Company lists · Data refreshed September 2026
Top 25 Email deliverability services worldwide
RevenueBase identified 571 company matches for email deliverability services worldwide as of September 2026 and tracks 3,146 professional contacts across them, including 816 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for email deliverability 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 19, 2026. Country and city lists for email deliverability 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 email deliverability services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 190 contacts → | ||||
Exact match “Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 129 contacts → | ||||
Exact match “EasyDMARC is your one-stop platform that secures your email domain infrastructure and boosts email deliverability for your peace of mind.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 105 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 104 contacts → | ||||
Exact match “Email Warm-Up & Deliverability Platform | Land in the Inbox, Not Spam Warmy is an AI-powered email deliverability platform trusted by businesses, marketers, and sales teams…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 60 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 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 19, 2026 · View company records in RevenueBase | |||||
| 7 | 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 19, 2026 · View company records in RevenueBase | |||||
| 8 | 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 19, 2026 · View company records in RevenueBase | |||||
| 9 | 39 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 37 contacts → | ||||
Exact match “Maildoso provides high-quality SMTP and Google mailboxes built for cold email deliverability.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 30 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 29 contacts → | ||||
Exact match “Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 28 contacts → | ||||
Exact match “Email Industries is a US-based email deliverability services provider that offers innovative products and services aimed at helping businesses like yours optimize their email…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match “Mailtarget is Indonesia’s Enterprise MTA & Email Infrastructure Provider, built for mission-critical communication with high deliverability, compliance control, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 25 contacts → | ||||
Exact match “GlockApps Software is a privately held company that offers multiple email marketing solutions to help businesses reach the inbox and solve email deliverability issues.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 24 contacts → | ||||
Exact match “Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 23 contacts → | ||||
Exact match “Inbox Monster helps email teams send epic messages to every inbox.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 23 contacts → | ||||
Exact match “turboSMTP is an online platform developed for the safe delivery of transactional emails and newsletters.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 21 contacts → | ||||
Exact match “Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 20 contacts → | ||||
Exact match “Email marketing is a powerful channel for small businesses to generate leads.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 19 contacts → | ||||
Exact match “Routage email Mindbaz est une application saas de routage email.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 19 contacts → | ||||
Exact match “Founded in 2003, Sendio is a venture-backed, privately held company whose products protect the email environments of enterprises and institutions from attacks and abuse, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “MailChannels ensures your customers' emails are always delivered.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 18 contacts → | ||||
Exact match “Most B2B SaaS outbound fails before a single email is sent.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 17 contacts → | ||||
Exact match “SMTP Provider Put Ltd was founded in 2012 by an Internet Marketing Company.” Recorded in the RevenueBase company graph · Sep 19, 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 “email deliverability 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 571 email deliverability services worldwide
See the full list, filter by size, metro and specialty, and access 816 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Email deliverability services worldwide at a glance
As of Sep 19, 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 email deliverability services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “email deliverability 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 816 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 19, 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.
Email deliverability services by location
3 lists · largest firstEvery Email deliverability 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 “email deliverability services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many email deliverability services are there worldwide?
RevenueBase identified 571 company matches for email deliverability 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?
Sinch Mailgun tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most email deliverability services?
The United States leads with 169 companies, followed by India (47) and the United Kingdom (41). Every email deliverability services list by country and city is linked on this page.
Which city has the most email deliverability services?
London leads with 21 company records, followed by New York (16) and San Francisco (12).
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 816 professional contacts with verified work emails tracked across these 571 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 571 email deliverability 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 email deliverability 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 571 matching company records for email deliverability services worldwide, with 3,146 tracked contacts and 816 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 19, 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 email deliverability 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 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Easydmarceasydmarc.comHQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 129 contacts → |
“EasyDMARC is your one-stop platform that secures your email domain infrastructure and boosts email deliverability for your peace of mind.” Recorded description excerpt · September 19, 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 | 105 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  WARMYmywarmer.comHQ: Tel Aviv, CA, IsraelReported employees: 51-200 | Tel Aviv, CA, Israel | 51-200 | Exact match | 104 contacts → |
“Email Warm-Up & Deliverability Platform | Land in the Inbox, Not Spam Warmy is an AI-powered email deliverability platform trusted by businesses, marketers, and sales teams…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Dolistdolist.comHQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 60 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  IPOSTipost.comHQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 39 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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 and Google mailboxes built for cold email deliverability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Mailercloudmailercloud.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Folderly INCfolderly.comHQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 29 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Email Industriesemailindustries.comHQ: Augusta, GA, IndiaReported employees: 11-50 | Augusta, GA, India | 11-50 | Exact match | 28 contacts → |
“Email Industries is a US-based email deliverability services provider that offers innovative products and services aimed at helping businesses like yours optimize their email…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Mailtargetmailtarget.coHQ: Jakarta, IndonesiaReported employees: 11-50 | Jakarta, Indonesia | 11-50 | Exact match | 25 contacts → |
“Mailtarget is Indonesia’s Enterprise MTA & Email Infrastructure Provider, built for mission-critical communication with high deliverability, compliance control, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Glockappsglockapps.comHQ: Pinedale, WY, United StatesReported employees: 11-50 | Pinedale, WY, United States | 11-50 | Exact match | 25 contacts → |
“GlockApps Software is a privately held company that offers multiple email marketing solutions to help businesses reach the inbox and solve email deliverability issues.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Smailysmaily.comHQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 24 contacts → |
“Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Inbox Monsterinboxmonster.comHQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 23 contacts → |
“Inbox Monster helps email teams send epic messages to every inbox.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Turbosmtpturbo-smtp.com HQ: Milano, ItalyReported employees: 11-50 | Milano, Italy | 11-50 | Exact match | 23 contacts → |
“turboSMTP is an online platform developed for the safe delivery of transactional emails and newsletters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Kickboxkickbox.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 21 contacts → |
“Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Xgrowth LLCxgrowthtech.comHQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 20 contacts → |
“Email marketing is a powerful channel for small businesses to generate leads.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Mindbazmindbaz.comHQ: Lille, FranceReported employees: 11-50 | Lille, France | 11-50 | Exact match | 19 contacts → |
“Routage email Mindbaz est une application saas de routage email.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Sendio Technologies, INCsendio.comHQ: Newport Beach, CA, United StatesReported employees: 11-50 | Newport Beach, CA, United States | 11-50 | Exact match | 19 contacts → |
“Founded in 2003, Sendio is a venture-backed, privately held company whose products protect the email environments of enterprises and institutions from attacks and abuse, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Mailchannelsmailchannels.comHQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 18 contacts → |
“MailChannels ensures your customers' emails are always delivered.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Emailminers Sales Automationemailminers.comHQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 18 contacts → |
“Most B2B SaaS outbound fails before a single email is sent.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Smtp Provider PVT LTDsmtpprovider.comHQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 17 contacts → |
“SMTP Provider Put Ltd was founded in 2012 by an Internet Marketing Company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 571 company matches
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Email deliverability services: dataset insights
September 19, 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
569 records in the displayed employee bands.
2 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 571 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 19, 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 ↗
Email deliverability services by location
3 lists · largest firstEvery Email deliverability 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 email deliverability 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 email deliverability services did RevenueBase find worldwide?
The saved snapshot records 571 matching company records, 3,146 tracked contacts and 816 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 19, 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 email deliverability services worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/email-deliverability-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 email deliverability services worldwide
RevenueBase records 571 matching company records for email deliverability services worldwide, with 3,146 tracked contacts and 816 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 19, 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 email deliverability 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 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Easydmarceasydmarc.com HQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 129 contacts → |
“EasyDMARC is your one-stop platform that secures your email domain infrastructure and boosts email deliverability for your peace of mind.” Recorded description excerpt · September 19, 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 | 105 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | WARMYmywarmer.com HQ: Tel Aviv, CA, IsraelReported employees: 51-200 | Tel Aviv, CA, Israel | 51-200 | Exact match | 104 contacts → |
“Email Warm-Up & Deliverability Platform | Land in the Inbox, Not Spam Warmy is an AI-powered email deliverability platform trusted by businesses, marketers, and sales teams…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Dolistdolist.com HQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 60 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | IPOSTipost.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 39 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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 and Google mailboxes built for cold email deliverability.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Mailercloudmailercloud.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Folderly INCfolderly.com HQ: Dover, DE, United StatesReported employees: 51-200 | Dover, DE, United States | 51-200 | Exact match | 29 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Email Industriesemailindustries.com HQ: Augusta, GA, IndiaReported employees: 11-50 | Augusta, GA, India | 11-50 | Exact match | 28 contacts → |
“Email Industries is a US-based email deliverability services provider that offers innovative products and services aimed at helping businesses like yours optimize their email…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Mailtargetmailtarget.co HQ: Jakarta, IndonesiaReported employees: 11-50 | Jakarta, Indonesia | 11-50 | Exact match | 25 contacts → |
“Mailtarget is Indonesia’s Enterprise MTA & Email Infrastructure Provider, built for mission-critical communication with high deliverability, compliance control, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Glockappsglockapps.com HQ: Pinedale, WY, United StatesReported employees: 11-50 | Pinedale, WY, United States | 11-50 | Exact match | 25 contacts → |
“GlockApps Software is a privately held company that offers multiple email marketing solutions to help businesses reach the inbox and solve email deliverability issues.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Smailysmaily.com HQ: Tallinn, EstoniaReported employees: 11-50 | Tallinn, Estonia | 11-50 | Exact match | 24 contacts → |
“Smaily is an intentionally simple tool made to create and send out beautiful newsletters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Inbox Monsterinboxmonster.com HQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 23 contacts → |
“Inbox Monster helps email teams send epic messages to every inbox.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Turbosmtpturbo-smtp.com HQ: Milano, ItalyReported employees: 11-50 | Milano, Italy | 11-50 | Exact match | 23 contacts → |
“turboSMTP is an online platform developed for the safe delivery of transactional emails and newsletters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Kickboxkickbox.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 21 contacts → |
“Kickbox provides technology that promotes email best practices and improves inbox placement, including a full suite of deliverability monitoring and management tools.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Xgrowth LLCxgrowthtech.com HQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 20 contacts → |
“Email marketing is a powerful channel for small businesses to generate leads.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Mindbazmindbaz.com HQ: Lille, FranceReported employees: 11-50 | Lille, France | 11-50 | Exact match | 19 contacts → |
“Routage email Mindbaz est une application saas de routage email.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sendio Technologies, INCsendio.com HQ: Newport Beach, CA, United StatesReported employees: 11-50 | Newport Beach, CA, United States | 11-50 | Exact match | 19 contacts → |
“Founded in 2003, Sendio is a venture-backed, privately held company whose products protect the email environments of enterprises and institutions from attacks and abuse, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mailchannelsmailchannels.com HQ: Vancouver, BC, CanadaReported employees: 11-50 | Vancouver, BC, Canada | 11-50 | Exact match | 18 contacts → |
“MailChannels ensures your customers' emails are always delivered.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Emailminers Sales Automationemailminers.com HQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 18 contacts → |
“Most B2B SaaS outbound fails before a single email is sent.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Smtp Provider PVT LTDsmtpprovider.com HQ: Kolkata, IndiaReported employees: 11-50 | Kolkata, India | 11-50 | Exact match | 17 contacts → |
“SMTP Provider Put Ltd was founded in 2012 by an Internet Marketing Company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 571 company matches
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Email deliverability services: dataset insights
September 19, 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
569 records in the displayed employee bands.
2 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 571 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 19, 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 ↗
Email deliverability services by location
3 lists · largest firstEvery Email deliverability 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 email deliverability 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 email deliverability services did RevenueBase find worldwide?
The saved snapshot records 571 matching company records, 3,146 tracked contacts and 816 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 19, 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 email deliverability services worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/email-deliverability-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗