OSI Corporate Sponsors

The following companies are generously supporting the OSI.

Interested in sponsoring, or partnering with, the OSI? Please see our 2022 Sponsorship Prospectus and our 2021 Annual Report. Please contact the OSI to find out more about how your company can promote open source development, communities and software.







While the OSI is very grateful for their support, the OSI does not endorse these or any other companies.

The Open Source Initiative (OSI) is a California 501(c)3 non-profit raising awareness and adoption of open source software (OSS) through advocacy, education and building bridges between communities.

To promote and protect open source software and communities...

For over 20 years the Open Source Initiative (OSI) has worked to raise awareness and adoption of open source software, and build bridges between open source communities of practice. As a global non-profit, the OSI champions software freedom in society through education, collaboration, and infrastructure, stewarding the Open Source Definition (OSD), and preventing abuse of the ideals and ethos inherent to the open source movement.

Open source software is made by many people and distributed under an OSD-compliant license which grants all the rights to use, study, change, and share the software in modified and unmodified form. Software freedom is essential to enabling community development of open source software.