Grantmaker Investors in Arts, Culture & Media

The Barr Foundation is a Boston-based philanthropic organization focused on advancing climate solutions, arts and creativity, and educational opportunity. Founded by Amos Hostetter Jr. and Barbara Hostetter, the foundation supports nonprofits and initiatives that drive systemic change and strengthen communities, particularly in the Boston region. Through long-term partnerships and flexible funding, Barr Foundation backs organizations working on climate resilience, clean energy transition, public education, and cultural vibrancy. Its approach emphasizes collaboration, innovation, and scaling solutions that can deliver lasting impact.

Ford Foundation is one of the world’s largest philanthropic foundations, focused on advancing social justice, reducing inequality, strengthening democratic values, and expanding human dignity globally. Founded in 1936, the foundation supports nonprofits, movements, institutions, artists, researchers, and community leaders working to address systemic social, political, and economic challenges. The Ford Foundation operates across multiple regions worldwide and funds initiatives spanning democracy, racial justice, economic inclusion, technology and society, gender equity, arts and culture, journalism, and human rights.

The MacArthur Foundation is a private philanthropic foundation focused on advancing a more just, sustainable, and peaceful world through grantmaking, impact investments, fellowships, and institutional support. The foundation funds creative individuals, nonprofit organizations, research institutions, and mission-driven initiatives working across climate solutions, democracy, journalism, criminal justice reform, technology and society, global security, and community development. Known globally for the MacArthur Fellows Program, often referred to as the “Genius Grants,” the foundation combines long-term systems thinking with bold investments designed to address complex social and environmental challenges.

The Andrew W. Mellon Foundation is the largest philanthropic organization in the United States dedicated to supporting the arts, humanities, and higher education. Founded in 1969, the foundation funds institutions, artists, scholars, cultural organizations, and public initiatives that strengthen civic life, preserve cultural memory, and expand access to humanistic knowledge and creative expression. The foundation supports projects that advance social justice, public storytelling, historical understanding, cultural preservation, higher education innovation, and community-centered arts and humanities initiatives.