Company lists · Data refreshed September 2026

Top 25 Email outreach platforms based in the United States

RevenueBase identified 609 company matches for email outreach platforms associated with the United States as of September 2026 and tracks 6,997 professional contacts across them, including 1,563 with verified work emails. New York is the largest hub.

This list covers company matches for email outreach platforms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
609Companies
6,997Contacts tracked
1,563Verified emails
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The 25 largest email outreach platforms based in the United States

Ranked by team size
Top 25 of 609 company matches for email outreach platforms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNashville, TN, United StatesHQ recorded Sep 28, 2026201-500820 contacts →

Exact match

“Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, United StatesHQ recorded Sep 28, 202651-200218 contacts →

Exact match

“Artisan builds AI employees.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchSheridan, WY, United StatesHQ recorded Sep 28, 202651-200215 contacts →

Exact match

“All-in-one outreach platform for business growth.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchNew York, United StatesHQ recorded Sep 28, 202651-200180 contacts →

Exact match

“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchMorrisville, NC, United StatesHQ recorded Sep 28, 202651-200137 contacts →

Exact match

“We believe powerful connections propel business growth.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchNewton, MA, United StatesHQ recorded Sep 28, 202651-200127 contacts →

Exact match

“Selling.com is a pipeline generation platform that enables sales teams to execute and scale their outbound growth through accurate sales intelligence, sales outreach, and AI…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-200122 contacts →

Exact match

“In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSt. Louis, MO, United StatesHQ recorded Sep 28, 202651-200115 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSheridan, WY, United StatesHQ recorded Sep 28, 202651-200107 contacts →

Exact match

“Unlock 700M+ verified contacts and power your outreach with the ability for sending and warmup.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchSan Antonio, TX, United StatesHQ recorded Sep 28, 202651-200106 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchDoylestown, PA, United StatesHQ recorded Sep 28, 202651-20090 contacts →

Exact match

“For over 20 years, AWeber has helped entrepreneurs and small business owners connect with their prospects and customers through powerfully-simple email marketing solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202611-5088 contacts →

Exact match

“Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-20080 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchReno, NV, United StatesHQ recorded Sep 28, 202651-20074 contacts →

Exact match

“Give more power to your sales team with Conquer, the all-in-one revenue engagement platform.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchCambridge, MA, United StatesHQ recorded Sep 28, 202651-20070 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchSheridan, WY, United StatesHQ recorded Sep 28, 202611-5068 contacts →

Exact match

“Pull to unlock serious growth in your business must fuel your sales pipeline with qualified leads.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202611-5067 contacts →

Exact match

“Lavender is your AI Email Coach It combines everything you need to easily write sales emails that get replies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchSanta Monica, CA, United StatesHQ recorded Sep 28, 202611-5060 contacts →

Exact match

“Nimble is your CRM for smarter email marketing, engagement, and business growth.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchWilmington, DE, United StatesHQ recorded Sep 28, 202651-20057 contacts →

Exact match

“EngageBay offers innovative AI-powered marketing and sales tools designed for small to medium-sized businesses.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchWilmington, DE, United StatesHQ recorded Sep 28, 202651-20052 contacts →

Exact match

“Why pay for multiple-point solutions to hit your revenue goals?”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchMiddletown, DE, United StatesHQ recorded Sep 28, 202611-5049 contacts →

Exact match

“NetHunt CRM is the only tool you’ll need for outbound sales.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchGreen Cove Springs, FL, United StatesHQ recorded Sep 28, 202651-20048 contacts →

Exact match

“Sendcrux labs is building sales and marketing automation tools to help organisations to achieve the following goals cost-effectively- Boost revenues- Lead Generation- Nurture…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202611-5046 contacts →

Exact match

“AiSDR is the only AI sales agent that thinks before it sends.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchLehi, UT, United StatesHQ recorded Sep 28, 202611-5042 contacts →

Exact match

“CHIIRP is a cutting-edge marketing automation and communication platform built to help home service businesses connect with customers, close more sales, and grow revenue-without…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSan Mateo, CA, United StatesHQ recorded Sep 28, 202651-20039 contacts →

Exact match

“iPost is a leading email-sending platform purpose-built to solve real challenges in highly regulated and other data- and content-sensitive industries, including gaming, legal…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 609 email outreach platforms based in the United States

See the full list, filter by size, metro and specialty, and access 1,563 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Email outreach platforms based in the United States at a glance

As of Sep 28, 2026
22.3%Verified-email coverage
11.5Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
338
11-50
208
51-200
46
201-500
11
501-1,000
2
1,001-5,000
3
10001+
1

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 609 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “email outreach platforms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,563 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “email outreach platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many email outreach platforms are there based in the United States?

RevenueBase identified 609 company matches for email outreach platforms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Marigold tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most email outreach platforms?

New York leads with 52 company records, followed by San Francisco (36) and Sheridan (33).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,563 professional contacts with verified work emails tracked across these 609 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 SmartSearch, 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.