Company lists · Data verified August 2026

Top 25 Email marketing platforms based in the United States

Name: Email marketing platforms 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 901 companies tracked

There are 901 email marketing platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 15,648 professional contacts across them, including 5,084 with verified work emails and 4,489 with mobile numbers. New York is the largest hub.

This list covers email marketing platforms 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.

901Companies

15,648Contacts tracked

5,084Verified emails

4,489Mobile numbers

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The 25 largest email marketing platforms based in the United States

Ranked by team size

Top 25 of 901 email marketing platforms 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	Intuit Mailchimp	Oakland, CA	1,001-5,000	1,557	474
2	Activecampaign	Chicago, IL	1,001-5,000	852	581
3	Marigold	Nashville, TN	201-500	818	147
4	Adobe Marketo	Atlanta, GA	1,001-5,000	570	109
5	Acoustic	Waltham, MA	501-1,000	532	360
6	Dotdigital	New York, NY	201-500	488	347
7	customer.io	Portland, OR	201-500	445	231
8	Hightouch	San Francisco, CA	201-500	354	68
9	Listrak	Lititz, PA	201-500	298	173
10	LOB	San Francisco, CA	201-500	230	61
11	Sendpulse	New York	51-200	181	74
12	Stirista	San Antonio, TX	51-200	163	113
13	Feathr	Gainesville, FL	51-200	144	24
14	Icontact	Morrisville, NC	51-200	136	40
15	CLICK	Atlanta, GA	201-500	134	63
16	Benchmark Email	St Louis, MO	51-200	116	47
17	Postpilot	New York, NY	51-200	113	87
18	Smartmessage	Milton, DE	51-200	111	50
19	Trum PIA	La Palma, CA	51-200	110	10
20	Zerobounce	Santa Barbara, CA	51-200	106	59
21	Genesis Digital, LLC	Las Vegas, NV	51-200	104	57
22	Aweber	Doylestown, PA	51-200	93	26
23	Flodesk	San Francisco, CA	51-200	76	63
24	Litmus	San Mateo, CA	51-200	71	17
25	Constant Contact Lead GEN & CRM	Gainesville, FL	1,001-5,000	71	11

Showing 25 of 901 email marketing platforms based in the United States

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Email marketing platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 72 HQs

4,489Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

484

11-50

291

51-200

201-500

501-1,000

1,001-5,000

10001+

Email marketing platforms by metro

Metro	Companies
Email marketing platforms in New York	72
Email marketing platforms in San Francisco	32
Email marketing platforms in Miami	26
Email marketing platforms in Austin	23
Email marketing platforms in Los Angeles	22
Email marketing platforms in Atlanta	21
Email marketing platforms in Chicago	21
Email marketing platforms in San Diego	18

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 “email marketing platforms”, 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; 11 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 email marketing platforms are there based in the United States?

There are 901 email marketing platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Intuit Mailchimp, headquartered in Oakland, tops this list with the largest team on record.

Which city has the most email marketing platforms?

New York leads with 72 headquartered companies, followed by San Francisco (32) and Miami (26).

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 5,084 verified decision-maker contacts tracked across these 901 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.