Company lists · Data refreshed September 2026

Top 25 Email marketing service providers based in the United States

Name: Email marketing service providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 1,154 companies tracked

RevenueBase identified 1,154 email marketing service providers headquartered in the United States as of September 2026 and tracks 13,483 professional contacts across them, including 3,734 with verified work emails. New York is the largest hub.

This list covers email marketing service providers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

1,154Companies

13,483Contacts tracked

3,734Verified emails

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The 25 largest email marketing service providers based in the United States

Ranked by team size

Top 25 of 1,154 email marketing service providers based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to email marketing service providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,483 contacts →
	Partial evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 14, 2026
2	Moengage	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	501-1,000	908 contacts →
	Indirect evidence “MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.” Source: RevenueBase Database · checked Sep 14, 2026
3	Marigold	Partial evidence	Nashville, TN, United StatesHQ checked Sep 14, 2026	201-500	820 contacts →
	Partial evidence “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Source: RevenueBase Database · checked Sep 14, 2026
4	Sg360	Indirect evidence	Wheeling, IL, United StatesHQ checked Sep 14, 2026	501-1,000	477 contacts →
	Indirect evidence “sg360° can help you identify and connect with your best prospects 1:1, both offline and on.” Source: RevenueBase Database · checked Sep 14, 2026
5	Listrak	Partial evidence	Lititz, PA, United StatesHQ checked Sep 14, 2026	201-500	295 contacts →
	Partial evidence “Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.” Source: RevenueBase Database · checked Sep 14, 2026
6	Aspen Marketing	Partial evidence	Irving, TX, United StatesHQ checked Sep 14, 2026	5,001-10,000	280 contacts →
	Partial evidence “Aspen Marketing Services was acquired by Epsilon, an all-encompassing global marketing innovator, in 2011.” Source: RevenueBase Database · checked Sep 14, 2026
7	Stirista	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 14, 2026	51-200	163 contacts →
	Partial evidence “Stirista is the only company that combines data, email, and digital execution to help clients acquire and retain customers by creating a data-driven, repeatable, and scalable…” Source: RevenueBase Database · checked Sep 14, 2026
8	Icontact	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 14, 2026	51-200	137 contacts →
	Indirect evidence “We believe powerful connections propel business growth.” Source: RevenueBase Database · checked Sep 14, 2026
9	CLICK	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 14, 2026	201-500	130 contacts →
	Partial evidence “Click is the only complete marketing technology solution that is natively integrated with Microsoft Dynamics CRM.” Source: RevenueBase Database · checked Sep 14, 2026
10	Mailerlite	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	51-200	122 contacts →
	Strong evidence “In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Source: RevenueBase Database · checked Sep 14, 2026
11	United Direct Solutions	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 14, 2026	201-500	118 contacts →
	Indirect evidence “United Direct Solutions provides clients with the most effective methods to connect, engage and communicate with their audiences.” Source: RevenueBase Database · checked Sep 14, 2026
12	Targetbay	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 14, 2026	51-200	118 contacts →
	Partial evidence “TargetBay is the all-in-one marketing and customer engagement suite designed for ecommerce businesses looking to accelerate growth.” Source: RevenueBase Database · checked Sep 14, 2026
13	Benchmark Email	Partial evidence	St Louis, MO, United StatesHQ checked Sep 14, 2026	51-200	115 contacts →
	Partial evidence “Benchmark helps busy marketers move faster and make a bigger impact with email.” Source: RevenueBase Database · checked Sep 14, 2026
14	Doppler	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 14, 2026	51-200	106 contacts →
	Partial evidence “Plataforma de Marketing Multicanal, simple y potenciado por IA.” Source: RevenueBase Database · checked Sep 14, 2026
15	Emblue	Indirect evidence	Carrollton, TX, United StatesHQ checked Sep 14, 2026	51-200	105 contacts →
	Indirect evidence “Our mission is to help companies communicate in a more relevant and personal way with their customers.” Source: RevenueBase Database · checked Sep 14, 2026
16	Right Pace Techmedia, LLC	Indirect evidence	Sheridan, WY, United StatesHQ checked Sep 14, 2026	51-200	96 contacts →
	Indirect evidence “We are Right Pace TechMedia, founded in 2017, headquartered in WY, USA, with 2 operational centers in Pune, India.” Source: RevenueBase Database · checked Sep 14, 2026
17	Aweber	Strong evidence	Doylestown, PA, United StatesHQ checked Sep 14, 2026	51-200	90 contacts →
	Strong evidence “For over 20 years, AWeber has helped entrepreneurs and small business owners connect with their prospects and customers through powerfully-simple email marketing solutions.” Source: RevenueBase Database · checked Sep 14, 2026
18	Mailmodo	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	11-50	88 contacts →
	Strong evidence “Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Source: RevenueBase Database · checked Sep 14, 2026
19	Exacttarget	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 14, 2026	1,001-5,000	83 contacts →
	Partial evidence “ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…” Source: RevenueBase Database · checked Sep 14, 2026
20	Flodesk	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	51-200	80 contacts →
	Indirect evidence “Flodesk makes simple, intuitive software tools to help entrepreneurs grow their businesses.” Source: RevenueBase Database · checked Sep 14, 2026
21	Phoenix Innovate	Partial evidence	Troy, MI, United StatesHQ checked Sep 14, 2026	51-200	80 contacts →
	Partial evidence “For organizations of all sizes and types, Phoenix Innovate is a marketing innovator that can be counted on to use its passion, vision and creativity to identify and solve business…” Source: RevenueBase Database · checked Sep 14, 2026
22	Site Impact	Partial evidence	Coral Springs, FL, United StatesHQ checked Sep 14, 2026	51-200	79 contacts →
	Partial evidence “Site Impact is your trusted, turnkey partner that empowers agencies with one of the country's largest, data-driven, multichannel marketing solutions.” Source: RevenueBase Database · checked Sep 14, 2026
23	Marrina Decisions	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 14, 2026	51-200	71 contacts →
	Partial evidence “WE ARE MARRINA One of the most time-consuming yet highly-valuable aspects of the marketer’s role is Email Production.” Source: RevenueBase Database · checked Sep 14, 2026
24	Litmus	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 14, 2026	51-200	70 contacts →
	Indirect evidence “At Litmus, we know the importance of continuous innovation.” Source: RevenueBase Database · checked Sep 14, 2026
25	Dope Marketing	Partial evidence	Eagan, MN, United StatesHQ checked Sep 14, 2026	11-50	70 contacts →
	Partial evidence “You don't know marketing unless you know DOPE Marketing.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: email marketing service providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names email marketing service providers.
Partial evidence: Its own public description names part of email marketing service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name email marketing service providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,154 email marketing service providers based in the United States

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Email marketing service providers based in the United States at a glance

As of Sep 14, 2026

27.7%Verified-email coverage

11.7Average contacts per company

1-10Median size (employees)

6.8%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

676

11-50

333

51-200

101

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,154 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among email marketing service providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “email marketing service providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names email marketing service providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among email marketing service providers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 3,734 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Email marketing service providers by metro

Email marketing service providers in New York79
Email marketing service providers in Chicago28
Email marketing service providers in Miami28
Email marketing service providers in Austin26
Email marketing service providers in Los Angeles26
Email marketing service providers in Atlanta25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names email marketing service providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many email marketing service providers are there based in the United States?

RevenueBase identified 1,154 email marketing service providers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

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

Which city has the most email marketing service providers?

New York leads with 79 headquartered companies, followed by Chicago (28) and Miami (28).

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 3,734 verified decision-maker contacts tracked across these 1,154 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.