Company lists · Data refreshed November 2026

Top 24 Mail list providers based in the United States

RevenueBase identified 342 company matches for mail list providers associated with the United States as of November 2026 and tracks 3,450 professional contacts across them, including 683 with verified work emails. New York is the largest hub.

This list covers company matches for mail list providers 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 November 6, 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 Nov 6, 2026 How this list was built
342Companies
3,450Contacts tracked
683Verified emails
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The 24 largest mail list providers based in the United States

Ranked by team size
Top 24 of 342 company matches for mail list providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchMorrisville, NC, United StatesHQ recorded Nov 6, 202651-200147 contacts →

Exact match

“We believe powerful connections propel business growth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-200138 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“Since Exact Data has been a leader in the multi-channel direct marketing industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDoylestown, PA, United StatesHQ recorded Nov 6, 202651-20095 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCoral Springs, FL, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Site Impact is your trusted, turnkey partner that empowers agencies with one of the country's largest, data-driven, multichannel marketing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNovi, MI, United StatesHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Streamline is an Email list, list brokerage, database building, and specialized marketing services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Unlock new customers effortlessly & cost-effectively with USADATA!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 202651-20042 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchValencia, CA, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Mailers Haven began in 2004 with a goal to provide data expertise to the reseller market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPhoenix, CA, United StatesHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“The home for all things mail.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSkokie, IL, United StatesHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Hallmark Data Systems is the leading marketing services and data management provider for media owners and publishers in the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCarmel, IN, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLancaster, OH, United StatesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“NFocus Consulting, Inc is a Data Agency with over 880 million direct mailing records housed in our data base.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“Contact Marketing is a direct marketing service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPlano, TX, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Helping brands scale to $5m in email sales every year.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMiami, United StatesHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“We help you build your business and client base with highly targeted and effective campaigns with tangible results using this platform”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNew Orleans, LA, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Our newsletters engage your customers through curated content and help build relationships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBethesda, MD, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Real Magnet is a leading marketing automation platform that helps businesses attract, engage and deliver better email, marketing, social and mobile campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDanbury, CT, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Statlistics is a list management and brokerage firm specializing in business and consumer list solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWilmington, DE, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Email marketing is a powerful channel for small businesses to generate leads.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWayne, PA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“SocketLabs is an email service provider with a full suite of email delivery, management, and performance analysis tools.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSalisbury, MD, United StatesHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Data Services has been the single source provider of its Data Management Platform for over 50 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCharlotte, NV, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“SENIOROI is the driving force for your targeted marketing needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 342 mail list providers based in the United States

See the full list, filter by size, metro and specialty, and access 683 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mail list providers based in the United States at a glance

As of Nov 6, 2026
19.8%Verified-email coverage
10.1Average contacts per company
11-50Median size (employees)
6.4%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
138
11-50
131
51-200
54
201-500
13
501-1,000
2
1,001-5,000
1
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 342 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 “mail list providers” 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 683 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 November 6, 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 “mail list providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mail list providers are there based in the United States?

RevenueBase identified 342 company matches for mail list providers associated with the United States as of November 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?

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

Which city has the most mail list providers?

New York leads with 22 company records, followed by Austin (14) and San Francisco (8).

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 683 professional contacts with verified work emails tracked across these 342 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 November 6, 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.