Best Open Source Companies in Germany
The 100 best Open Source companies in Germany in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Adjust.
Germany's Open Source ecosystem gets ranked here by disclosed equity funding and recent funding momentum, covering 100 companies with $867M in total capital raised. No unicorns yet. But the numbers tell a story worth paying attention to.
Adjust leads the funding table at $259M raised, followed by Jedox at $150M and Camunda at $126M. That top tier alone accounts for over half the ecosystem's disclosed capital, which is the kind of concentration you see when a few companies find genuine enterprise pull. The global open source market sat at roughly $30.0B in 2019 and is forecast to reach $100.0B by 2030, compounding at 18.09% annually. Security vulnerabilities remain the structural friction worth watching, as enterprises weigh open access against exposure risk. As shown in 2016 research, community-driven development models can accelerate code quality, which is partly why corporate procurement has warmed so steadily to open source stacks. So where does Germany fit? Right at the center of that shift, with vector-database specialist Qdrant ($38M) and workflow-automation player Camunda both attracting institutional backing from names like Insight Partners and Crane Venture Partners. I'd call the funding base here early but directionally clear.
- HTF MI
Ranked: Best Open Source companies in Germany
| # | Company | Last round | Disclosed funding | Employees | Stage | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Abby Open source based feature flag management platform | — | — | — | Unfunded | Tim Raderschad Founder | — | — | — |
| 2 | Adblock Plus Provider of open source software for blocking advertisements | — | — | 78 | Unfunded | Till Faida CEO | Tailwind CSSAmazon Web ServicesMobX+9 | — | — |
| 3 | agorum Cloud-based platform for document management | — | — | 19 19 → 23 (+21%) | Unfunded | Oliver Schulze Managing Director | ContaoPHPTwitch Player+13 | — | — |
| 4 | aribu systems Open source CMS basis framework software | — | — | — | Unfunded | Sascha Momcilovic Owner & Managing Director | — | — | — |
| 5 | Artivity Open-source software to record & share digital artwork | — | — | — | Unfunded | Sebastian Faubel Co-Founder | — | — | — |
| 6 | Autark We're an open source software company building digital tools for collaboration. | — | — | 41 | — | — | — | — | — |
| 7 | Automatisch Open source based workflow automation platform | — | — | — | Unfunded | Omer Aydin Co-Founder & Managing Director | Node.jsMUINext.js+10 | — | — |
| 8 | Basebox Open source white box router | — | — | 10 | Unfunded | — | — | — | — |
Top 12 Open Source companies in Germany
#1
Series B · Berlin, Berlin · founded 2020 · 23 employees$37.8Mraised▾
Developer of vector search engine for AI retrieval and similarity matching. The engine supports hybrid dense and sparse retrieval with metadata filtering and real-time updates. It offers solutions for recommendation systems, semantic search, data analysis, and AI agents. The engine is designed for speed, accuracy, and scalability, suitable for various deployment models.
- Mar 2026Series B$50M
- Jan 2024Series A$28M
- Apr 2023Seed$7.5M
- Jan 2022Seed$2.3M
#2
Series A · Munich, Bavaria · founded 2015 · 16 employees$27.5Mraised▾
Cloud based identity and access management solutions. It offers an OAuth2 and OpenID connect server that connects to existing identity provider through a consent app to mitigate attack vectors. It offers a tool for reverse identity and access proxy that authorizes http requests. User sessions are provided via JSON web token.
- Apr 2024Series A$5M
- Dec 2021Series A$22.5M
#3
Acquired · Berlin, Berlin · founded 2012 · 149 employees$259.1Mraised▾
Cloud-based mobile marketing software solution provider. It provides an open-source SDK that enables app developers to track and analyze things like user acquisition, feature releases, and user lifetime cohorts. Also enables the tracking of interactions in the app in real-time to see how users engage over their full lifetime. Clients include some of the world's largest brands such as Baidu, Deutsche Telekom, Universal Music, Spotify, and Viacom.
- Jun 2019Series F$227M
- Oct 2015Series D$17M
- Sep 2014Series C$7.6M
- Jun 2013Series B$4.5M
#4
Series C · Freiburg im Breisgau, Baden Wurttemberg · founded 2002 · 396 employees$150Mraised▾
SaaS-based platform for accounting and financial planning solutions. It offers solutions for sales planning, sales forecasting, financial planning, budgeting, forecasting, reporting, analytics, predictive planning and forecasting, HR planning, capital expenses, financial consolidation, and more.
- Jan 2021Series C$100M
- Apr 2018Series B$24.6M
- Jun 2008Series A$5.4M
#5
Series B · Berlin, Berlin · founded 2013 · 93 employees$126Mraised▾
Open source platform workflow and decision automation for automating the business processes. It offers modules which include BPMN workflow engine, DMN decision engine, modeler, task list, cockpit, and optimize. Its features include human task management, service orchestration, workflow monitoring, business monitoring, reporting dashboards, and BPMN process diagrams & DMN decision tables.
- Mar 2021Series B$97.6M
- Dec 2018Series A$28.4M
#6
Series A · Kiel, Schleswig-holstein · founded 2017 · 13 employees$41Mraised▾
Platform offering integrated cloud development environment. It includes a multi-track development solution that provides users with multiple workspaces for bugging, code review, etc. The features of the product include workflow automation, automated code execution, debugging, code reviews, source code centralization, etc.
- Nov 2022Series A$25M
- Apr 2021Series A$13M
- Oct 2020Seed$3M
#7
Series B · Cologne, North Rhine Westphalia · founded 2014 · 25 employees$58.6Mraised▾
A distributed free and open source database with a multi data model for documents, graphs, and key values. Arango enables developers to build high performance applications on top of ArangoDB using a convenient SQL like query language named AQL. Arango contributes to the project by providing architects, developers, etc. For its enterprise users, ArangoDB GmbH offers subscriptions, support as part of development, training and consulting.
- Oct 2021Series B$27.8M
- Mar 2019Series A$10M
- Dec 2017Series A$11.6M
- Jun 2017Series A$4.8M
#8
Seed · Munich, Bavaria · founded 2021 · 12 employees$6.4Mraised▾
Provider of frameworks for data processing for ML operations. The frameworks enable coders and analysts to implement various data processing models for data analysis. The frameworks help in the implementation of ML models including hyperparametric tuning, statistical analysis, and visualizations. It automates the data processing of data scientists and improves produtivity.
- Oct 2023Seed$3.7M
- Dec 2021Seed$2.7M
#9
Acquired · Germany · founded 2020 · 74 employees$39Mraised▾
Developer of search foundation providing embeddings, reranker, and reader capabilities. The company offers tools to convert URLs to LLM-friendly input. It provides multimodal multilingual embeddings and a reranker for maximizing search relevancy. The platform allows users to read URLs and fetch content, search the web, and get SERP. It offers an API to access its services in LLMs.
- Nov 2021Series A$30M
- Sep 2020Seed—
#10
Series D · Olpe, North Rhine Westphalia · founded 1996 · 236 employees$67.8Mraised▾
Open-Xchange develops and provides enterprise collaboration software. It provides web-based communication, collaboration and office productivity software, which enable the integration of email, documents, project scheduling and social media management solutions. Its cloud-based solution OX App Suite connects business and personal worlds, across devices and legacy systems and helps individuals to collaborate, work and communicate.
- Oct 2017Series D$24.8M
- Dec 2016Series C$5.2M
- Jul 2013Series C$20M
- Nov 2008Series B$9M
#11
Funding Raised · Berlin, Berlin · founded 2011$11Mraised▾
Provider of cloud-based open-source framework to accelerate intelligent solutions. It enables the connection to IoT with context information Mgmt and extensive data services in the cloud. It works in information communication tech, agrifood, manufacturing, media, clean energy, and tech energy industries.
- Oct 2022Grant (prize money)$280K
- Sep 2021Grant (prize money)$397.9K
- Jan 2021Grant (prize money)$241.9K
- Oct 2020Grant (prize money)$5.1M
#12
Seed · Berlin, Berlin · founded 2022 · 3 employees$4.1Mraised▾
Open-source observability and analytics platform for LLM applications. It supports developers trace and debug complex applications, allowing them to understand the impact of changes on the overall application. It offers features including tracing LLM chains and measuring the quality of outputs.
- Nov 2023Seed$4M
- 2023Seed$500K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Open Source coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.