Company lists · Data verified August 2026

Top 25 Marketing agencies based in the United States

Name: Marketing agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 80,244 companies tracked

This directory contains 80,244 marketing agencies based in the United States, with contact details for 771,556 people and 223,782 email addresses. As of August 2026, New York is the single most-represented city among the companies listed.

Marketing agencies provide services such as strategy, branding, advertising, content, market research, and campaign management to help organizations reach and engage customers. This list covers companies that provide marketing strategy, creative, advertising, digital marketing, public relations, content, or related marketing services to clients. Ranked by team size, largest first. Data current as of August 28, 2026.

80,244Companies

771,556Contacts tracked

223,782Verified emails

255,804Mobile numbers

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The 25 largest marketing agencies based in the United States

Ranked by team size

Top 25 of 80,244 marketing agencies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Acosta	Jacksonville, FL	10001+	11,599	2,750
2	QUAD	Sussex, WI	10001+	9,571	1,478
3	Deloitte Digital	Denver, CO	10001+	7,701	2,261
4	Omnicom Media Group	New York	10001+	4,016	1,180
5	Mccann Worldgroup	New York, NY	10001+	3,879	562
6	Spark Foundry	Chicago, IL	1,001-5,000	2,882	1,440
7	Digitas North America	Boston, MA	1,001-5,000	2,692	966
8	Publicis	San Francisco, CA	1,001-5,000	2,551	106
9	Wunderman Thompson	New York, NY	10001+	1,886	388
10	Omnicom	New York, NY	10001+	1,702	274
11	Young & Rubicam	New York, NY	10001+	1,595	21
12	Tbwa Worldwide	New York, NY	10001+	1,249	73
13	CMI Media Group	Costa Mesa, CA	1,001-5,000	1,229	933
14	Mccann	New York, NY	10001+	1,197	271
15	Tinuiti	Philadelphia, PA	1,001-5,000	1,181	683
16	FCB Health NEW York	New York, NY	1,001-5,000	1,180	23
17	Hakuhodo INC	New York, NY	1,001-5,000	1,149	280
18	Brainlabs	New York, NY	1,001-5,000	1,033	486
19	XR Extreme Reach	Burbank, CA	1,001-5,000	964	443
20	Area 23	York	1,001-5,000	954	649
21	Archway Marketing Services	Rogers, MN	1,001-5,000	933	255
22	Finn Partners	Denver, CO	1,001-5,000	897	683
23	Lucas Group	Los Angeles, CA	10001+	765	19
24	Code And Theory	New York, NY	1,001-5,000	648	323
25	MDC Partners	New York	10001+	441	4

Showing 25 of 80,244 marketing agencies based in the United States

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Marketing agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 5284 HQs

255,804Contacts with mobile numbers

1858Emails re-verified in last 30 days

Companies by employee count

1-10

58,025

11-50

18,241

51-200

2,977

201-500

559

501-1,000

159

1,001-5,000

107

10001+

Marketing agencies by metro

Metro	Companies
Marketing agencies in New York	5284
Marketing agencies in Los Angeles	3650
Marketing agencies in Miami	1955
Marketing agencies in Chicago	1671
Marketing agencies in Atlanta	1545
Marketing agencies in Austin	1266
Marketing agencies in Houston	1238

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “marketing agencies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 1858 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many marketing agencies are based in the United States?

The directory lists 80,244 marketing agencies based in the United States.

Where can I find contact information for marketing agencies?

This directory includes contact details for 771,556 people and 223,782 email addresses associated with the listed marketing agencies.

Which city has the most marketing agencies?

New York is the single most-represented city among the marketing agencies on the list.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.