Company lists · Data refreshed November 2026

Top 25 Electronic mail service providers worldwide

RevenueBase identified 617 company matches for electronic mail service providers worldwide as of November 2026 and tracks 9,366 professional contacts across them, including 743 with verified work emails. The United States is the largest market and Mumbai the largest hub.

This list covers company matches for electronic mail service providers worldwide, 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. Country and city lists for electronic mail service providers follow the table.

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
617Companies
9,366Contacts tracked
743Verified emails
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The 25 largest electronic mail service providers worldwide

Ranked by team size
Top 25 of 617 company matches for electronic mail service providers worldwide, 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 matchMelbourne, AustraliaHQ recorded Nov 6, 2026n/a296 contacts →

Exact match

“Fastmail is email, just better!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNoida, IndiaHQ recorded Nov 6, 2026201-500293 contacts →

Exact match

“27+ Years of Excellence in providing Cloud Computing Solutions in India AWS DevOps, Microsoft Workload and Resiliency Competent AWS Premier Consulting Partner Among the top 10…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchToledo, OH, United StatesHQ recorded Nov 6, 2026n/a243 contacts →

Exact match

“TOAST.net was founded as an Internet Service Provider (ISP) in 1996 and has evolved as an Internet & Managed Services provider specializing in Cloud Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchŞişli, TürkiyeHQ recorded Nov 6, 202651-200218 contacts →

Exact match

“Hayatınızı TÜRKKEP ile kolaylaştırın: Yasal Geçerli ve Güvenli TÜRKKEP Hizmetleri E-Belgenin elektronik ortamda yasal geçerli ve güvenli şekilde oluşturulması, gönderilmesi…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 2026201-500188 contacts →

Exact match

“Sinch Mailgun is the leading email delivery service for businesses around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Titan is an email suite built specifically for professionals and small businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 2026n/a128 contacts →

Exact match

“Prezados clientes e amigos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchVästerås, SwedenHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Loopia is one of Scandinavia's largest and fastest growing web hosting provider with reliable services and committed support at competitive prices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRochester, NY, United StatesHQ recorded Nov 6, 202611-5054 contacts →

Exact match

“Business Email Accounts, Calendaring, Contacts and Collaboration Services for Your Business from BlueTie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“SMTP is one of the early pioneers of cloud-based email services and is now part of Ziff Davis, Moz Group and Campaigner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGothenburg, SwedenHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“At Halon, our mission is straightforward, yet powerful and complex: empower businesses through dynamic email operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSandyford, IrelandHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Topsec is a leading provider of cloud based managed email security solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMexicoHQ recorded Nov 6, 202611-5038 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchGranite Bay, CA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Maildoso provides high-quality SMTP mailboxes built for cold email deliverability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchIndiaHQ recorded Nov 6, 202611-5036 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBucharest, RomaniaHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“At Axigen, we work with communication service providers around the world to improve their customer's loyalty, increase their brand stickiness, and guarantee data sovereignty for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCali, ColombiaHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Hosting, Dominios, Servidores y Correos Electrónicos Corporativos”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRome, ItalyHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Registered Electronic Mail.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchChandigarh, IndiaHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Bagful Solutions is a leading provider of Internet services and has been in business for ten years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMumbai, IndiaHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Tizzy® Mail users will not have to worry for issues like delayed emails or not receiving incoming emails, spam mail issue, IP blacklisting, DNS-related issues, Email spoofing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“IT Dukes specializes in delivering exceptional Email Infrastructure Setup and Technical Support Services, primarily focusing on Microsoft and Google Cloud products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“MailChannels ensures your customers' emails are always delivered.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKolkata, IndiaHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“SMTP Provider Put Ltd was founded in 2012 by an Internet Marketing Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchChristchurch, New ZealandHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Email deliverability matters.”

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

Showing 25 of 617 electronic mail service providers worldwide

See the full list, filter by size, metro and specialty, and access 743 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electronic mail service providers worldwide at a glance

As of Nov 6, 2026
7.9%Verified-email coverage
15.2Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Mumbai
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
361
11-50
160
51-200
43
201-500
20
501-1,000
2
1,001-5,000
3
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for electronic mail service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “electronic mail service 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. 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 743 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.

Electronic mail service providers by location

2 lists · largest first

Every Electronic mail service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “electronic mail service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electronic mail service providers are there worldwide?

RevenueBase identified 617 company matches for electronic mail service providers worldwide 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?

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

Which country has the most electronic mail service providers?

The United States leads with 105 companies, followed by India (64). Every electronic mail service providers list by country and city is linked on this page.

Which city has the most electronic mail service providers?

Mumbai leads with 9 company records, followed by London (8) and New Delhi (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 743 professional contacts with verified work emails tracked across these 617 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.