Global Witness

Spectemur Agendo Inc

Washington, DC

SPECTEMUR AGENDO INC’s 2025 grants supported organizations working in areas including foreign policy, international affairs, reproductive rights, media, human rights, and social justice, with most reported funding going to recipients in Washington, DC and New York. Grants ranged from $15,000 to $60,000, with a median of $40,000; the filing says there is no specific application form or deadline.

Rockefeller Brothers Fund Inc

New York, NY

The Rockefeller Brothers Fund supports work on democracy, sustainable development and climate, and peacebuilding, as well as place-based efforts in China, Central America, and the Western Balkans and arts and culture in New York City. Its 2024 grants had a median of $60,000, though awards varied widely. It accepts unsolicited requests, but rarely funds them—fewer than 1 percent result in funding.

Bernard and Sandra Otterman Foundation

Wilmington, DE

Humanity United

San Francisco, CA

Humanity United funds systemic-change work in forced labor and human trafficking, peacebuilding, racial justice and equity, and public engagement, including journalism and policy work. It works globally, typically gives about $150,000, and reports annual grantmaking of roughly $18 million to $20 million. Requests are by invitation only; it does not accept unsolicited proposals, though its Asia-Pacific Seafood Supply Chains team accepts limited inquiries for closely aligned work.

Alan B Slifka Foundation

New York, NY

The Alan B. Slifka Foundation funds Jewish life and shared society, biomedical research—especially sarcoma, cancer and autism—and international disaster relief. Its 2024 grants ranged from $300 to $2,086,900, with a median of $5,000; sarcoma research grants generally do not exceed $50,000. Giving is concentrated in New York, with support also reaching other U.S. states and Israel; it states that it does not accept unsolicited requests, though some programs describe letters of inquiry or research applications.

Waverley Street Foundation

Palo Alto, CA

Waverley Street Foundation funds community-led climate solutions, including healthy food systems, farmland stewardship, clean energy, and community wellbeing, supporting organizations in communities around the world, with substantial 2024 grantmaking in California, New York, and Washington, DC. Its 2024 grants ranged from $5,000 to $20 million, with a median of $1 million. It does not accept unsolicited funding requests and gives only to preselected charitable organizations.