Company lists · Data refreshed September 2026

Top 25 B2B newsletter platforms based in the United States

RevenueBase identified 281 B2B newsletter platforms headquartered in the United States as of September 2026 and tracks 2,949 professional contacts across them, including 819 with verified work emails and 728 with mobile numbers. New York is the largest hub.

This list covers B2B newsletter 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
281Companies
2,949Contacts tracked
819Verified emails
728Mobile numbers
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The 25 largest B2B newsletter platforms based in the United States

Ranked by team size
Top 25 of 281 B2B newsletter platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to B2B newsletter 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 evidenceMorrisville, NC, United States51-200136 contacts →

Indirect evidence

“We believe powerful connections propel business growth.”

Source: RevenueBase Database · checked Sep 2, 2026
2Indirect evidenceSan Francisco, CA, United States51-200118 contacts →

Indirect 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 2, 2026
3Indirect evidenceSt Louis, MO, United States51-200116 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
4Indirect evidenceSheridan, WY, United States51-20097 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 2, 2026
5Indirect evidenceDoylestown, PA, United States51-20093 contacts →

Indirect 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 2, 2026
6Indirect evidenceSan Francisco, CA, United States11-5084 contacts →

Indirect 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 2, 2026
7Indirect evidenceSan Francisco, CA, United States51-20076 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
8Indirect evidenceSan Mateo, CA, United States51-20071 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
9Partial evidenceNew York, NY, United States51-20065 contacts →

Partial evidence

“We help publishers around the world save time and increase performance with newsletter and social media automation”

Source: RevenueBase Database · checked Sep 2, 2026
10Indirect evidenceSanta Monica, CA, United States11-5058 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
11Partial evidenceMiami, FL, United States11-5049 contacts →

Partial evidence

“Letterhead is the Newsletter Execution System built for teams that want to do more with email.”

Source: RevenueBase Database · checked Sep 2, 2026
12Indirect evidenceSan Diego, CA, United States51-20046 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
13Partial evidenceSan Mateo, CA, United States51-20038 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 2, 2026
14Partial evidenceDenver, CO, United States201-50038 contacts →

Partial evidence

“SendGrid is a proven cloud-based customer communication platform that successfully delivers over 45 billion emails each month for Internet and mobile-based customers like Airbnb…”

Source: RevenueBase Database · checked Sep 2, 2026
15Partial evidenceSeattle, WA, United States51-20037 contacts →

Partial 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 2, 2026
16Partial evidenceBoise, ID, United States51-20036 contacts →

Partial 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 2, 2026
17Partial evidenceAtlanta, GA, United States1,001-5,00031 contacts →

Partial evidence

“Pardot is B2B Marketing Automation by Salesforce that allows marketing and sales teams to create, deploy, and manage online marketing campaigns that increase revenue and maximize…”

Source: RevenueBase Database · checked Sep 2, 2026
18Strong evidenceGrand Rapids, MI, United States11-5027 contacts →

Strong evidence

“Envoy is a wholesale B2B platform for your entire team.”

Source: RevenueBase Database · checked Sep 2, 2026
19Indirect evidenceCharlotte, NC, United States11-5022 contacts →

Indirect evidence

“Inbox Monster helps email teams send epic messages to every inbox.”

Source: RevenueBase Database · checked Sep 2, 2026
20Strong evidenceWashington, DC, United States51-20021 contacts →

Strong evidence

“FierceMarkets, a leader in B2B e-media, helps business marketers reach targeted decision-makers through our portfolio of email newsletters, websites, webinars, and live events…”

Source: RevenueBase Database · checked Sep 2, 2026
21Partial evidenceNew Orleans, LA, United States11-5019 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
22Indirect evidenceWilmington, DE, United States11-5019 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
23Partial evidenceBethesda, MD, United States51-20018 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 2, 2026
24Indirect evidenceLos Angeles, CA, United States51-20018 contacts →

Indirect evidence

“Modern email delivery for developer and product teams in growing digital companies.”

Source: RevenueBase Database · checked Sep 2, 2026
25Indirect evidenceWayne, PA, United States11-5017 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 2, 2026

Showing 25 of 281 B2B newsletter platforms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 819 reachable decision-makers.

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B2B newsletter platforms based in the United States at a glance

As of Sep 2, 2026
27.8%Verified-email coverage
24.7%Mobile-number coverage
10.5Average contacts per company
11-50Median size (employees)
10.3%Largest-city concentration · New York
Sep 2, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
98
51-200
31
201-500
8
501-1,000
3
1,001-5,000
3

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 B2B newsletter 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 “B2B newsletter 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 B2B newsletter 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 B2B newsletter 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, 819 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 2, 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.

B2B newsletter 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 B2B newsletter 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 B2B newsletter platforms are there based in the United States?

RevenueBase identified 281 B2B newsletter 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?

Icontact, headquartered in Morrisville, tops this list with the largest team on record.

Which city has the most B2B newsletter platforms?

New York leads with 29 headquartered companies, followed by Austin (12) and San Francisco (10).

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 819 verified decision-maker contacts tracked across these 281 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 2, 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.