Company lists · Data refreshed September 2026
Top 25 Transactional email services worldwide
RevenueBase identified 345 company matches for transactional email services worldwide as of September 2026 and tracks 4,701 professional contacts across them, including 1,662 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for transactional email services 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 September 22, 2026. Country and city lists for transactional email services 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 email services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 446 contacts → | ||||
Exact match “Create personalized customer journeys that engage and convert with our versatile customer engagement platform.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 197 contacts → | ||||
Exact match “Our mission is to solve customer experience.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 190 contacts → | ||||
Exact match “Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 141 contacts → | ||||
Exact match “Kit is the email marketing platform built for creators who mean business.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 134 contacts → | ||||
Exact match “Sendinblue is now @Brevo” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 122 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 115 contacts → | ||||
Exact match “Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 94 contacts → | ||||
Exact match “Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 90 contacts → | ||||
Exact match “Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 88 contacts → | ||||
Exact match “Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 86 contacts → | ||||
Exact match “Your data holds more potential than you think.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 80 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 68 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 61 contacts → | ||||
Exact match “UniSender is a №1 email and SMS sending service in the CIS region.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 56 contacts → | ||||
Exact match “Email for developers” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 51 contacts → | ||||
Exact match “Automatically target customers based on how they interact across all channels: email, SMS, Facebook Messenger.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 47 contacts → | ||||
Exact match “All the email marketing and delivery tools you need to communicate with your customers.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 47 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 46 contacts → | ||||
Exact match “Truly unified email, SMS, reviews, and forms.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 46 contacts → | ||||
Exact match “CleverReach ist eine der führenden Lösungen für E-Mail Marketing.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 45 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 38 contacts → | ||||
Exact match “MessageFlow is a send-it-all platform that makes cross-channel communication easy and effective.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 38 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 35 contacts → | ||||
Exact match “We are a marketing technology company that provides a state-of-the-art email, SMS & web-marketing platform.” Recorded in the RevenueBase company graph · Sep 22, 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 email services”. 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 345 transactional email services worldwide
See the full list, filter by size, metro and specialty, and access 1,662 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transactional email services worldwide at a glance
As of Sep 22, 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 email services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “transactional email services” 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 1,662 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 September 22, 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 email services by location
1 lists · largest firstEvery Transactional email services 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 email services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transactional email services are there worldwide?
RevenueBase identified 345 company matches for transactional email services worldwide as of September 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?
customer.io tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most transactional email services?
The United States leads with 71 companies. Every transactional email services list by country and city is linked on this page.
Which city has the most transactional email services?
New York leads with 10 company records, followed by Austin (8) and London (5).
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 1,662 professional contacts with verified work emails tracked across these 345 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 September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 345 transactional email services worldwide. Start with a free account, no credit card.
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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 email services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 345 matching company records for transactional email services worldwide, with 4,701 tracked contacts and 1,662 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: September 22, 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 email services 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 |  customer.iocustomer.ioHQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 446 contacts → |
“Create personalized customer journeys that engage and convert with our versatile customer engagement platform.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Remarkable AIberemarkable.aiHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 197 contacts → |
“Our mission is to solve customer experience.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sinch Mailgunmailgun.comHQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 190 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  KITkit.comHQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 141 contacts → |
“Kit is the email marketing platform built for creators who mean business.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sendinblue IS NOW Brevosendinblue.comHQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 134 contacts → |
“Sendinblue is now @Brevo” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Mailerlitemailerlite.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 122 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Benchmark Emailbenchmarkemail.comHQ: St Louis, MO, United StatesReported employees: 51-200 | St Louis, MO, United States | 51-200 | Exact match | 115 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Everlyticeverlytic.comHQ: Waverley, South AfricaReported employees: 51-200 | Waverley, South Africa | 51-200 | Exact match | 94 contacts → |
“Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Inxmailinxmail.deHQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 90 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Mailmodomailmodo.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 88 contacts → |
“Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  APSISapsis.comHQ: Malmö, SwedenReported employees: 11-50 | Malmö, Sweden | 11-50 | Exact match | 86 contacts → |
“Your data holds more potential than you think.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ICOMMicommkt.comHQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 80 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  ecomail.czecomail.czHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 68 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Unisenderunisender.com HQ: Moscow, RussiaReported employees: 51-200 | Moscow, Russia | 51-200 | Exact match | 61 contacts → |
“UniSender is a №1 email and SMS sending service in the CIS region.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Resendresend.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 56 contacts → |
“Email for developers” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Carts Gurucarts.guruHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 51 contacts → |
“Automatically target customers based on how they interact across all channels: email, SMS, Facebook Messenger.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Elastic Emailelasticemail.comHQ: Szczecin, PolandReported employees: 11-50 | Szczecin, Poland | 11-50 | Exact match | 47 contacts → |
“All the email marketing and delivery tools you need to communicate with your customers.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  SMTPsmtp.comHQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 47 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sendlanesendlane.comHQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 46 contacts → |
“Truly unified email, SMS, reviews, and forms.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cleverreachcleverreach.comHQ: Rastede, GermanyReported employees: 11-50 | Rastede, Germany | 11-50 | Exact match | 46 contacts → |
“CleverReach ist eine der führenden Lösungen für E-Mail Marketing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Kasplokasplo.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 45 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Messageflowmessageflow.comHQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 38 contacts → |
“MessageFlow is a send-it-all platform that makes cross-channel communication easy and effective.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sendgridsendgrid.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 38 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Advertricssoft IT Systems Pvt. LTDadvertricssoft.comHQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 35 contacts → |
“We are a marketing technology company that provides a state-of-the-art email, SMS & web-marketing platform.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 345 company matches
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Transactional email services: dataset insights
September 22, 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
345 records in the displayed employee bands.
0 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 345 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: September 22, 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 email services by location
1 lists · largest firstEvery Transactional email services 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 email services?
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 email services did RevenueBase find worldwide?
The saved snapshot records 345 matching company records, 4,701 tracked contacts and 1,662 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: September 22, 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 email services worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/transactional-email-services.
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 email services worldwide
RevenueBase records 345 matching company records for transactional email services worldwide, with 4,701 tracked contacts and 1,662 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: September 22, 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 email services 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 | customer.iocustomer.io HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 446 contacts → |
“Create personalized customer journeys that engage and convert with our versatile customer engagement platform.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Remarkable AIberemarkable.ai HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 197 contacts → |
“Our mission is to solve customer experience.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sinch Mailgunmailgun.com HQ: San Antonio, TX, United StatesReported employees: 201-500 | San Antonio, TX, United States | 201-500 | Exact match | 190 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | KITkit.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 141 contacts → |
“Kit is the email marketing platform built for creators who mean business.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sendinblue IS NOW Brevosendinblue.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 134 contacts → |
“Sendinblue is now @Brevo” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Mailerlitemailerlite.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 122 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Benchmark Emailbenchmarkemail.com HQ: St Louis, MO, United StatesReported employees: 51-200 | St Louis, MO, United States | 51-200 | Exact match | 115 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Everlyticeverlytic.com HQ: Waverley, South AfricaReported employees: 51-200 | Waverley, South Africa | 51-200 | Exact match | 94 contacts → |
“Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Inxmailinxmail.de HQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 90 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Mailmodomailmodo.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 88 contacts → |
“Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | APSISapsis.com HQ: Malmö, SwedenReported employees: 11-50 | Malmö, Sweden | 11-50 | Exact match | 86 contacts → |
“Your data holds more potential than you think.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ICOMMicommkt.com HQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 80 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ecomail.czecomail.cz HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 68 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Unisenderunisender.com HQ: Moscow, RussiaReported employees: 51-200 | Moscow, Russia | 51-200 | Exact match | 61 contacts → |
“UniSender is a №1 email and SMS sending service in the CIS region.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Resendresend.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 56 contacts → |
“Email for developers” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Carts Gurucarts.guru HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 51 contacts → |
“Automatically target customers based on how they interact across all channels: email, SMS, Facebook Messenger.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Elastic Emailelasticemail.com HQ: Szczecin, PolandReported employees: 11-50 | Szczecin, Poland | 11-50 | Exact match | 47 contacts → |
“All the email marketing and delivery tools you need to communicate with your customers.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | SMTPsmtp.com HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 47 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sendlanesendlane.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 46 contacts → |
“Truly unified email, SMS, reviews, and forms.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cleverreachcleverreach.com HQ: Rastede, GermanyReported employees: 11-50 | Rastede, Germany | 11-50 | Exact match | 46 contacts → |
“CleverReach ist eine der führenden Lösungen für E-Mail Marketing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kasplokasplo.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 45 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Messageflowmessageflow.com HQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 38 contacts → |
“MessageFlow is a send-it-all platform that makes cross-channel communication easy and effective.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Sendgridsendgrid.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 38 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Advertricssoft IT Systems Pvt. LTDadvertricssoft.com HQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 35 contacts → |
“We are a marketing technology company that provides a state-of-the-art email, SMS & web-marketing platform.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 345 company matches
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Transactional email services: dataset insights
September 22, 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
345 records in the displayed employee bands.
0 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 345 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: September 22, 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 email services by location
1 lists · largest firstEvery Transactional email services 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 email services?
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 email services did RevenueBase find worldwide?
The saved snapshot records 345 matching company records, 4,701 tracked contacts and 1,662 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: September 22, 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 email services worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/transactional-email-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗