The MacArthur Foundation’s Impact Investments Program funds research and innovation to advance global social and environmental solutions and strengthen the impact investing ecosystem.
Funder: MacArthur Foundation
Due Dates (Anticipated): January 2027 (annual application deadline, projected)
Funding Amounts: ~$5 million in grants awarded annually; investment size/duration varies by project
Summary: Supports global social and environmental innovation through catalytic capital and grants to strengthen the impact investing ecosystem.
Key Information: Typically not open for unsolicited proposals; contact the Foundation to discuss alignment before applying.
The MacArthur Foundation’s Impact Investments Program provides catalytic capital and grant funding to address pressing social and environmental challenges globally. The program is designed to bridge market gaps, unlock resources for mission-driven organizations, and foster a robust impact investing ecosystem. Investments and grants are developed in close partnership with Foundation teams and collaborators, with strategic priorities including community development, climate innovation, Indigenous economic autonomy, local news, and inclusive media. In addition to direct investments, the program awards grants to strengthen field infrastructure, promote catalytic capital, and champion equity and inclusion in the investment and finance sectors.