The John D. and Catherine T. MacArthur Foundation is an American private foundation that makes grants and impact investments to support non-profit organizations in approximately 117 countries around the world. As of 2025, the MacArthur Foundation has an endowment of $9 billion and provides hundreds of millions of dollars annually in grants and impact investments.
The John D. and Catherine T. MacArthur Foundation is an American private foundation that makes grants and impact investments to support non-profit organizations in approximately 117 countries around the world. As of 2025, the MacArthur Foundation has an endowment of $9 billion and provides hundreds of millions of dollars annually in grants and impact investments.
Source: Wikipedia "MacArthur Foundation" · CC BY-SA 4.0
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