Company lists · Data refreshed September 2026

Top 25 Ab testing email platforms based in the United States

RevenueBase identified 292 ab testing email platforms headquartered in the United States as of September 2026 and tracks 5,548 professional contacts across them, including 1,587 with verified work emails. New York is the largest hub.

This list covers ab testing email 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 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 27, 2026 86% judged on-target in blind review
292Companies
5,548Contacts tracked
1,587Verified emails
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The 25 largest ab testing email platforms based in the United States

Ranked by team size
Top 25 of 292 ab testing email platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to ab testing email platforms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 27, 20261,001-5,0001,483 contacts →

Indirect evidence

“The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceLititz, PA, United StatesHQ checked Sep 27, 2026201-500295 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 27, 2026
3Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 27, 202651-200163 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 27, 2026
4Indirect evidenceMorrisville, NC, United StatesHQ checked Sep 27, 202651-200137 contacts →

Indirect evidence

“We believe powerful connections propel business growth.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 202651-200122 contacts →

Partial 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 27, 2026
6Partial evidenceSt Louis, MO, United StatesHQ checked Sep 27, 202651-200115 contacts →

Partial evidence

“Benchmark helps busy marketers move faster and make a bigger impact with email.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceSan Antonio, TX, United StatesHQ checked Sep 27, 202651-200106 contacts →

Indirect evidence

“Plataforma de Marketing Multicanal, simple y potenciado por IA.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceDoylestown, PA, United StatesHQ checked Sep 27, 202651-20090 contacts →

Partial 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 27, 2026
9Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 2026201-50089 contacts →

Strong evidence

“Instapage is a complete growth marketing platform with the #1-rated builder for PPC, SEO, demand generation, A/B testing, personalization, and email automation.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 202611-5088 contacts →

Partial 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 27, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 202651-20080 contacts →

Indirect evidence

“Flodesk makes simple, intuitive software tools to help entrepreneurs grow their businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
12Strong evidenceNewark, DE, United StatesHQ checked Sep 27, 202651-20072 contacts →

Strong evidence

“Stripo is an online drag-n-drop and HTML email platform.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 27, 202651-20071 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 27, 2026
14Indirect evidenceCambridge, MA, United StatesHQ checked Sep 27, 202651-20070 contacts →

Indirect evidence

“At Litmus, we know the importance of continuous innovation.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceBoston, MA, United StatesHQ checked Sep 27, 202651-20069 contacts →

Partial evidence

“Email & SMS for online brands that need the tools & coaching to grow sales.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 202651-20046 contacts →

Partial evidence

“Truly unified email, SMS, reviews, and forms.”

Source: RevenueBase Database · checked Sep 27, 2026
17Strong evidenceSeattle, NC, United StatesHQ checked Sep 27, 202651-20037 contacts →

Strong evidence

“WhatCounts is an email marketing and personalization platform empowering marketers to elevate customer targeting and daily email strategy and execution.”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceArlington, MA, United StatesHQ checked Sep 27, 202611-5036 contacts →

Strong evidence

“Maestra is an all-in-one marketing platform for DTC brands that helps personalize beyond email & SMS to drive +15% conversions.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceBoise, ID, United StatesHQ checked Sep 27, 202651-20036 contacts →

Strong evidence

“Kit (formerly ConvertKit) helps serious creators like yourself craft epic emails, create powerful automations, and manage their audience all in a simple, intuitive platform.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceCentennial, CO, United StatesHQ checked Sep 27, 202611-5036 contacts →

Partial evidence

“Put your best email forward with Email on Acid!”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceWilmington, DE, United StatesHQ checked Sep 27, 202611-5035 contacts →

Indirect evidence

“Claspo helps eCommerce businesses turn website traffic into high-intent subscribers and revenue.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5029 contacts →

Strong evidence

“Shoplift is the first A/B testing platform purpose-built for Shopify stores.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 27, 202611-5026 contacts →

Partial evidence

“Empower your team to create, innovate, and grow with the Dyspatch Email Builder.”

Source: RevenueBase Database · checked Sep 27, 2026
24Strong evidenceCarmel, IN, United StatesHQ checked Sep 27, 202611-5025 contacts →

Strong evidence

“Delivra, a Redbrick company, is a sophisticated email platform that designs custom solutions to help marketers and agencies automate highly personalized, event-driven campaigns…”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidencePinedale, WY, United StatesHQ checked Sep 27, 202611-5025 contacts →

Partial evidence

“GlockApps Software is a privately held company that offers multiple email marketing solutions to help businesses reach the inbox and solve email deliverability issues.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 292 ab testing email platforms based in the United States

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Ab testing email platforms based in the United States at a glance

As of Sep 27, 2026
28.6%Verified-email coverage
19.0Average contacts per company
11-50Median size (employees)
8.9%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
138
11-50
102
51-200
34
201-500
12
501-1,000
1
1,001-5,000
4

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 292 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 ab testing email platforms, 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 “ab testing email platforms”. 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 ab testing email platforms), 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 ab testing email platforms, 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, 1,587 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 27, 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.

Ab testing email platforms by metro

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 ab testing email platforms, 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 ab testing email platforms are there based in the United States?

RevenueBase identified 292 ab testing email platforms 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 ab testing email platforms?

New York leads with 26 headquartered companies, followed by San Francisco (12) and Austin (11).

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 1,587 verified decision-maker contacts tracked across these 292 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 27, 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.