Company lists · Data verified August 2026

Top 25 Event marketing agencies based in the United States

Name: Event 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 8,941 companies tracked

There are 8,941 event marketing agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 115,822 professional contacts across them, including 32,133 with verified work emails and 43,687 with mobile numbers. New York is the largest hub.

This list covers event 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.

8,941Companies

115,822Contacts tracked

32,133Verified emails

43,687Mobile numbers

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The 25 largest event marketing agencies based in the United States

Ranked by team size

Top 25 of 8,941 event 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	2020 Companies	Southlake, TX	10001+	2,432	319
2	George P Johnson Experience Marketing	Boston, MA	1,001-5,000	1,609	950
3	STAR	Durham, NC	n/a	1,548	65
4	GMR Marketing	Charlotte, NC	501-1,000	1,503	360
5	Winston Retail	New York, NY	1,001-5,000	1,265	133
6	Sparks	Cleveland, OH	501-1,000	1,186	631
7	Czarnowski Collective	St George, UT	501-1,000	934	612
8	ADM Group	New York	501-1,000	787	368
9	Allied Global Marketing	Fort Lauderdale, FL	201-500	739	417
10	DERSE	Northbrook, IL	501-1,000	557	288
11	Impact XM	Princeton, NJ	501-1,000	460	336
12	Wasserman Live	Harrisburg, NC	201-500	413	264
13	Opus Agency	Beaverton, OR	501-1,000	413	237
14	Shepard	Houston, TX	501-1,000	409	219
15	Jackson Dawson	Dearborn, MI	501-1,000	404	223
16	PRA Business Events	San Diego, CA	201-500	397	240
17	MC	Paramus, NJ	201-500	345	168
18	IMA	New York, NY	201-500	313	127
19	Media Star Promotions	Hunt Valley, MD	501-1,000	304	19
20	Enterprise Events Group	San Rafael, CA	201-500	285	180
21	Revolution	Sterling Heights, MI	201-500	272	151
22	KUBIK	Henderson, NV	201-500	262	149
23	Hargrove From Encore	Lanham, MD	201-500	260	108
24	NVE Experience Agency	Los Angeles, CA	201-500	218	159
25	Interactions Marketing	San Diego, CA	10001+	209	9

Showing 25 of 8,941 event marketing agencies based in the United States

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Event marketing agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 736 HQs

43,687Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

5,969

11-50

2,313

51-200

490

201-500

501-1,000

1,001-5,000

10001+

Event marketing agencies by metro

Metro	Companies
Event marketing agencies in New York	736
Event marketing agencies in Los Angeles	525
Event marketing agencies in Chicago	272
Event marketing agencies in Atlanta	243
Event marketing agencies in Miami	231
Event marketing agencies in Las Vegas	162
Event marketing agencies in San Francisco	148

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 “event 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 event marketing agencies are there based in the United States?

There are 8,941 event marketing agencies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

2020 Companies, headquartered in Southlake, tops this list with the largest team on record.

Which city has the most event marketing agencies?

New York leads with 736 headquartered companies, followed by Los Angeles (525) and Chicago (272).

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 32,133 verified decision-maker contacts tracked across these 8,941 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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Related lists

Event marketing agencies by geography

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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.