Company lists · Data verified August 2026

Top 25 Engagement marketing agencies based in the United States

Name: Engagement 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 26,654 companies tracked

There are 26,654 engagement marketing agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 300,664 professional contacts across them, including 85,675 with verified work emails and 103,065 with mobile numbers. New York is the largest hub.

This list covers engagement 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.

26,654Companies

300,664Contacts tracked

85,675Verified emails

103,065Mobile numbers

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The 25 largest engagement marketing agencies based in the United States

Ranked by team size

Top 25 of 26,654 engagement 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	QUAD	Sussex, WI	10001+	9,571	1,478
2	Digitas North America	Boston, MA	1,001-5,000	2,692	966
3	2020 Companies	Southlake, TX	10001+	2,432	319
4	Razorfish	New York, NY	1,001-5,000	1,799	1,066
5	Critical Mass	Chicago, IL	1,001-5,000	1,723	965
6	George P Johnson Experience Marketing	Boston, MA	1,001-5,000	1,609	950
7	GMR Marketing	Charlotte, NC	501-1,000	1,503	360
8	Hearts & Science	New York, NY	1,001-5,000	1,401	691
9	Sparks	Cleveland, OH	501-1,000	1,186	631
10	Hakuhodo INC	New York, NY	1,001-5,000	1,149	280
11	Dialog Direct	Fort Worth, TX	10001+	1,136	43
12	Demandscience	Boston	1,001-5,000	1,080	423
13	GTB	Detroit, MI	1,001-5,000	1,067	174
14	Clearlink	Salt Lake City, UT	501-1,000	997	296
15	Czarnowski Collective	St George, UT	501-1,000	934	612
16	ITA Group, INC	West Des Moines, IA	501-1,000	863	590
17	160over90	New York, NY	501-1,000	839	627
18	Essence	Minneapolis, MN	1,001-5,000	788	139
19	ADM Group	New York	501-1,000	787	368
20	Digitas UK	New York, NY	501-1,000	728	285
21	Affinion Group	Franklin, TN	1,001-5,000	598	16
22	SPIRO	Las Vegas, NV	501-1,000	585	406
23	Adobe Marketo	Atlanta, GA	1,001-5,000	570	109
24	TRG	Dallas, TX	501-1,000	519	113
25	Amsive	Greenville, SC	501-1,000	497	298

Showing 25 of 26,654 engagement marketing agencies based in the United States

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Engagement marketing agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 1962 HQs

103,065Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

18,623

11-50

6,639

51-200

1,064

201-500

190

501-1,000

1,001-5,000

10001+

Engagement marketing agencies by metro

Metro	Companies
Engagement marketing agencies in New York	1962
Engagement marketing agencies in Los Angeles	1577
Engagement marketing agencies in Miami	702
Engagement marketing agencies in Chicago	650
Engagement marketing agencies in Atlanta	596
Engagement marketing agencies in Austin	436
Engagement marketing agencies in Dallas	425

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 “engagement 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; 0 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 engagement marketing agencies are there based in the United States?

There are 26,654 engagement marketing agencies headquartered in the United States as of August 2026 (RevenueBase).

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 engagement marketing agencies?

New York leads with 1962 headquartered companies, followed by Los Angeles (1577) and Miami (702).

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 85,675 verified decision-maker contacts tracked across these 26,654 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.