Company lists · Data refreshed September 2026
Top 25 Open source erp software companies based in Germany
RevenueBase identified 64 open source erp software companies headquartered in Germany as of September 2026 and tracks 913 professional contacts across them, including 281 with verified work emails and 29 with mobile numbers. Berlin is the largest hub.
This list covers open source erp software companies headquartered in Germany, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
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 erp software companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 251 | ||||
“Since our founding in 1980, Abas has been a visionary and pioneer in the field of business software for production-related companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 96 | ||||
“ERP Solutions * CRM Solutions * Document Management System (DMS)* Business Intelligence Solution * Point of Sale Solution (POS)* Application Development Framework VIENNA Advantage…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 82 | ||||
“orgaMAX ist Dein Softwareanbieter für die Herausforderungen im Arbeitsalltag.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 47 | ||||
“Durch Technologiebegeisterung, Kreativität und Kundennähe schaffen wir Zukunft.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Synyx Gmbh & Co. KGIndirect evidence | 38 | |||
“Der Anspruch der synyx GmbH & Co.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 33 | ||||
“Die eEvolution GmbH & Co.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“Seit über 40 Jahren machen wir mit unserem ERP-System FEPA die Unternehmenswelt ein Stück einfacher!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 | ||||
“WER sind wir Die SelectLine Software GmbH ist seit 25 Jahren Spezialist für kaufmännische Software.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 23 | ||||
“Myfactory is part of Forterro, a provider of software solutions for more than small and medium-sized enterprises across Europe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 | ||||
“metasfresh ERP is a modern Open Source ERP solution developed by metas GmbH (Bonn, Germany) for small and medium-sized enterprises (SMEs) in the food industry, wholesale, the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 | ||||
“Die K&K Software AG aus Gerolzhofen existiert seit dem Jahr und ist in den Bereichen Open Source ERP (ERPNext), Softwareentwicklung, Internetanwendungen und Netzwerkbetreuung…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 | ||||
“Du hast Ärger mit Deiner aktuellen Software.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 | ||||
“Die GDI GmbH entwickelt seit ihrer Gründung 1979 am Standort in Landau in der Pfalz kaufmännische Software für mittelständische Unternehmen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 | ||||
“Monitor ist einer der führenden Anbieter von umfassenden ERP-Lösungen für produzierende mittelständische Unternehmen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Vepos Erp-Software FÜR Handel & DienstleisterIndirect evidence | 8 | |||
“Wir digitalisieren den Mittelstand – mit Erfahrung und echter Partnerschaft.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | Twoeyes Software GmbhStrong evidence | 7 | |||
“twoeyes software entwickelt seit 25 Jahren webbasierte ERP-Software.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 | ||||
“As a certified Odoo partner, we specialize in delivering tailored solutions that optimize internal processes for businesses of all sizes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 | ||||
“Am 01.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | MetacarpStrong evidence | 5 | |||
“Die Metacarp GmbH mit Sitz in Wiesbaden entwickelt moderne, umfassende ERP-Softwarelösungen für mittelständische Unternehmen der Nahrungsmittel, Kosmetik, Chemie- und…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 | ||||
“avista.ERP – mit Sicherheit flexibler Nur wer auf dem neuesten Stand der Technik ist und sich von Althergebrachtem frei machen kann, hat genügend Spielraum, nicht die erste…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | GCI MBHIndirect evidence | 5 | |||
“Mit dem Fokus auf dem täglichen Betrieb und der Optimierung des Kerngeschäfts findet eine kostensparende und moderne Verwaltung der geschäftlichen Prozesse oft nur eine…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Mybe GmbhIndirect evidence | 4 | |||
“Wir sind an Ihrer Seite Sie haben mit uns den richtigen Partner, wenn es um Lösungen für eine prozessorientierte Unternehmenssteuerung geht.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Rowisoft GmbhPartial evidence | 4 | |||
“ERP/Hersteller” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 | ||||
“Equitania Software GmbH is a computer software company based out of Weiherstraße 13, Pforzheim, Baden-Württemberg, Germany.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 | ||||
“majesty GmbH is the company responsible for the development and distribution of the majesty ERP-System.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 64 open source erp software companies based in Germany
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Open source erp software companies based in Germany at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Germany whose own description of what they do matches “open source erp software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among open source erp software companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
- 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 an evidence 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, 281 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 5, 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.
Frequently asked
How many open source erp software companies are there based in Germany?
RevenueBase identified 64 open source erp software companies headquartered in Germany 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?
ABAS, headquartered in Karlsruhe, tops this list with the largest team on record.
Which city has the most open source erp software companies?
Berlin leads with 4 headquartered companies, followed by Karlsruhe (3) and Koln (3).
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 281 verified decision-maker contacts tracked across these 64 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 5, 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 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.
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