Company lists · Data verified August 2026

Top 25 B2B marketing agencies based in the United States

Name: B2B 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 16,233 companies tracked

There are 16,233 B2B marketing agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 126,810 professional contacts across them, including 36,331 with verified work emails and 41,326 with mobile numbers. New York is the largest hub.

This list covers B2B 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.

16,233Companies

126,810Contacts tracked

36,331Verified emails

41,326Mobile numbers

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The 25 largest B2B marketing agencies based in the United States

Ranked by team size

Top 25 of 16,233 B2B 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	Demandscience	Boston	1,001-5,000	1,080	423
2	Logical Position	Lake Oswego, OR	501-1,000	899	674
3	Infuse	Boca Raton, FL	1,001-5,000	789	142
4	Anteriad	New York, NY	501-1,000	737	348
5	Digitas UK	New York, NY	501-1,000	728	285
6	Abstrakt Marketing Group	St Louis, MO	501-1,000	724	235
7	SCI	Miami, FL	501-1,000	693	6
8	Zimmerman Advertising	Nashville, TN	501-1,000	610	208
9	Telenet Marketing Solutions	Athens, GA	201-500	554	40
10	Martin	Richmond, VA	201-500	503	289
11	Callbox INC	Encino, CA	201-500	501	2
12	Tombras	Alexandria, VA	201-500	491	374
13	Sg360	Wheeling, IL	501-1,000	473	175
14	AMP	New York, NY	501-1,000	449	238
15	Gravity Global	Indianapolis, IN	501-1,000	418	250
16	Product Connections	Bentonville, AR	10001+	401	199
17	FUNNL	Philadelphia	201-500	351	1
18	Acceligize	Houston, TX	201-500	348	20
19	Targetbase	Raleigh, NC	201-500	317	125
20	Cramer-Krasselt	Milwaukee, WI	201-500	296	74
21	Unboundb2b	San Jose, CA	201-500	295	131
22	Transmission	Dallas, TX	201-500	290	178
23	Pep, LLC	Cincinnati, OH	201-500	282	168
24	Drive Social Media	Atlanta, GA	201-500	279	1
25	Abelsontaylor Group	Chicago, IL	201-500	267	92

Showing 25 of 16,233 B2B marketing agencies based in the United States

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B2B marketing agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 686 HQs

41,326Contacts with mobile numbers

285Emails re-verified in last 30 days

Companies by employee count

1-10

11,563

11-50

3,825

51-200

660

201-500

118

501-1,000

1,001-5,000

10001+

B2B marketing agencies by metro

Metro	Companies
B2B marketing agencies in New York	686
B2B marketing agencies in Los Angeles	428
B2B marketing agencies in Miami	348
B2B marketing agencies in Chicago	306
B2B marketing agencies in Atlanta	304
B2B marketing agencies in Houston	266
B2B marketing agencies in Austin	261

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 “B2B 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; 285 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 B2B marketing agencies are there based in the United States?

There are 16,233 B2B marketing agencies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Demandscience, headquartered in Boston, tops this list with the largest team on record.

Which city has the most B2B marketing agencies?

New York leads with 686 headquartered companies, followed by Los Angeles (428) and Miami (348).

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 36,331 verified decision-maker contacts tracked across these 16,233 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.