Company lists · Data refreshed September 2026

Top 25 Email management platforms worldwide

RevenueBase identified 4,336 email management platforms worldwide as of September 2026 and tracks 54,159 professional contacts across them, including 14,954 with verified work emails. The United States is the largest market and London the largest hub.

This list covers email management platforms worldwide, 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 28, 2026. Country and city lists for email management platforms follow the table.

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 28, 2026 86% judged on-target in blind review
4,336Companies
54,159Contacts tracked
14,954Verified emails
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The 25 largest email management platforms worldwide

Ranked by team size
Top 25 of 4,336 email management platforms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to email management 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 evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,0002,789 contacts →

Indirect evidence

“Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceLehi, UT, United StatesHQ checked Sep 28, 20261,001-5,0001,434 contacts →

Indirect evidence

“A few years back, Eric (Co-Founder and CEO) got a frustrated call from his dad.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceMumbai, IndiaHQ checked Sep 28, 20261,001-5,0001,265 contacts →

Indirect evidence

“Netcore offers a Comprehensive Customer Engagement & Experience Suite that empowers marketers to create personalised customer experiences.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261,001-5,0001,036 contacts →

Partial evidence

“Insider-one platform for individualized, cross-channel experiences-enables enterprise marketers to connect customer data across channels and systems, predict their future behavior…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000908 contacts →

Partial evidence

“MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,000863 contacts →

Partial evidence

“ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNashville, TN, United StatesHQ checked Sep 28, 2026201-500820 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceParis, FranceHQ checked Sep 28, 2026501-1,000781 contacts →

Partial evidence

“Brevo offers the most intuitive Customer Platform for the sustainable growth of all businesses and organizations (including nonprofits).”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000702 contacts →

Partial evidence

“CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 20261,001-5,000572 contacts →

Partial evidence

“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceConway, AR, United StatesHQ checked Sep 28, 2026501-1,000539 contacts →

Indirect evidence

“Acoustic, L.P.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceLondon Bridge, United KingdomHQ checked Sep 28, 2026201-500491 contacts →

Partial evidence

“Dotdigital is a human-first marketing platform that helps you connect with your customers on the channels they know and love.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidencePortland, OR, United StatesHQ checked Sep 28, 2026201-500446 contacts →

Partial evidence

“Create personalized customer journeys that engage and convert with our versatile customer engagement platform.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500373 contacts →

Partial evidence

“Mapp helps marketers build personalized customer experiences through our SaaS platform, Mapp Marketing Cloud.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceHyderabad, IndiaHQ checked Sep 28, 2026501-1,000354 contacts →

Indirect evidence

“Aptroid Consulting (India) PVT.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceLititz, PA, United StatesHQ checked Sep 28, 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 28, 2026
17Indirect evidenceGlobal, United KingdomHQ checked Sep 28, 2026201-500275 contacts →

Indirect evidence

“Let’s be real.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026201-500232 contacts →

Indirect evidence

“Lob automates and personalizes direct mail at any scale, bringing the speed and features you expect from your digital channels to direct mail for the first time.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceSheridan, WY, United StatesHQ checked Sep 28, 202651-200215 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidencePortland, OR, United StatesHQ checked Sep 28, 2026201-500210 contacts →

Partial evidence

“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200197 contacts →

Indirect evidence

“Our mission is to solve customer experience.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceNew York, United StatesHQ checked Sep 28, 202651-200180 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceMoscow, RussiaHQ checked Sep 28, 2026201-500175 contacts →

Indirect evidence

“Mindbox, облачная платформа автоматизации маркетинга.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202651-200165 contacts →

Indirect evidence

“TapClicks, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 28, 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 28, 2026

Showing 25 of 4,336 email management platforms worldwide

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Email management platforms worldwide at a glance

As of Sep 28, 2026
27.6%Verified-email coverage
12.5Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,781
11-50
1,144
51-200
286
201-500
73
501-1,000
16
1,001-5,000
19
5,001-10,000
1
10001+
2

Email recency is reported on each country list linked below.

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 management 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.
Coverage
Every country. Country and city lists for email management platforms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “email management 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 email management 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 email management platforms, and records with no verified work email.
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, 14,954 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 28, 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 management platforms by location

24 lists · largest first

Every Email management platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 management 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 email management platforms are there worldwide?

RevenueBase identified 4,336 email management platforms worldwide 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?

Klaviyo, headquartered in Boston, tops this list with the largest team on record.

Which country has the most email management platforms?

The United States leads with 1,109 companies, followed by the United Kingdom (289) and India (250). Every email management platforms list by country and city is linked on this page.

Which city has the most email management platforms?

London leads with 129 headquartered companies, followed by New York (84) and San Francisco (60).

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 14,954 verified decision-maker contacts tracked across these 4,336 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 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 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.