Company lists · Data refreshed November 2026
Top 25 Open source marketing automation software companies worldwide
RevenueBase identified 1,150 company matches for open source marketing automation software companies worldwide as of November 2026 and tracks 26,401 professional contacts across them, including 11,407 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for open source marketing automation 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 marketing automation 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 marketing automation software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,646 contacts → | ||||
Exact match “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 1,430 contacts → | ||||
Exact match “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 650 contacts → | ||||
Exact match “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 573 contacts → | ||||
Exact match “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 387 contacts → | ||||
Exact match “Collaborate, innovate and drive the business forward with HCLSoftware's Digital Transformation marketing software solution.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 270 contacts → | ||||
Exact match “Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 219 contacts → | ||||
Exact match “Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 185 contacts → | ||||
Exact match “SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 185 contacts → | ||||
Exact match “Mindbox, облачная платформа автоматизации маркетинга.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 169 contacts → | ||||
Exact match “With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 168 contacts → | ||||
Exact match “RightWave provides Marketing Automation Services for B2B companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 138 contacts → | ||||
Exact match “DYMATRIX is one of the leading German software and solutions providers for customer centered and intelligent marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 127 contacts → | ||||
Exact match “Click is the only complete marketing technology solution that is natively integrated with Microsoft Dynamics CRM.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 127 contacts → | ||||
Exact match “Sendinblue is now @Brevo” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 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 | |||||
| 17 | 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 | |||||
| 18 | 108 contacts → | ||||
Exact match “Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 107 contacts → | ||||
Exact match “Plataforma de Marketing Multicanal, simple y potenciado por IA.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 99 contacts → | ||||
Exact match “Radica is a leading Marketing Automation Provider, we synergize technology, ideas and customer intelligence to acquire, manage and optimize e-database to create monetary value…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 96 contacts → | ||||
Exact match “The world moves swiftly, but we move even faster At Scale Final, we recognize the rapid evolution of the world day by day.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 95 contacts → | ||||
Exact match “Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 90 contacts → | ||||
Exact match “We are Spotler!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 88 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 87 contacts → | ||||
Exact match “ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…” 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 marketing automation 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 1,150 open source marketing automation software companies worldwide
See the full list, filter by size, metro and specialty, and access 11,407 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source marketing automation 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 marketing automation software companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “open source marketing automation 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 11,407 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 marketing automation software companies by location
7 lists · largest firstEvery Open source marketing automation 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 marketing automation software companies based in the United States335
- Open source marketing automation software companies based in India96
- Open source marketing automation software companies based in the United Kingdom71
- Open source marketing automation software companies based in the Netherlands36
- Open source marketing automation software companies based in Canada35
- Open source marketing automation software companies based in Australia29
- Open source marketing automation software companies based in Germany26
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 marketing automation software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source marketing automation software companies are there worldwide?
RevenueBase identified 1,150 company matches for open source marketing automation 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?
Hubspot tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most open source marketing automation software companies?
The United States leads with 335 companies, followed by India (96) and the United Kingdom (71). Every open source marketing automation software companies list by country and city is linked on this page.
Which city has the most open source marketing automation software companies?
London leads with 28 company records, followed by Bangalore (18) and New York (15).
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 11,407 professional contacts with verified work emails tracked across these 1,150 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 1,150 open source marketing automation software companies worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 open source marketing automation 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 1,150 matching company records for open source marketing automation software companies worldwide, with 26,401 tracked contacts and 11,407 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 marketing automation 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 | HQ: Cambridge, United StatesReported employees: 5,001-10,000 | Cambridge, United States | 5,001-10,000 | Exact match | 11,646 contacts → |
“HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 1,430 contacts → |
“The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 650 contacts → |
“Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: San Jose, GA, United StatesReported employees: 1,001-5,000 | San Jose, GA, United States | 1,001-5,000 | Exact match | 573 contacts → |
“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 387 contacts → |
“Collaborate, innovate and drive the business forward with HCLSoftware's Digital Transformation marketing software solution.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Henderson, NV, United StatesReported employees: Not recorded | Henderson, NV, United States | Not recorded | Exact match | 270 contacts → |
“Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 219 contacts → |
“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 185 contacts → |
“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Moscow, RussiaReported employees: 201-500 | Moscow, Russia | 201-500 | Exact match | 185 contacts → |
“Mindbox, облачная платформа автоматизации маркетинга.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 169 contacts → |
“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: San Jose, CA, United StatesReported employees: 51-200 | San Jose, CA, United States | 51-200 | Exact match | 168 contacts → |
“RightWave provides Marketing Automation Services for B2B companies.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 138 contacts → |
“DYMATRIX is one of the leading German software and solutions providers for customer centered and intelligent marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 127 contacts → |
“Click is the only complete marketing technology solution that is natively integrated with Microsoft Dynamics CRM.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | 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. | |||||
| 17 | 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. | |||||
| 18 | HQ: Las Vegas, NV, United StatesReported employees: 51-200 | Las Vegas, NV, United States | 51-200 | Exact match | 108 contacts → |
“Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: San Antonio, United StatesReported employees: 51-200 | San Antonio, United States | 51-200 | Exact match | 107 contacts → |
“Plataforma de Marketing Multicanal, simple y potenciado por IA.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Shatin, Hong KongReported employees: 51-200 | Shatin, Hong Kong | 51-200 | Exact match | 99 contacts → |
“Radica is a leading Marketing Automation Provider, we synergize technology, ideas and customer intelligence to acquire, manage and optimize e-database to create monetary value…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Limassol, CyprusReported employees: 201-500 | Limassol, Cyprus | 201-500 | Exact match | 96 contacts → |
“The world moves swiftly, but we move even faster At Scale Final, we recognize the rapid evolution of the world day by day.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Waverley, South AfricaReported employees: 51-200 | Waverley, South Africa | 51-200 | Exact match | 95 contacts → |
“Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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. | |||||
| 24 | HQ: Tokyo, JapanReported employees: 51-200 | Tokyo, Japan | 51-200 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | HQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 87 contacts → |
“ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,150 company matches
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Open source marketing automation 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
1,146 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 1,150 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 marketing automation software companies by location
7 lists · largest firstEvery Open source marketing automation 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 marketing automation software companies based in the United States335
- Open source marketing automation software companies based in India96
- Open source marketing automation software companies based in the United Kingdom71
- Open source marketing automation software companies based in the Netherlands36
- Open source marketing automation software companies based in Canada35
- Open source marketing automation software companies based in Australia29
- Open source marketing automation software companies based in Germany26
Questions about this company list
What does Exact match mean for open source marketing automation 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 marketing automation software companies did RevenueBase find worldwide?
The saved snapshot records 1,150 matching company records, 26,401 tracked contacts and 11,407 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.
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Cite this list
RevenueBase Data Team. Top 25 open source marketing automation software companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/open-source-marketing-automation-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 marketing automation software companies worldwide
RevenueBase records 1,150 matching company records for open source marketing automation software companies worldwide, with 26,401 tracked contacts and 11,407 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 marketing automation 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 | HQ: Cambridge, United StatesReported employees: 5,001-10,000 | Cambridge, United States | 5,001-10,000 | Exact match | 11,646 contacts → |
“HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 1,430 contacts → |
“The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 650 contacts → |
“Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: San Jose, GA, United StatesReported employees: 1,001-5,000 | San Jose, GA, United States | 1,001-5,000 | Exact match | 573 contacts → |
“Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 387 contacts → |
“Collaborate, innovate and drive the business forward with HCLSoftware's Digital Transformation marketing software solution.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Henderson, NV, United StatesReported employees: Not recorded | Henderson, NV, United States | Not recorded | Exact match | 270 contacts → |
“Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 219 contacts → |
“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 185 contacts → |
“SendPulse is an AI-driven marketing platform that helps scaling businesses automate email and chatbot conversations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Moscow, RussiaReported employees: 201-500 | Moscow, Russia | 201-500 | Exact match | 185 contacts → |
“Mindbox, облачная платформа автоматизации маркетинга.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Chandler, AZ, United StatesReported employees: 201-500 | Chandler, AZ, United States | 201-500 | Exact match | 169 contacts → |
“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: San Jose, CA, United StatesReported employees: 51-200 | San Jose, CA, United States | 51-200 | Exact match | 168 contacts → |
“RightWave provides Marketing Automation Services for B2B companies.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 138 contacts → |
“DYMATRIX is one of the leading German software and solutions providers for customer centered and intelligent marketing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 127 contacts → |
“Click is the only complete marketing technology solution that is natively integrated with Microsoft Dynamics CRM.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | 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. | |||||
| 17 | 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. | |||||
| 18 | HQ: Las Vegas, NV, United StatesReported employees: 51-200 | Las Vegas, NV, United States | 51-200 | Exact match | 108 contacts → |
“Genesis Digital empowers entrepreneurs and small business owners to achieve financial freedom with affordable and easy-to-use marketing and sales automation software, and a…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: San Antonio, United StatesReported employees: 51-200 | San Antonio, United States | 51-200 | Exact match | 107 contacts → |
“Plataforma de Marketing Multicanal, simple y potenciado por IA.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Shatin, Hong KongReported employees: 51-200 | Shatin, Hong Kong | 51-200 | Exact match | 99 contacts → |
“Radica is a leading Marketing Automation Provider, we synergize technology, ideas and customer intelligence to acquire, manage and optimize e-database to create monetary value…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Limassol, CyprusReported employees: 201-500 | Limassol, Cyprus | 201-500 | Exact match | 96 contacts → |
“The world moves swiftly, but we move even faster At Scale Final, we recognize the rapid evolution of the world day by day.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Waverley, South AfricaReported employees: 51-200 | Waverley, South Africa | 51-200 | Exact match | 95 contacts → |
“Everlytic is a marketing messaging and automation platform that helps your business communicate better, smarter, and faster over email, SMS, voice broadcasting and web push.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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. | |||||
| 24 | HQ: Tokyo, JapanReported employees: 51-200 | Tokyo, Japan | 51-200 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | HQ: Indianapolis, IN, United StatesReported employees: 1,001-5,000 | Indianapolis, IN, United States | 1,001-5,000 | Exact match | 87 contacts → |
“ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Open source marketing automation 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
1,146 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 1,150 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.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗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 marketing automation software companies by location
7 lists · largest firstEvery Open source marketing automation 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 marketing automation software companies based in the United States335
- Open source marketing automation software companies based in India96
- Open source marketing automation software companies based in the United Kingdom71
- Open source marketing automation software companies based in the Netherlands36
- Open source marketing automation software companies based in Canada35
- Open source marketing automation software companies based in Australia29
- Open source marketing automation software companies based in Germany26
Questions about this company list
What does Exact match mean for open source marketing automation 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 marketing automation software companies did RevenueBase find worldwide?
The saved snapshot records 1,150 matching company records, 26,401 tracked contacts and 11,407 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
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Cite this list
RevenueBase Data Team. Top 25 open source marketing automation software companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/open-source-marketing-automation-software-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗