Company lists · Data verified August 2026

Top 25 Email marketing automation companies based in the United States

Name: Email marketing automation companies 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 1,209 companies tracked

There are 1,209 email marketing automation companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 15,656 professional contacts across them, including 4,964 with verified work emails and 4,330 with mobile numbers. New York is the largest hub.

This list covers email marketing automation companies 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.

1,209Companies

15,656Contacts tracked

4,964Verified emails

4,330Mobile numbers

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The 25 largest email marketing automation companies based in the United States

Ranked by team size

Top 25 of 1,209 email marketing automation companies 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	Dotdigital	New York, NY	201-500	488	347
6	customer.io	Portland, OR	201-500	445	231
7	Listrak	Lititz, PA	201-500	298	173
8	Tangence	San Jose, CA	201-500	205	47
9	Remarkable AI	New York, NY	51-200	195	18
10	Sendpulse	New York	51-200	181	74
11	Stirista	San Antonio, TX	51-200	163	113
12	Cordial	San Diego, CA	51-200	154	74
13	Icontact	Morrisville, NC	51-200	136	40
14	CLICK	Atlanta, GA	201-500	134	63
15	Myadvice	Lehi, UT	51-200	123	59
16	Growthloop	New York City, NY	51-200	98	56
17	Aweber	Doylestown, PA	51-200	93	26
18	Flodesk	San Francisco, CA	51-200	76	63
19	Constant Contact Lead GEN & CRM	Gainesville, FL	1,001-5,000	71	11
20	Marrina Decisions	Santa Clara, CA	51-200	69	39
21	PRIVY	Boston, MA	51-200	68	41
22	Retainiq	Wilmington, DE	51-200	65	35
23	Alchemy Worx	New York, NY	51-200	63	37
24	Engagebay	Wilmington, DE	51-200	57	10
25	Maxa Designs	Los Angeles, CA	51-200	56	29

Showing 25 of 1,209 email marketing automation companies based in the United States

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Email marketing automation companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 85 HQs

4,330Contacts with mobile numbers

9Emails re-verified in last 30 days

Companies by employee count

1-10

750

11-50

330

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email marketing automation companies by metro

Metro	Companies
Email marketing automation companies in New York	85
Email marketing automation companies in San Francisco	38
Email marketing automation companies in Los Angeles	37
Email marketing automation companies in Miami	29
Email marketing automation companies in Austin	27
Email marketing automation companies in Atlanta	27
Email marketing automation companies in Chicago	27
Email marketing automation companies in Sheridan	22

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 automation companies”, 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; 9 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 automation companies are there based in the United States?

There are 1,209 email marketing automation companies 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 automation companies?

New York leads with 85 headquartered companies, followed by San Francisco (38) and Los Angeles (37).

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 4,964 verified decision-maker contacts tracked across these 1,209 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.