Company lists · Data refreshed September 2026
Top 25 Open source erp companies worldwide
RevenueBase identified 3,923 open source erp companies worldwide as of September 2026 and tracks 65,077 professional contacts across them, including 13,963 with verified work emails. India is the largest market and Sao Paulo the largest hub.
This list covers open source erp companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for open source erp companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 erp companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,591 contacts → | ||||
Strong evidence “Odoo is an open-source suite of integrated business applications actively programmed, supported, and organized by Odoo SA.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,380 contacts → | ||||
Partial evidence “Unit4's next-generation enterprise resource planning (ERP) solutions power many of the world's mid-market organizations, bringing together the capabilities of Financials…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,375 contacts → | ||||
Indirect evidence “Tally Solutions Pvt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,570 contacts → | ||||
Indirect evidence “Türkiye’nin en büyük yerli iş yazılımı şirketi Logo Yazılım, kurulduğu 1984 yılından bu yana sektörün öncü şirketlerinden biri olarak faaliyetlerini sürdürüyor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,442 contacts → | ||||
Indirect evidence “Há 28 anos, a Benner transforma a gestão das empresas com tecnologia e inovação.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 729 contacts → | ||||
Partial evidence “Acumatica Cloud ERP is a comprehensive business management solution designed for today's digital economy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 669 contacts → | ||||
Strong evidence “Webkul is one of the largest self-created open-source marketplaces in the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 664 contacts → | ||||
Partial evidence “BUSY is a leading, on-premise ERP & accounting software company, enabling millions of businesses in over 20 countries to manage their business operations and GST/VAT compliances…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 622 contacts → | ||||
Partial evidence “HashMicro is a leading ERP provider in the Asia Pacific that helps businesses scale smarter, faster, and with greater confidence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 546 contacts → | ||||
Indirect evidence “A CIGAM amplia sua experiência no desenvolvimento de software de gestão empresarial desde 1986.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 501 contacts → | ||||
Indirect evidence “Accurate is a business software to run, manage, and monitor the business with ease.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 435 contacts → | ||||
Indirect evidence “Priority, trusted by over customers, delivers scalable, cloud-based business management solutions powered by AWS.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 399 contacts → | ||||
Partial evidence “ERP projelerinin işletmelerde başarısı için yazılımın kaliteli olması tek başına yeterli bir unsur değildir.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 363 contacts → | ||||
Indirect evidence “Die Abacus Research AG ist ein inhabergeführtes Schweizer Software-Unternehmen, das 570 Mitarbeitende beschäftigt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 362 contacts → | ||||
Indirect evidence “Whether you're a small manufacturing business or a large enterprise Arisoft Global has helped dozens of companies achieve new levels of productivity by integrating best in class…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 359 contacts → | ||||
Indirect evidence “BHC is a professional IT Services company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 349 contacts → | ||||
Partial evidence “Somos la empresa líder del mercado ERP en Argentina.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 322 contacts → | ||||
Partial evidence “In the 1970’s Monitor ERP took on the mission to help manufacturing companies to improve productivity while keeping costs low.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 287 contacts → | ||||
Indirect evidence “IAS is founded in Karlsruhe, Germany in 1989 by a handful of talented and dedicated people.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 260 contacts → | ||||
Partial evidence “Proginov, entreprise créée dans la région nantaise en 1996, est un éditeur d’ERP et s’adresse principalement aux Entreprises de Taille Intermédiaire (ETI) de l’industrie, du…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 251 contacts → | ||||
Indirect evidence “Since our founding in 1980, Abas has been a visionary and pioneer in the field of business software for production-related companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 215 contacts → | ||||
Partial evidence “Flexxus es una empresa que se dedica al desarrollo de software de gestion ERP para PYMES, más de 12 años en el mercado avalan nuestra experiencia y más de Empresas son las que…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 213 contacts → | ||||
Partial evidence “CORtracker is agile, 360° ERP Software of business management solutions for various industries and organizations of all sizes, from big to small and growing businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 207 contacts → | ||||
Partial evidence “Iptor is a global leader in cloud-based ERP software, empowering distribution, manufacturing, and warehousing businesses to operate smarter, faster, and more efficiently.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 206 contacts → | ||||
Indirect evidence “About Nebim With its experience and know-how accumulated since 1966, Nebim is one of Turkey’s most well-established independent software companies and has been supporting the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: open source erp companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names open source erp companies.
- Partial evidence
- Its own public description names part of open source erp companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name open source erp companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,923 open source erp companies worldwide
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Open source erp companies worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among open source erp companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for open source erp companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “open source erp companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names open source erp companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among open source erp companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 13,963 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Open source erp companies by location
30 lists · largest firstEvery Open source erp companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Open source erp companies based in India504
- Open source erp companies based in Brazil430
- Open source erp companies based in the United States235
- Open source erp companies based in France138
- Open source erp companies based in Germany127
- Open source erp companies based in Spain104
- Open source erp companies based in Türkiye90
- Open source erp companies based in Canada88
- Open source erp companies based in Pakistan75
- Open source erp companies based in Mexico73
- Open source erp companies based in Italy68
- Open source erp companies based in Egypt66
- Open source erp companies based in the United Kingdom66
- Open source erp companies based in the United Arab Emirates58
- Open source erp companies based in Argentina57
- Open source erp companies based in the Netherlands50
- Open source erp companies based in Switzerland42
- Open source erp companies based in Colombia41
- Open source erp companies based in Australia39
- Open source erp companies based in Belgium39
- Open source erp companies based in Indonesia37
- Open source erp companies based in South Africa37
- Open source erp companies based in Austria34
- Open source erp companies based in Chile31
- Open source erp companies based in Poland28
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names open source erp companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many open source erp companies are there worldwide?
RevenueBase identified 3,923 open source erp companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
ODOO, headquartered in Louvain-La-Neuve, tops this list with the largest team on record.
Which country has the most open source erp companies?
India leads with 504 companies, followed by Brazil (430) and the United States (235). Every open source erp companies list by country and city is linked on this page.
Which city has the most open source erp companies?
Sao Paulo leads with 48 headquartered companies, followed by Ahmedabad (41) and Dubai (35).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,963 verified decision-maker contacts tracked across these 3,923 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
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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 Smart Search, 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.