Company lists · Data refreshed November 2026
Top 25 Open source software companies worldwide
RevenueBase identified 727 company matches for open source software companies worldwide as of November 2026 and tracks 6,443 professional contacts across them, including 807 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for open source 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 4, 2026. Country and city lists for open source 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 software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 666 contacts → | ||||
Exact match “Webkul is one of the largest self-created open-source marketplaces in the world.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 2 | 149 contacts → | ||||
Exact match “Notre Mission est depuis 20 ans, d’inventer et de développer les Logiciels Libres et Open Source éthiques (ce que nous appelons la « GoodTech ») pour participer à changer le Monde…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 3 | 139 contacts → | ||||
Exact match “Software DELSOL, S.A.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 4 | 123 contacts → | ||||
Exact match “Frappe creates 100% open source software to help businesses grow sustainably.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 5 | 116 contacts → | ||||
Exact match “Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 6 | 95 contacts → | ||||
Exact match “Irontec es una empresa ubicada en Bilbao, en un centro empresarial con gran presencia de empresas tecnológicas a orillas de la ría del Nervión.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 7 | 84 contacts → | ||||
Exact match “Although there are thousands of independent software vendors in the world, Omega software is unlike most of them.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 8 | 77 contacts → | ||||
Exact match “Zestbrains pvt ltd is a Leading software development company based in India catering to the enterprise solutions worldwide.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 9 | 70 contacts → | ||||
Exact match “Savoir-faire Linux® is an outstanding team of 50 Free Software consultants based in Montreal and Rennes.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 10 | 54 contacts → | ||||
Exact match “Since 2007 We have been providing cutting-edge enterprise solutions with free and open source softwares.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 11 | 46 contacts → | ||||
Exact match “Openinside Co.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 12 | 42 contacts → | ||||
Exact match “Der Anspruch der synyx GmbH & Co.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 13 | 42 contacts → | ||||
Exact match “Open Source Solutions is your leading partner and service provider for various Infrastructure-based open source solutions in Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 14 | 41 contacts → | ||||
Exact match “Since 2009, we've specialized in implementing business systems based on Open Source solutions - from CRM (including SugarCRM), through content and document management (e.g.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 15 | 41 contacts → | ||||
Exact match “Linux® Polska - we are a Polish IT company founded in 2009.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 16 | 41 contacts → | ||||
Exact match “Ozgur Software Inc.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 17 | 41 contacts → | ||||
Exact match “AsadelTEK integrates open source software into SaaS for more optimal, economical, and efficient business needs.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 18 | 39 contacts → | ||||
Exact match “Seit 1995 unterstützen wir Unternehmen dabei, ihre IT-Infrastrukturen mit den richtigen Open Source Technologien aufzubauen, zu betreiben und weiterzuentwickeln.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 19 | 37 contacts → | ||||
Exact match “Lyra Infosystems is a trusted leader in enterprise open source solutions, dedicated to empowering businesses worldwide to thrive in today's dynamic digital landscape.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 20 | 37 contacts → | ||||
Exact match “We are the best pathfinder to enhance and accelerate your business goals through our range of services.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 21 | 35 contacts → | ||||
Exact match “Vishwayon Software Private Limited is an OpenSource global IT Services company that provides customized business solutions, using the state of the art development tools available…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 22 | 34 contacts → | ||||
Exact match “Since our inception in 2009, Ashnik has consistently led the way in introducing advanced open source technologies to the Southeast Asian and Indian markets.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 23 | 30 contacts → | ||||
Exact match “DonRiver provided OSS product and consulting services to Communication Service Providers, globally.” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 24 | 29 contacts → | ||||
Exact match “Como empresa líder em consultoria, serviços e soluções baseadas na plataforma Linux, oferecemos um vasto conjunto de programas integrados, gratuitos e de alta qualidade técnica…” Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase | |||||
| 25 | 28 contacts → | ||||
Exact match “25 years of Linux & Open Source expertise, applied to what matters right now: digital sovereignty, containerization & virtualization.” Recorded in the RevenueBase company graph · Nov 4, 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 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 727 open source software companies worldwide
See the full list, filter by size, metro and specialty, and access 807 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source software companies worldwide at a glance
As of Nov 4, 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 software companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “open source 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 807 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 4, 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 software companies by location
4 lists · largest firstEvery Open source software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “open source software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source software companies are there worldwide?
RevenueBase identified 727 company matches for open source 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?
Webkul tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most open source software companies?
The United States leads with 69 companies, followed by India (63) and France (49). Every open source software companies list by country and city is linked on this page.
Which city has the most open source software companies?
London leads with 12 company records, followed by Paris (9) and Berlin (7).
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 807 professional contacts with verified work emails tracked across these 727 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 727 open source 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
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- New lists
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Company intelligence · public preview
Top 25 open source 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 727 matching company records for open source software companies worldwide, with 6,443 tracked contacts and 807 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 4, 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 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 |  Webkulwebkul.comHQ: Noida, IndiaReported employees: 501-1,000 | Noida, India | 501-1,000 | Exact match | 666 contacts → |
“Webkul is one of the largest self-created open-source marketplaces in the world.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Linagoralinagora.comHQ: Issy-les-moulineaux, FranceReported employees: 201-500 | Issy-les-moulineaux, France | 201-500 | Exact match | 149 contacts → |
“Notre Mission est depuis 20 ans, d’inventer et de développer les Logiciels Libres et Open Source éthiques (ce que nous appelons la « GoodTech ») pour participer à changer le Monde…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Teamsystem Software Delsolsdelsol.comHQ: Mengíbar, SpainReported employees: 51-200 | Mengíbar, Spain | 51-200 | Exact match | 139 contacts → |
“Software DELSOL, S.A.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Frappefrappe.ioHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 123 contacts → |
“Frappe creates 100% open source software to help businesses grow sustainably.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Collaboracollabora.comHQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 116 contacts → |
“Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Irontecirontec.comHQ: Bilbao, SpainReported employees: 51-200 | Bilbao, Spain | 51-200 | Exact match | 95 contacts → |
“Irontec es una empresa ubicada en Bilbao, en un centro empresarial con gran presencia de empresas tecnológicas a orillas de la ría del Nervión.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Omega Softwareomega-software.hrHQ: Zagreb, CroatiaReported employees: 51-200 | Zagreb, Croatia | 51-200 | Exact match | 84 contacts → |
“Although there are thousands of independent software vendors in the world, Omega software is unlike most of them.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Zestbrains Pvt. LTDzestbrains.comHQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 77 contacts → |
“Zestbrains pvt ltd is a Leading software development company based in India catering to the enterprise solutions worldwide.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Savoir-Faire Linuxsavoirfairelinux.comHQ: Montréal, CanadaReported employees: 51-200 | Montréal, Canada | 51-200 | Exact match | 70 contacts → |
“Savoir-faire Linux® is an outstanding team of 50 Free Software consultants based in Montreal and Rennes.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Profelisprofelis.com.trHQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 54 contacts → |
“Since 2007 We have been providing cutting-edge enterprise solutions with free and open source softwares.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Openinside Co. W.L.Lopen-inside.comHQ: Manama, BahrainReported employees: 11-50 | Manama, Bahrain | 11-50 | Exact match | 46 contacts → |
“Openinside Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Synyx Gmbh & Co. KGsynyx.deHQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 42 contacts → |
“Der Anspruch der synyx GmbH & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Open Source Solutionsopensource.saHQ: Dhahran, Saudi ArabiaReported employees: 11-50 | Dhahran, Saudi Arabia | 11-50 | Exact match | 42 contacts → |
“Open Source Solutions is your leading partner and service provider for various Infrastructure-based open source solutions in Saudi Arabia.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Evolpe Consulting Groupevolpe.plHQ: Poznań, PolandReported employees: 11-50 | Poznań, Poland | 11-50 | Exact match | 41 contacts → |
“Since 2009, we've specialized in implementing business systems based on Open Source solutions - from CRM (including SugarCRM), through content and document management (e.g.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Linux Polska Sp. Z O.Olinuxpolska.plHQ: Warsaw, PolandReported employees: 51-200 | Warsaw, Poland | 51-200 | Exact match | 41 contacts → |
“Linux® Polska - we are a Polish IT company founded in 2009.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Özgür Yazılım A.Şozguryazilim.com.trHQ: İstanbul, TürkiyeReported employees: 11-50 | İstanbul, Türkiye | 11-50 | Exact match | 41 contacts → |
“Ozgur Software Inc.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Kotawaringin Timur, CO, IndonesiaReported employees: 11-50 | Kotawaringin Timur, CO, Indonesia | 11-50 | Exact match | 41 contacts → |
“AsadelTEK integrates open source software into SaaS for more optimal, economical, and efficient business needs.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Netwaysnetways.deHQ: Nuremberg, GermanyReported employees: 51-200 | Nuremberg, Germany | 51-200 | Exact match | 39 contacts → |
“Seit 1995 unterstützen wir Unternehmen dabei, ihre IT-Infrastrukturen mit den richtigen Open Source Technologien aufzubauen, zu betreiben und weiterzuentwickeln.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Lyra Infosystemslyrainfo.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 37 contacts → |
“Lyra Infosystems is a trusted leader in enterprise open source solutions, dedicated to empowering businesses worldwide to thrive in today's dynamic digital landscape.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Linux LABlinuxlab.proHQ: Yangon, MyanmarReported employees: 11-50 | Yangon, Myanmar | 11-50 | Exact match | 37 contacts → |
“We are the best pathfinder to enhance and accelerate your business goals through our range of services.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Vishwayon Software Pvt. LTDvishwayon.comHQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 35 contacts → |
“Vishwayon Software Private Limited is an OpenSource global IT Services company that provides customized business solutions, using the state of the art development tools available…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ashnikashnik.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“Since our inception in 2009, Ashnik has consistently led the way in introducing advanced open source technologies to the Southeast Asian and Indian markets.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Donriverdonriver.comHQ: AustraliaReported employees: 201-500 | Australia | 201-500 | Exact match | 30 contacts → |
“DonRiver provided OSS product and consulting services to Communication Service Providers, globally.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Linux Solutions Informáticalinuxsolutions.com.brHQ: Rio De Janeiro, BrazilReported employees: 1-10 | Rio De Janeiro, Brazil | 1-10 | Exact match | 29 contacts → |
“Como empresa líder em consultoria, serviços e soluções baseadas na plataforma Linux, oferecemos um vasto conjunto de programas integrados, gratuitos e de alta qualidade técnica…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Kangarootkangaroot.netHQ: Antwerp, BelgiumReported employees: 11-50 | Antwerp, Belgium | 11-50 | Exact match | 28 contacts → |
“25 years of Linux & Open Source expertise, applied to what matters right now: digital sovereignty, containerization & virtualization.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 727 company matches
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Open source software companies: dataset insights
November 4, 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
719 records in the displayed employee bands.
8 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 727 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 4, 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 software companies by location
4 lists · largest firstEvery Open source software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for open source 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 software companies did RevenueBase find worldwide?
The saved snapshot records 727 matching company records, 6,443 tracked contacts and 807 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 4, 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
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Cite this list
RevenueBase Data Team. Top 25 open source software companies worldwide. Snapshot: November 4, 2026. https://revenuebase.ai/companies/browse/open-source-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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- B2B demand generation agencies based in the United States
- instantly lookalikes
- Industrial iot companies based in the United States
- Industrial iot companies based in Brazil
- Industrial iot companies based in Germany
- Industrial iot companies based in Italy
Company intelligence · public preview
Top 25 open source software companies worldwide
RevenueBase records 727 matching company records for open source software companies worldwide, with 6,443 tracked contacts and 807 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 4, 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 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 | Webkulwebkul.com HQ: Noida, IndiaReported employees: 501-1,000 | Noida, India | 501-1,000 | Exact match | 666 contacts → |
“Webkul is one of the largest self-created open-source marketplaces in the world.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Linagoralinagora.com HQ: Issy-les-moulineaux, FranceReported employees: 201-500 | Issy-les-moulineaux, France | 201-500 | Exact match | 149 contacts → |
“Notre Mission est depuis 20 ans, d’inventer et de développer les Logiciels Libres et Open Source éthiques (ce que nous appelons la « GoodTech ») pour participer à changer le Monde…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Teamsystem Software Delsolsdelsol.com HQ: Mengíbar, SpainReported employees: 51-200 | Mengíbar, Spain | 51-200 | Exact match | 139 contacts → |
“Software DELSOL, S.A.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Frappefrappe.io HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 123 contacts → |
“Frappe creates 100% open source software to help businesses grow sustainably.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Collaboracollabora.com HQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 116 contacts → |
“Collabora is a global consultancy specializing in delivering the benefits of Open Source software to the commercial world.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Irontecirontec.com HQ: Bilbao, SpainReported employees: 51-200 | Bilbao, Spain | 51-200 | Exact match | 95 contacts → |
“Irontec es una empresa ubicada en Bilbao, en un centro empresarial con gran presencia de empresas tecnológicas a orillas de la ría del Nervión.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Omega Softwareomega-software.hr HQ: Zagreb, CroatiaReported employees: 51-200 | Zagreb, Croatia | 51-200 | Exact match | 84 contacts → |
“Although there are thousands of independent software vendors in the world, Omega software is unlike most of them.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Zestbrains Pvt. LTDzestbrains.com HQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 77 contacts → |
“Zestbrains pvt ltd is a Leading software development company based in India catering to the enterprise solutions worldwide.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Savoir-Faire Linuxsavoirfairelinux.com HQ: Montréal, CanadaReported employees: 51-200 | Montréal, Canada | 51-200 | Exact match | 70 contacts → |
“Savoir-faire Linux® is an outstanding team of 50 Free Software consultants based in Montreal and Rennes.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Profelisprofelis.com.tr HQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 54 contacts → |
“Since 2007 We have been providing cutting-edge enterprise solutions with free and open source softwares.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Openinside Co. W.L.Lopen-inside.com HQ: Manama, BahrainReported employees: 11-50 | Manama, Bahrain | 11-50 | Exact match | 46 contacts → |
“Openinside Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Synyx Gmbh & Co. KGsynyx.de HQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 42 contacts → |
“Der Anspruch der synyx GmbH & Co.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Open Source Solutionsopensource.sa HQ: Dhahran, Saudi ArabiaReported employees: 11-50 | Dhahran, Saudi Arabia | 11-50 | Exact match | 42 contacts → |
“Open Source Solutions is your leading partner and service provider for various Infrastructure-based open source solutions in Saudi Arabia.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Evolpe Consulting Groupevolpe.pl HQ: Poznań, PolandReported employees: 11-50 | Poznań, Poland | 11-50 | Exact match | 41 contacts → |
“Since 2009, we've specialized in implementing business systems based on Open Source solutions - from CRM (including SugarCRM), through content and document management (e.g.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Linux Polska Sp. Z O.Olinuxpolska.pl HQ: Warsaw, PolandReported employees: 51-200 | Warsaw, Poland | 51-200 | Exact match | 41 contacts → |
“Linux® Polska - we are a Polish IT company founded in 2009.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Özgür Yazılım A.Şozguryazilim.com.tr HQ: İstanbul, TürkiyeReported employees: 11-50 | İstanbul, Türkiye | 11-50 | Exact match | 41 contacts → |
“Ozgur Software Inc.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Kotawaringin Timur, CO, IndonesiaReported employees: 11-50 | Kotawaringin Timur, CO, Indonesia | 11-50 | Exact match | 41 contacts → |
“AsadelTEK integrates open source software into SaaS for more optimal, economical, and efficient business needs.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Netwaysnetways.de HQ: Nuremberg, GermanyReported employees: 51-200 | Nuremberg, Germany | 51-200 | Exact match | 39 contacts → |
“Seit 1995 unterstützen wir Unternehmen dabei, ihre IT-Infrastrukturen mit den richtigen Open Source Technologien aufzubauen, zu betreiben und weiterzuentwickeln.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Lyra Infosystemslyrainfo.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 37 contacts → |
“Lyra Infosystems is a trusted leader in enterprise open source solutions, dedicated to empowering businesses worldwide to thrive in today's dynamic digital landscape.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Linux LABlinuxlab.pro HQ: Yangon, MyanmarReported employees: 11-50 | Yangon, Myanmar | 11-50 | Exact match | 37 contacts → |
“We are the best pathfinder to enhance and accelerate your business goals through our range of services.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Vishwayon Software Pvt. LTDvishwayon.com HQ: Pune, IndiaReported employees: 11-50 | Pune, India | 11-50 | Exact match | 35 contacts → |
“Vishwayon Software Private Limited is an OpenSource global IT Services company that provides customized business solutions, using the state of the art development tools available…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ashnikashnik.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“Since our inception in 2009, Ashnik has consistently led the way in introducing advanced open source technologies to the Southeast Asian and Indian markets.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Donriverdonriver.com HQ: AustraliaReported employees: 201-500 | Australia | 201-500 | Exact match | 30 contacts → |
“DonRiver provided OSS product and consulting services to Communication Service Providers, globally.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Linux Solutions Informáticalinuxsolutions.com.br HQ: Rio De Janeiro, BrazilReported employees: 1-10 | Rio De Janeiro, Brazil | 1-10 | Exact match | 29 contacts → |
“Como empresa líder em consultoria, serviços e soluções baseadas na plataforma Linux, oferecemos um vasto conjunto de programas integrados, gratuitos e de alta qualidade técnica…” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Kangarootkangaroot.net HQ: Antwerp, BelgiumReported employees: 11-50 | Antwerp, Belgium | 11-50 | Exact match | 28 contacts → |
“25 years of Linux & Open Source expertise, applied to what matters right now: digital sovereignty, containerization & virtualization.” Recorded description excerpt · November 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 727 company matches
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Open source software companies: dataset insights
November 4, 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
719 records in the displayed employee bands.
8 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 727 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 4, 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 software companies by location
4 lists · largest firstEvery Open source software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for open source 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 software companies did RevenueBase find worldwide?
The saved snapshot records 727 matching company records, 6,443 tracked contacts and 807 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 4, 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 software companies worldwide. Snapshot: November 4, 2026. https://revenuebase.ai/companies/browse/open-source-software-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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