The John D. and Catherine T. MacArthur Foundation supports creative people, effective institutions, and influential networks building a more just, verdant, and peaceful world. MacArthur strives toward transformative change on some of the world's most pressing social issues, including the existential threats of climate change, criminal justice reform, revitalizing local news in the U.S., expanding who creates, uses, and benefits from artificial intelligence, strengthening the well-being of Native communities, and empowering young people in Nigeria.

In addition to our award programs MacArthur Fellows and 100&Change, the Foundation continues our historic commitments to the role of journalism in a responsible and responsive democracy and to the strength and vitality of our headquarters city, Chicago. We are also significantly increasing financial capital for the social sector and strengthening research and advocacy about the social impacts of technology.

MacArthur is one of the nation's largest independent foundations. Since our founding in 1978, we have supported organizations that work in 119 countries. In addition to Chicago, MacArthur has offices in India and Nigeria.

MacArthur develops grantmaking strategies designed to meet specific goals. We encourage you to closely read information about each program to determine whether your project falls within our grantmaking guidelines. Please note that we award the majority of our grants to organizations identified by our Staff. Each year we also award grants to individuals through the MacArthur Fellows program, which does not accept applications or nominations. To learn more about MacArthur visit our web site, at www.macfound.org, read our FAQs, and review the grant guidelines for the areas of work most aligned with your organization.

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