Company lists · Data verified August 2026

Top 25 Direct response marketing agencies based in the United States

Name: Direct response 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 10,374 companies tracked

There are 10,374 direct response marketing agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 129,659 professional contacts across them, including 40,096 with verified work emails and 50,119 with mobile numbers. New York is the largest hub.

This list covers direct response 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. Data current as of August 28, 2026.

10,374Companies

129,659Contacts tracked

40,096Verified emails

50,119Mobile numbers

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The 25 largest direct response marketing agencies based in the United States

Ranked by team size

Top 25 of 10,374 direct response 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	Digitas North America	Boston, MA	1,001-5,000	2,692	966
2	Horizon Media	Los Angeles, CA	1,001-5,000	2,354	1,588
3	Hearts & Science	New York, NY	1,001-5,000	1,401	691
4	Valpak	St Petersburg, FL	501-1,000	1,388	393
5	Hakuhodo INC	New York, NY	1,001-5,000	1,149	280
6	GTB	Detroit, MI	1,001-5,000	1,067	174
7	Dentsu X	New York, NY	5,001-10,000	941	193
8	IWCO	Chanhassen, MN	1,001-5,000	876	248
9	Digitas UK	New York, NY	501-1,000	728	285
10	SCI	Miami, FL	501-1,000	693	6
11	TRG	Dallas, TX	501-1,000	519	113
12	Amsive	Greenville, SC	501-1,000	497	298
13	Sg360	Wheeling, IL	501-1,000	473	175
14	AMP	New York, NY	501-1,000	449	238
15	Campbell Ewald	Detroit, MI	501-1,000	363	70
16	Barkley	Kansas City, MO	501-1,000	322	77
17	Bbdo NEW York	New York, NY	501-1,000	208	74
18	Direct Marketing Solutions	Freedom, PA	501-1,000	201	81
19	Sourcelink	Itasca, IL	501-1,000	172	13
20	MADUP	Newyork	501-1,000	153	4
21	IVIE	Flower Mound, TX	501-1,000	147	11
22	HBP Inc. A Marketing.com Company	Springfield, VA	1,001-5,000	104	19
23	Ogilvy NEW York	New York, NY	1,001-5,000	72	53
24	Qology Direct	Margate, FL	501-1,000	31	1
25	Foundry9, A Liquidhub Company	Wayne	1,001-5,000	18	3

Showing 25 of 10,374 direct response marketing agencies based in the United States

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Direct response marketing agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 465 HQs

50,119Contacts with mobile numbers

69Emails re-verified in last 30 days

Companies by employee count

1-10

6,232

11-50

3,375

51-200

586

201-500

120

501-1,000

1,001-5,000

5,001-10,000

Direct response marketing agencies by metro

Metro	Companies
Direct response marketing agencies in New York	465
Direct response marketing agencies in Los Angeles	330
Direct response marketing agencies in Chicago	229
Direct response marketing agencies in Atlanta	195
Direct response marketing agencies in Dallas	170
Direct response marketing agencies in Miami	170
Direct response marketing agencies in Austin	145
Direct response marketing agencies in Houston	141

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 “direct response 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; 69 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 direct response marketing agencies are there based in the United States?

There are 10,374 direct response marketing agencies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Digitas North America, headquartered in Boston, tops this list with the largest team on record.

Which city has the most direct response marketing agencies?

New York leads with 465 headquartered companies, followed by Los Angeles (330) and Chicago (229).

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 40,096 verified decision-maker contacts tracked across these 10,374 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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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.