The LR Foundation is active in the development of many projects which encompass open source software for their communities.
The OpenBSD foundation exists as a place where donations can be made to further OpenBSD, OpenSSH, and related software projects.
Software Freedom Conservancy is a not-for-profit charity that helps promote, improve, develop, and defend Free, Libre, and Open Source Software (FLOSS) projects. Conservancy provides a non-profit home and infrastructure for FLOSS projects. This allows FLOSS developers to focus on what they do best — writing and improving FLOSS for the general public — while Conservancy takes care of the projects' needs that do not relate directly to software development and documentation.