Company lists · Data refreshed November 2026
Top 25 Open source email marketing software companies worldwide
RevenueBase identified 979 company matches for open source email marketing software companies worldwide as of November 2026 and tracks 8,454 professional contacts across them, including 2,476 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for open source email marketing software companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for open source email marketing software companies 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 open source email marketing software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 889 contacts → | ||||
Exact match “Brevo offers the most intuitive Customer Platform for the sustainable growth of all businesses and organizations (including nonprofits).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 298 contacts → | ||||
Exact match “Let’s be real.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 147 contacts → | ||||
Exact match “We believe powerful connections propel business growth.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 138 contacts → | ||||
Exact match “In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 127 contacts → | ||||
Exact match “Sendinblue is now @Brevo” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 121 contacts → | ||||
Exact match “Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 111 contacts → | ||||
Exact match “At EmailClub, we are building the strongest CRM team on the market.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 97 contacts → | ||||
Exact match “Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 95 contacts → | ||||
Exact match “For over 20 years, AWeber has helped entrepreneurs and small business owners connect with their prospects and customers through powerfully-simple email marketing solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 90 contacts → | ||||
Exact match “We are Spotler!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 85 contacts → | ||||
Exact match “Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 84 contacts → | ||||
Exact match “Flodesk makes simple, intuitive software tools to help entrepreneurs grow their businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 83 contacts → | ||||
Exact match “Your data holds more potential than you think.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 77 contacts → | ||||
Exact match “Email for developers” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 73 contacts → | ||||
Exact match “Email & SMS for online brands that need the tools & coaching to grow sales.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 71 contacts → | ||||
Exact match “Responsys was purchased by Oracle in 2014 and now serves as a staple of the Oracle Marketing Cloud.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 69 contacts → | ||||
Exact match “Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 69 contacts → | ||||
Exact match “Niche Software Solutions is a software product company in the online marketing space.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 67 contacts → | ||||
Exact match “At Litmus, we know the importance of continuous innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 62 contacts → | ||||
Exact match “Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 61 contacts → | ||||
Exact match “Nimble is your CRM for smarter email marketing, engagement, and business growth.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 59 contacts → | ||||
Exact match “Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 59 contacts → | ||||
Exact match “AiTrillion is a sales and marketing automation platform built to grow E-commerce via powerful modules to maximize customer engagement and retention.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 55 contacts → | ||||
Exact match “Selzy – Email Marketing 2.0 with AI Email Generator Design stunning emails in under a minute?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 51 contacts → | ||||
Exact match “MailUp is the simple and scalable solution to design, send & automate marketing campaigns via Email, SMS and Messaging Apps.” Recorded in the RevenueBase company graph · Nov 5, 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 “open source email marketing software companies”. 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 979 open source email marketing software companies worldwide
See the full list, filter by size, metro and specialty, and access 2,476 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Open source email marketing software companies worldwide at a glance
As of Nov 5, 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 open source email marketing software companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “open source email marketing software companies” 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 2,476 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 5, 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.
Open source email marketing software companies by location
8 lists · largest firstEvery Open source email marketing software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Open source email marketing software companies based in the United States243
- Open source email marketing software companies based in the United Kingdom81
- Open source email marketing software companies based in India53
- Open source email marketing software companies based in France35
- Open source email marketing software companies based in the Netherlands35
- Open source email marketing software companies based in Canada32
- Open source email marketing software companies based in Germany25
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 “open source email marketing software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source email marketing software companies are there worldwide?
RevenueBase identified 979 company matches for open source email marketing software companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
BREVO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most open source email marketing software companies?
The United States leads with 243 companies, followed by the United Kingdom (81) and India (53). Every open source email marketing software companies list by country and city is linked on this page.
Which city has the most open source email marketing software companies?
London leads with 39 company records, followed by New York (14) 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 2,476 professional contacts with verified work emails tracked across these 979 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 979 open source email marketing software companies 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 open source email marketing software companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 979 matching company records for open source email marketing software companies worldwide, with 8,454 tracked contacts and 2,476 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 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 open source email marketing software companies 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 |  BREVObrevo.comHQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 889 contacts → |
“Brevo offers the most intuitive Customer Platform for the sustainable growth of all businesses and organizations (including nonprofits).” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Omnisendomnisend.comHQ: Global, United KingdomReported employees: 201-500 | Global, United Kingdom | 201-500 | Exact match | 298 contacts → |
“Let’s be real.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Icontacticontact.comHQ: Morrisville, NC, United StatesReported employees: 51-200 | Morrisville, NC, United States | 51-200 | Exact match | 147 contacts → |
“We believe powerful connections propel business growth.” Recorded description excerpt · November 5, 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 | 138 contacts → |
“In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sendinblue IS NOW Brevosendinblue.comHQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 127 contacts → |
“Sendinblue is now @Brevo” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Benchmark Emailbenchmarkemail.comHQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 121 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Emailclubemailclub.ioHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 111 contacts → |
“At EmailClub, we are building the strongest CRM team on the market.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Inxmailinxmail.deHQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 97 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Aweberaweber.comHQ: Doylestown, PA, United StatesReported employees: 51-200 | Doylestown, PA, United States | 51-200 | Exact match | 95 contacts → |
“For over 20 years, AWeber has helped entrepreneurs and small business owners connect with their prospects and customers through powerfully-simple email marketing solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Spotler UKspotler.comHQ: Guildford, United KingdomReported employees: 51-200 | Guildford, United Kingdom | 51-200 | Exact match | 90 contacts → |
“We are Spotler!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ICOMMicommkt.comHQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 85 contacts → |
“Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Flodeskflodesk.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 84 contacts → |
“Flodesk makes simple, intuitive software tools to help entrepreneurs grow their businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  APSISapsis.comHQ: Malmö, SwedenReported employees: 11-50 | Malmö, Sweden | 11-50 | Exact match | 83 contacts → |
“Your data holds more potential than you think.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Resendresend.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 77 contacts → |
“Email for developers” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  PRIVYprivy.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 73 contacts → |
“Email & SMS for online brands that need the tools & coaching to grow sales.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Responsysoracle.comHQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 71 contacts → |
“Responsys was purchased by Oracle in 2014 and now serves as a staple of the Oracle Marketing Cloud.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  ecomail.czecomail.czHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 69 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Niche Software Solutions PVT LTDnichelive.comHQ: Pune, VA, IndiaReported employees: 51-200 | Pune, VA, India | 51-200 | Exact match | 69 contacts → |
“Niche Software Solutions is a software product company in the online marketing space.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Litmuslitmus.comHQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 67 contacts → |
“At Litmus, we know the importance of continuous innovation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Mailmodomailmodo.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 62 contacts → |
“Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Nimblenimble.comHQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 61 contacts → |
“Nimble is your CRM for smarter email marketing, engagement, and business growth.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Dolistdolist.comHQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 59 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Aitrillion Ecommerce Marketing Automationaitrillion.comHQ: Claymont, DE, United StatesReported employees: 11-50 | Claymont, DE, United States | 11-50 | Exact match | 59 contacts → |
“AiTrillion is a sales and marketing automation platform built to grow E-commerce via powerful modules to maximize customer engagement and retention.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Selzy Email Marketingselzy.comHQ: Strovolos, CyprusReported employees: 11-50 | Strovolos, Cyprus | 11-50 | Exact match | 55 contacts → |
“Selzy – Email Marketing 2.0 with AI Email Generator Design stunning emails in under a minute?” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Mailupmailup.itHQ: Milan, ItalyReported employees: 51-200 | Milan, Italy | 51-200 | Exact match | 51 contacts → |
“MailUp is the simple and scalable solution to design, send & automate marketing campaigns via Email, SMS and Messaging Apps.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 979 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Open source email marketing software companies: dataset insights
November 5, 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
967 records in the displayed employee bands.
12 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 979 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 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 ↗
Open source email marketing software companies by location
8 lists · largest firstEvery Open source email marketing software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Open source email marketing software companies based in the United States243
- Open source email marketing software companies based in the United Kingdom81
- Open source email marketing software companies based in India53
- Open source email marketing software companies based in France35
- Open source email marketing software companies based in the Netherlands35
- Open source email marketing software companies based in Canada32
- Open source email marketing software companies based in Germany25
Cities
Questions about this company list
What does Exact match mean for open source email marketing software companies?
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 open source email marketing software companies did RevenueBase find worldwide?
The saved snapshot records 979 matching company records, 8,454 tracked contacts and 2,476 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 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 open source email marketing software companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/open-source-email-marketing-software-companies.
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 open source email marketing software companies worldwide
RevenueBase records 979 matching company records for open source email marketing software companies worldwide, with 8,454 tracked contacts and 2,476 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 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 open source email marketing software companies 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 | BREVObrevo.com HQ: Paris, FranceReported employees: 501-1,000 | Paris, France | 501-1,000 | Exact match | 889 contacts → |
“Brevo offers the most intuitive Customer Platform for the sustainable growth of all businesses and organizations (including nonprofits).” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Omnisendomnisend.com HQ: Global, United KingdomReported employees: 201-500 | Global, United Kingdom | 201-500 | Exact match | 298 contacts → |
“Let’s be real.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Icontacticontact.com HQ: Morrisville, NC, United StatesReported employees: 51-200 | Morrisville, NC, United States | 51-200 | Exact match | 147 contacts → |
“We believe powerful connections propel business growth.” Recorded description excerpt · November 5, 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 | 138 contacts → |
“In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sendinblue IS NOW Brevosendinblue.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 127 contacts → |
“Sendinblue is now @Brevo” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Benchmark Emailbenchmarkemail.com HQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 121 contacts → |
“Benchmark helps busy marketers move faster and make a bigger impact with email.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Emailclubemailclub.io HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 111 contacts → |
“At EmailClub, we are building the strongest CRM team on the market.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Inxmailinxmail.de HQ: Freiburg, GermanyReported employees: 51-200 | Freiburg, Germany | 51-200 | Exact match | 97 contacts → |
“Inxmail ist der serviceorientierte Tech-Spezialist für sichere, datengetriebene Kommunikation im E-Mail-Marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Aweberaweber.com HQ: Doylestown, PA, United StatesReported employees: 51-200 | Doylestown, PA, United States | 51-200 | Exact match | 95 contacts → |
“For over 20 years, AWeber has helped entrepreneurs and small business owners connect with their prospects and customers through powerfully-simple email marketing solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Spotler UKspotler.com HQ: Guildford, United KingdomReported employees: 51-200 | Guildford, United Kingdom | 51-200 | Exact match | 90 contacts → |
“We are Spotler!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ICOMMicommkt.com HQ: Caba, IndiaReported employees: 51-200 | Caba, India | 51-200 | Exact match | 85 contacts → |
“Activa tus estrategias de marketing, personaliza cada interacción, toma decisiones basadas en datos y maximiza tu performance a través de nuestra plataforma de marketing…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Flodeskflodesk.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 84 contacts → |
“Flodesk makes simple, intuitive software tools to help entrepreneurs grow their businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | APSISapsis.com HQ: Malmö, SwedenReported employees: 11-50 | Malmö, Sweden | 11-50 | Exact match | 83 contacts → |
“Your data holds more potential than you think.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Resendresend.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 77 contacts → |
“Email for developers” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | PRIVYprivy.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 73 contacts → |
“Email & SMS for online brands that need the tools & coaching to grow sales.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Responsysoracle.com HQ: United StatesReported employees: 1,001-5,000 | United States | 1,001-5,000 | Exact match | 71 contacts → |
“Responsys was purchased by Oracle in 2014 and now serves as a staple of the Oracle Marketing Cloud.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | ecomail.czecomail.cz HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 69 contacts → |
“Ecomail je moderní e-mail marketingová platforma pro rozesílku newsletterů a SMS, automatizovaný e-mailing a rychlý růst databáze kontaktů.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Niche Software Solutions PVT LTDnichelive.com HQ: Pune, VA, IndiaReported employees: 51-200 | Pune, VA, India | 51-200 | Exact match | 69 contacts → |
“Niche Software Solutions is a software product company in the online marketing space.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Litmuslitmus.com HQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 67 contacts → |
“At Litmus, we know the importance of continuous innovation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mailmodomailmodo.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 62 contacts → |
“Mailmodo is a complete email marketing solution enabling users to create and send app-like interactive emails to improve email conversions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Nimblenimble.com HQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 61 contacts → |
“Nimble is your CRM for smarter email marketing, engagement, and business growth.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dolistdolist.com HQ: Pessac, FranceReported employees: 51-200 | Pessac, France | 51-200 | Exact match | 59 contacts → |
“Dolist, Data specialist & Email Service Provider since supplies email production, audit, consulting services and training courses in Data Driven Marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Aitrillion Ecommerce Marketing Automationaitrillion.com HQ: Claymont, DE, United StatesReported employees: 11-50 | Claymont, DE, United States | 11-50 | Exact match | 59 contacts → |
“AiTrillion is a sales and marketing automation platform built to grow E-commerce via powerful modules to maximize customer engagement and retention.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Selzy Email Marketingselzy.com HQ: Strovolos, CyprusReported employees: 11-50 | Strovolos, Cyprus | 11-50 | Exact match | 55 contacts → |
“Selzy – Email Marketing 2.0 with AI Email Generator Design stunning emails in under a minute?” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Mailupmailup.it HQ: Milan, ItalyReported employees: 51-200 | Milan, Italy | 51-200 | Exact match | 51 contacts → |
“MailUp is the simple and scalable solution to design, send & automate marketing campaigns via Email, SMS and Messaging Apps.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 979 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Open source email marketing software companies: dataset insights
November 5, 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
967 records in the displayed employee bands.
12 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 979 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 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 ↗
Open source email marketing software companies by location
8 lists · largest firstEvery Open source email marketing software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Open source email marketing software companies based in the United States243
- Open source email marketing software companies based in the United Kingdom81
- Open source email marketing software companies based in India53
- Open source email marketing software companies based in France35
- Open source email marketing software companies based in the Netherlands35
- Open source email marketing software companies based in Canada32
- Open source email marketing software companies based in Germany25
Cities
Questions about this company list
What does Exact match mean for open source email marketing software companies?
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 open source email marketing software companies did RevenueBase find worldwide?
The saved snapshot records 979 matching company records, 8,454 tracked contacts and 2,476 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 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 open source email marketing software companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/open-source-email-marketing-software-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗