Hi there!”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+1,727 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidencePortland, OR, United StatesHQ checked Sep 22, 20261,001-5,0001,711 contacts →

Indirect evidence

“Wieden+Kennedy is an independent, global creative company that has built and transformed some of the world’s most well-known, exciting brands for over forty years.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 20261,001-5,0001,688 contacts →

Partial evidence

“tms unites technology and marketing and sourcing to drive transformational change for the world’s leading brands.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+1,602 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0001,502 contacts →

Indirect evidence

“For over 20 years MKTG S+E has led some of the most transformative sponsorships in sports & entertainment.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0001,359 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidencePalo Alto, CA, United StatesHQ checked Sep 22, 20261,001-5,0001,343 contacts →

Partial evidence

“Birdeye is the #1 Agentic Marketing Platform for Multi-location Brands, purpose-built for multi-location brands.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+1,252 contacts →

Indirect evidence

“TBWA is The Disruption Company®.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202610001+1,207 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceDetroit, MI, United StatesHQ checked Sep 22, 20261,001-5,0001,064 contacts →

Partial evidence

“GTB is a global performance marketing agency, creating ideas that inspire people to act.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,0001,010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceNew York, United StatesHQ checked Sep 22, 20261,001-5,000958 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceMaple Grove, MN, United StatesHQ checked Sep 22, 20261,001-5,000929 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 22, 20261,001-5,000866 contacts →

Indirect evidence

“Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 20261,001-5,000849 contacts →

Indirect evidence

“We’re WongDoody, the creative technology agency.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 72,063 account marketing agencies based in the United States

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Account marketing agencies based in the United States at a glance

As of Sep 22, 2026
28.5%Verified-email coverage
33.4%Mobile-number coverage
9.0Average contacts per company
1-10Median size (employees)
6.0%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
52,554
11-50
16,157
51-200
2,561
201-500
471
501-1,000
125
1,001-5,000
89
10001+
46

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 24.0d

Company record updated

Median 85.0d

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 account 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 the United States whose own description of what they do matches “account 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 account 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 account marketing agencies, and records with no verified work email. Companies headquartered outside United States 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, 184,439 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 22, 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 account 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 account marketing agencies are there based in the United States?

RevenueBase identified 72,063 account marketing agencies headquartered in the 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?

QUAD, headquartered in Sussex, tops this list with the largest team on record.

Which city has the most account marketing agencies?

New York leads with 4290 headquartered companies, followed by Los Angeles (2949) and Miami (1698).

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 184,439 verified decision-maker contacts tracked across these 72,063 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 22, 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.