Company lists · Data refreshed September 2026
Top 25 Cold email infrastructure providers worldwide
RevenueBase identified 865 company matches for cold email infrastructure providers worldwide as of September 2026 and tracks 5,202 professional contacts across them, including 1,079 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for cold email infrastructure 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 September 30, 2026. Country and city lists for cold email infrastructure 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 cold email infrastructure providers 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 30, 2026 · View company records in RevenueBase | |||||
| 2 | 137 contacts → | ||||
Exact match “We believe powerful connections propel business growth.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 3 | 128 contacts → | ||||
Exact match “Prezados clientes e amigos.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 4 | 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 30, 2026 · View company records in RevenueBase | |||||
| 5 | 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 30, 2026 · View company records in RevenueBase | |||||
| 6 | 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 30, 2026 · View company records in RevenueBase | |||||
| 7 | 82 contacts → | ||||
Exact match “Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 8 | 76 contacts → | ||||
Exact match “We are a cold email infrastructure, automation, and B2B sales consultant” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 9 | 61 contacts → | ||||
Exact match “UniSender is a №1 email and SMS sending service in the CIS region.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 10 | 56 contacts → | ||||
Exact match “Email for developers” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 11 | 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 30, 2026 · View company records in RevenueBase | |||||
| 12 | 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 30, 2026 · View company records in RevenueBase | |||||
| 13 | 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 30, 2026 · View company records in RevenueBase | |||||
| 14 | 43 contacts → | ||||
Exact match “V-connect Providing Services of Dedicated Servers, Cloud Servers, Business Email Solutions, Promotional Email Solutions, Transactional, Promotional & OTP SMS Services, WhatsApp…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 15 | 42 contacts → | ||||
Exact match “next layer Telekommunikationsdienstleistungs- und Beratungs GmbH is an internet company based out of Mariahilfer Gürtel 37/7, Wien, Vienna, Austria.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 16 | 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 30, 2026 · View company records in RevenueBase | |||||
| 17 | 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 30, 2026 · View company records in RevenueBase | |||||
| 18 | 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 30, 2026 · View company records in RevenueBase | |||||
| 19 | 37 contacts → | ||||
Exact match “Maildoso provides high-quality SMTP and Google mailboxes built for cold email deliverability.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 20 | 34 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 · Sep 30, 2026 · View company records in RevenueBase | |||||
| 21 | 33 contacts → | ||||
Exact match “Hunter is an all-in-one email outreach platform to identify relevant prospects, find their email addresses, and send cold email campaigns.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 22 | 30 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 · Sep 30, 2026 · View company records in RevenueBase | |||||
| 23 | 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 30, 2026 · View company records in RevenueBase | |||||
| 24 | 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 30, 2026 · View company records in RevenueBase | |||||
| 25 | 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 30, 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 “cold email infrastructure 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 865 cold email infrastructure providers worldwide
See the full list, filter by size, metro and specialty, and access 1,079 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Cold email infrastructure providers worldwide at a glance
As of Sep 30, 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 cold email infrastructure providers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “cold email infrastructure 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 1,079 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 30, 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.
Cold email infrastructure providers by location
4 lists · largest firstEvery Cold email infrastructure providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cold email infrastructure providers based in the United States168
- Cold email infrastructure providers based in India68
- Cold email infrastructure providers based in the United Kingdom38
Cities
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 “cold email infrastructure providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cold email infrastructure providers are there worldwide?
RevenueBase identified 865 company matches for cold email infrastructure providers 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 cold email infrastructure providers?
The United States leads with 168 companies, followed by India (68) and the United Kingdom (38). Every cold email infrastructure providers list by country and city is linked on this page.
Which city has the most cold email infrastructure providers?
London leads with 27 company records, followed by New York (18) and Austin (13).
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 1,079 professional contacts with verified work emails tracked across these 865 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 30, 2026.
Ready to reach these companies? Verified emails and direct dials for all 865 cold email infrastructure providers worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 cold email infrastructure 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 865 matching company records for cold email infrastructure providers worldwide, with 5,202 tracked contacts and 1,079 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 30, 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 cold email infrastructure 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 | 190 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Icontacticontact.comHQ: Morrisville, NC, United StatesReported employees: 51-200 | Morrisville, NC, United States | 51-200 | Exact match | 137 contacts → |
“We believe powerful connections propel business growth.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Infolinkinfolink.com.brHQ: Rio De Janeiro, BrazilReported employees: Not recorded | Rio De Janeiro, Brazil | Not recorded | Exact match | 128 contacts → |
“Prezados clientes e amigos.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  woodpecker.cowoodpecker.coHQ: Wroclaw, PolandReported employees: 51-200 | Wroclaw, Poland | 51-200 | Exact match | 82 contacts → |
“Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Voltic INCvoltic.aiHQ: Lewes, DE, United KingdomReported employees: 51-200 | Lewes, DE, United Kingdom | 51-200 | Exact match | 76 contacts → |
“We are a cold email infrastructure, automation, and B2B sales consultant” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  V-Connectv-connect.inHQ: Noida, IndiaReported employees: 11-50 | Noida, India | 11-50 | Exact match | 43 contacts → |
“V-connect Providing Services of Dedicated Servers, Cloud Servers, Business Email Solutions, Promotional Email Solutions, Transactional, Promotional & OTP SMS Services, WhatsApp…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 42 contacts → |
“next layer Telekommunikationsdienstleistungs- und Beratungs GmbH is an internet company based out of Mariahilfer Gürtel 37/7, Wien, Vienna, Austria.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Positive Rapidmailrapidmail.deHQ: Freiburg, GermanyReported employees: 11-50 | Freiburg, Germany | 11-50 | Exact match | 34 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  hunter.iohunter.ioHQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 33 contacts → |
“Hunter is an all-in-one email outreach platform to identify relevant prospects, find their email addresses, and send cold email campaigns.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Moosendmoosend.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 865 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Cold email infrastructure providers: dataset insights
September 30, 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
861 records in the displayed employee bands.
4 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 865 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 30, 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 ↗
Cold email infrastructure providers by location
4 lists · largest firstEvery Cold email infrastructure providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cold email infrastructure providers based in the United States168
- Cold email infrastructure providers based in India68
- Cold email infrastructure providers based in the United Kingdom38
Cities
Questions about this company list
What does Exact match mean for cold email infrastructure 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 cold email infrastructure providers did RevenueBase find worldwide?
The saved snapshot records 865 matching company records, 5,202 tracked contacts and 1,079 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 30, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cold email infrastructure providers worldwide. Snapshot: September 30, 2026. https://revenuebase.ai/companies/browse/cold-email-infrastructure-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 cold email infrastructure providers worldwide
RevenueBase records 865 matching company records for cold email infrastructure providers worldwide, with 5,202 tracked contacts and 1,079 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 30, 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 cold email infrastructure 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 | 190 contacts → |
“Sinch Mailgun is the leading email delivery service for businesses around the world.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Icontacticontact.com HQ: Morrisville, NC, United StatesReported employees: 51-200 | Morrisville, NC, United States | 51-200 | Exact match | 137 contacts → |
“We believe powerful connections propel business growth.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Infolinkinfolink.com.br HQ: Rio De Janeiro, BrazilReported employees: Not recorded | Rio De Janeiro, Brazil | Not recorded | Exact match | 128 contacts → |
“Prezados clientes e amigos.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | woodpecker.cowoodpecker.co HQ: Wroclaw, PolandReported employees: 51-200 | Wroclaw, Poland | 51-200 | Exact match | 82 contacts → |
“Woodpecker is a cold email tool that helps B2B businesses get new customers.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Voltic INCvoltic.ai HQ: Lewes, DE, United KingdomReported employees: 51-200 | Lewes, DE, United Kingdom | 51-200 | Exact match | 76 contacts → |
“We are a cold email infrastructure, automation, and B2B sales consultant” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | V-Connectv-connect.in HQ: Noida, IndiaReported employees: 11-50 | Noida, India | 11-50 | Exact match | 43 contacts → |
“V-connect Providing Services of Dedicated Servers, Cloud Servers, Business Email Solutions, Promotional Email Solutions, Transactional, Promotional & OTP SMS Services, WhatsApp…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 42 contacts → |
“next layer Telekommunikationsdienstleistungs- und Beratungs GmbH is an internet company based out of Mariahilfer Gürtel 37/7, Wien, Vienna, Austria.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Positive Rapidmailrapidmail.de HQ: Freiburg, GermanyReported employees: 11-50 | Freiburg, Germany | 11-50 | Exact match | 34 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | hunter.iohunter.io HQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 33 contacts → |
“Hunter is an all-in-one email outreach platform to identify relevant prospects, find their email addresses, and send cold email campaigns.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Moosendmoosend.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Deliver the perfect email straight to your audience's inbox and grow a thriving customer base with Moosend.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 865 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Cold email infrastructure providers: dataset insights
September 30, 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
861 records in the displayed employee bands.
4 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 865 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 30, 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 ↗
Cold email infrastructure providers by location
4 lists · largest firstEvery Cold email infrastructure providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cold email infrastructure providers based in the United States168
- Cold email infrastructure providers based in India68
- Cold email infrastructure providers based in the United Kingdom38
Cities
Questions about this company list
What does Exact match mean for cold email infrastructure 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 cold email infrastructure providers did RevenueBase find worldwide?
The saved snapshot records 865 matching company records, 5,202 tracked contacts and 1,079 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 30, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cold email infrastructure providers worldwide. Snapshot: September 30, 2026. https://revenuebase.ai/companies/browse/cold-email-infrastructure-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗