Grant and Funding Programs Offered by John D & Catherine T Macarthur Foundation

The John D. and Catherine T. MacArthur Foundation is a major private philanthropic funder that supports people and organizations working on complex social challenges. Its portfolio spans long-term strategic grantmaking, awards, and other philanthropic tools, with emphasis on transformative change rather than one-off giving.

Across the pages provided, the Foundation identifies several core areas of support, including climate solutions, criminal justice reform, local news, artificial intelligence and the public interest, journalism and media, Chicago-based commitments, field support, and initiatives in Nigeria. The Foundation also highlights historical grantmaking in areas such as human rights, migration, housing, conservation, juvenile justice, democracy, and reproductive health.

MacArthur describes a strategy-led approach in which most funding is tied to specific program goals. It generally does not fund unsolicited proposals, although it may review some that fit its guidelines and may also issue open calls for proposals from time to time. The Foundation says it uses grants, impact investments, contracts, convenings, and communications as part of its overall approach.

The public grants search shows thousands of grants and impact investments since 1978, including support for external organizations and general operations. The site also maintains grantseekers and grantee resources, funding FAQs, and grant guidelines, all of which reinforce that the organization actively distributes money to others.

The site presents MacArthur as a longstanding philanthropic institution with offices in Chicago, Nigeria, and India. Its mission is framed around building a more just, verdant, and peaceful world, with a strong emphasis on trust-based relationships with grantees and partners.