- Supports the development of a number of open-source software projects, including the apache webserver. Includes license information, latest news, and project sites.
- Non-profit organization dedicated to eliminating restrictions on copying, redistributing, understanding, and modifying computer programs. GNU Project was begun to develop a complete free Unix-like operating system.
- A non-profit consortium dedicated to fostering the growth of Linux, and promoting standardization and technical collaboration. Provides details of activities and working groups, a collaboration forum, and developer services.
- An intellectual property company that was formed to promote Linux. It acquires patents and makes them available royalty-free to any company, institution or individual that agrees not to assert its patents against the Linux System.
- UK government portal which aims to encourage the use of Open Source Software by local authoritie. Offers opportunities for knowledge sharing and practical advice.
- Promotes awareness and understanding of the legal, social, technical and economic issues that arise when educational institutions engage with free and open source software. News, publications, events, and FAQ.
- Dedicated to managing and promoting the Open Source trademark for the good of the community. Includes a definition of 'Open Source', and a list of approved licenses.
- A European Union funded project that aims to facilitate transnational technology transfers and open source partnerships for enterprises and network of developers.
- Not-for-profit organisation helping to accelerate, broaden and strengthen the use of OSS in business and government. News and events, information about OSS, and articles.
- Non-profit organization devoted to advancing open source technology related to the Python programming language. Provides membership information, missions statement, and details of how to get involved.
- Non-profit corporation dedicated to protecting multimedia from control by private interests, by developing free and open protocols and software. Information about the foundation and its current projects.
