International development funding splits between massive foundations with broad mandates and small, laser-focused programs. These two sit at opposite ends of that spectrum, and both accept applications from nonprofits worldwide.

Amount not published. Worldwide. Rolling basis.

en.nippon-foundation.or.jp/involved/grant

Funder profile: kindora.co/funders/the-nippon-foundation

What we know: The foundation accepts unsolicited inquiries through an online form across eight priority areas: maritime and ocean affairs, disability, agriculture, Nikkei communities, Japanese studies, peacebuilding, primary education, and human resource development. Proposals outside those areas are less likely to receive full consideration. The foundation gives roughly $600 million annually, so the scale here is real, but the inquiry form is a first step, not a guaranteed path to funding.

Realistic fit: established nonprofits or research institutions with work that maps cleanly onto one of the eight named priority areas.

$1,000 to $30,000. Worldwide. Closes September 1, 2026.

foundation.halton.com/halton-foundation-grant-application/

Funder profile: kindora.co/funders/936036295

What we know: This is a niche annual grant for nonprofits researching indoor environmental quality: air quality, thermal comfort, breathable particulates, and IEQ-linked illness in occupied buildings. Overhead is capped at 10% of total project costs. The foundation's 990 filings show a median grant of $15,000, which sits comfortably in the middle of the stated range.

Realistic fit: university labs, research institutes, or NGOs with an active indoor air quality or building health research project.

The Nippon Foundation inquiry is worth submitting if your work aligns with a named priority area. For Halton, the September 1 deadline is firm, so have your research proposal and budget ready before mid-August.