Company lists · Data refreshed November 2026
Top 25 Transactional mail service providers worldwide
RevenueBase identified 516 company matches for transactional mail service providers worldwide as of November 2026 and tracks 3,962 professional contacts across them, including 1,089 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for transactional 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 transactional 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.
The 25 largest transactional mail service providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 188 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 | |||||
| 2 | 138 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 | |||||
| 3 | 106 contacts → | ||||
Exact match “ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 97 contacts → | ||||
Exact match “Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 85 contacts → | ||||
Exact match “Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 78 contacts → | ||||
Exact match “UniSender is a №1 email and SMS sending service in the CIS region.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 77 contacts → | ||||
Exact match “Email for developers” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 69 contacts → | ||||
Exact match “Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 59 contacts → | ||||
Exact match “Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 51 contacts → | ||||
Exact match “All the email marketing and delivery tools you need to communicate with your customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 50 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 | |||||
| 12 | 44 contacts → | ||||
Exact match “Kasplo is a cloud-based email delivery and management service designed to help businesses send transactional and marketing emails on a large scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 42 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 | |||||
| 14 | 38 contacts → | ||||
Exact match “A SendPulse é uma plataforma de marketing orientada por IA para negócios prontos para escalar, ajudando a automatizar e-mail marketing e chatbot para WhatsApp.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 37 contacts → | ||||
Exact match “The home for all things mail.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 37 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 | |||||
| 17 | 36 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 34 contacts → | ||||
Exact match “Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 32 contacts → | ||||
Exact match “Fidelizador.com es la plataforma todo en uno de Email Marketing & Automation para grandes volúmenes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 31 contacts → | ||||
Exact match “rapidmail ist die einfach gute Newsletter-Software „made in Germany” Als Teil des digitalen Ökosystems von Positive lassen sich mit Positive rapidmail mit nur wenigen Klicks…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 30 contacts → | ||||
Exact match “Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 30 contacts → | ||||
Exact match “Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 30 contacts → | ||||
Exact match “SMTP Mailer Provides best email marketing services, we are in first position in reputed email marketing company across the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 26 contacts → | ||||
Exact match “Ongage was founded in 2011 by a team of entrepreneurial professionals passionate about email marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 26 contacts → | ||||
Exact match “Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “transactional mail service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 516 transactional mail service providers worldwide
See the full list, filter by size, metro and specialty, and access 1,089 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transactional mail service providers worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 transactional mail service providers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “transactional 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 1,089 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.
Transactional mail service providers by location
2 lists · largest firstEvery Transactional 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 “transactional mail service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transactional mail service providers are there worldwide?
RevenueBase identified 516 company matches for transactional 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?
Sinch Mailgun tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most transactional mail service providers?
The United States leads with 127 companies, followed by India (48). Every transactional mail service providers list by country and city is linked on this page.
Which city has the most transactional mail service providers?
London leads with 16 company records, followed by New York (11) and Austin (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 1,089 professional contacts with verified work emails tracked across these 516 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.
More company lists
Company intelligence · public preview
Top 25 transactional mail service providers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 516 matching company records for transactional mail service providers worldwide, with 3,962 tracked contacts and 1,089 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 transactional mail service providers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Sinch Mailgunmailgun.comHQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 188 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Mailerlitemailerlite.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 138 contacts → |
“In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Zerobouncezerobounce.netHQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 106 contacts → |
“ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Inxmailinxmail.deHQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 97 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ICOMMicommkt.comHQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 85 contacts → |
“Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Unisenderunisender.comHQ: Moscow, RussiaReported employees: 51-200 | Moscow, Russia | 51-200 | Exact match | 78 contacts → |
“UniSender is a №1 email and SMS sending service in the CIS region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Resendresend.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 77 contacts → |
“Email for developers” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ecomail.czecomail.czHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 69 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Dolistdolist.comHQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 59 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Elastic Emailelasticemail.comHQ: Szczecin, BC, PolandReported employees: 11-50 | Szczecin, BC, Poland | 11-50 | Exact match | 51 contacts → |
“All the email marketing and delivery tools you need to communicate with your customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  SMTPsmtp.comHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 50 contacts → |
“SMTP is one of the early pioneers of cloud-based email services and is now part of Ziff Davis, Moz Group and Campaigner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Kasplokasplo.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 44 contacts → |
“Kasplo is a cloud-based email delivery and management service designed to help businesses send transactional and marketing emails on a large scale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  IPOSTipost.comHQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 42 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Sendpulse Brasilsendpulse.comHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 38 contacts → |
“A SendPulse é uma plataforma de marketing orientada por IA para negócios prontos para escalar, ajudando a automatizar e-mail marketing e chatbot para WhatsApp.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  mailing.commailing.comHQ: Phoenix, CA, United StatesReported employees: 51-200 | Phoenix, CA, United States | 51-200 | Exact match | 37 contacts → |
“The home for all things mail.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Maildosomaildoso.aiHQ: Granite Bay, CA, United StatesReported employees: 11-50 | Granite Bay, CA, United States | 11-50 | Exact match | 37 contacts → |
“Maildoso provides high-quality SMTP mailboxes built for cold email deliverability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sendgridsendgrid.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 36 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Mailercloudmailercloud.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  fidelizador.comfidelizador.comHQ: Santiago, ChileReported employees: 11-50 | Santiago, Chile | 11-50 | Exact match | 32 contacts → |
“Fidelizador.com es la plataforma todo en uno de Email Marketing & Automation para grandes volúmenes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Positive Rapidmailrapidmail.deHQ: Freiburg, GermanyReported employees: 11-50 | Freiburg, Germany | 11-50 | Exact match | 31 contacts → |
“rapidmail ist die einfach gute Newsletter-Software „made in Germany” Als Teil des digitalen Ökosystems von Positive lassen sich mit Positive rapidmail mit nur wenigen Klicks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Smailysmaily.comHQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 30 contacts → |
“Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Folderly INCfolderly.comHQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 30 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Smtpmailers Private Limitedsmtpmailers.comHQ: Indore, IndiaReported employees: 11-50 | Indore, India | 11-50 | Exact match | 30 contacts → |
“SMTP Mailer Provides best email marketing services, we are in first position in reputed email marketing company across the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Ongageongage.comHQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 26 contacts → |
“Ongage was founded in 2011 by a team of entrepreneurial professionals passionate about email marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Moosendmoosend.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 516 company matches
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Transactional mail service providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
513 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 516 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Transactional mail service providers by location
2 lists · largest firstEvery Transactional mail service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for transactional mail service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transactional mail service providers did RevenueBase find worldwide?
The saved snapshot records 516 matching company records, 3,962 tracked contacts and 1,089 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 transactional mail service providers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/transactional-mail-service-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 transactional mail service providers worldwide
RevenueBase records 516 matching company records for transactional mail service providers worldwide, with 3,962 tracked contacts and 1,089 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 transactional mail service providers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Sinch Mailgunmailgun.com HQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 188 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Mailerlitemailerlite.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 138 contacts → |
“In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Zerobouncezerobounce.net HQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 106 contacts → |
“ZeroBounce is an email validation, deliverability and email finding platform helping businesses reduce bounces and land their emails in the inbox.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Inxmailinxmail.de HQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 97 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ICOMMicommkt.com HQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 85 contacts → |
“Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Unisenderunisender.com HQ: Moscow, RussiaReported employees: 51-200 | Moscow, Russia | 51-200 | Exact match | 78 contacts → |
“UniSender is a №1 email and SMS sending service in the CIS region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Resendresend.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 77 contacts → |
“Email for developers” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ecomail.czecomail.cz HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 69 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Dolistdolist.com HQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 59 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Elastic Emailelasticemail.com HQ: Szczecin, BC, PolandReported employees: 11-50 | Szczecin, BC, Poland | 11-50 | Exact match | 51 contacts → |
“All the email marketing and delivery tools you need to communicate with your customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | SMTPsmtp.com HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 50 contacts → |
“SMTP is one of the early pioneers of cloud-based email services and is now part of Ziff Davis, Moz Group and Campaigner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kasplokasplo.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 44 contacts → |
“Kasplo is a cloud-based email delivery and management service designed to help businesses send transactional and marketing emails on a large scale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | IPOSTipost.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 42 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Sendpulse Brasilsendpulse.com HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 38 contacts → |
“A SendPulse é uma plataforma de marketing orientada por IA para negócios prontos para escalar, ajudando a automatizar e-mail marketing e chatbot para WhatsApp.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | mailing.commailing.com HQ: Phoenix, CA, United StatesReported employees: 51-200 | Phoenix, CA, United States | 51-200 | Exact match | 37 contacts → |
“The home for all things mail.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Maildosomaildoso.ai HQ: Granite Bay, CA, United StatesReported employees: 11-50 | Granite Bay, CA, United States | 11-50 | Exact match | 37 contacts → |
“Maildoso provides high-quality SMTP mailboxes built for cold email deliverability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sendgridsendgrid.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 36 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Mailercloudmailercloud.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | fidelizador.comfidelizador.com HQ: Santiago, ChileReported employees: 11-50 | Santiago, Chile | 11-50 | Exact match | 32 contacts → |
“Fidelizador.com es la plataforma todo en uno de Email Marketing & Automation para grandes volúmenes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Positive Rapidmailrapidmail.de HQ: Freiburg, GermanyReported employees: 11-50 | Freiburg, Germany | 11-50 | Exact match | 31 contacts → |
“rapidmail ist die einfach gute Newsletter-Software „made in Germany” Als Teil des digitalen Ökosystems von Positive lassen sich mit Positive rapidmail mit nur wenigen Klicks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Smailysmaily.com HQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 30 contacts → |
“Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Folderly INCfolderly.com HQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 30 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Smtpmailers Private Limitedsmtpmailers.com HQ: Indore, IndiaReported employees: 11-50 | Indore, India | 11-50 | Exact match | 30 contacts → |
“SMTP Mailer Provides best email marketing services, we are in first position in reputed email marketing company across the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Ongageongage.com HQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 26 contacts → |
“Ongage was founded in 2011 by a team of entrepreneurial professionals passionate about email marketing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Moosendmoosend.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 516 company matches
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Transactional mail service providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
513 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 516 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Transactional mail service providers by location
2 lists · largest firstEvery Transactional mail service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for transactional mail service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transactional mail service providers did RevenueBase find worldwide?
The saved snapshot records 516 matching company records, 3,962 tracked contacts and 1,089 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 transactional mail service providers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/transactional-mail-service-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗