he John D. and Catherine T. MacArthur Foundation is a private, independent grantmaking institution dedicated to helping groups and individuals foster lasting improvement in the human condition. Through the support it provides, the Foundation fosters the development of knowledge, nurtures individual creativity, strengthens institutions, helps improve public policy, and provides information to the public, primarily through support for public interest media. Grants are made through four programs: the Program on Global Security and Sustainability, the Program on Human and Community Development, the General Program, and the Fellows Program.

Program on Global Security and Sustainability
Program on Human and Community Development
General Program
MacArthur Fellows Program