USAID
USAID provides comprehensive grant and partnership information for international development and international research.
Grants.gov
Grants.gov is a central resource hub for federal grants. A wide variety of both domestic and international grants are available.
Federal Business Opportunities
FBO is another high-quality database for federal grant opportunities. A wide variety of international opportunities are available.
Federal Business Opportunities Grants Website
National Science Foundation
The NSF funds research and education in fields of science and engineering. International grants are widely available.
National Science Foundation Grants Website
Fulbright Program
The Fulbright Program is the flagship international educational exchange program sponsored by the U.S. government
Fulbright Program Grants Website
GuideStar
GuideStar is a large database connecting the non-profit sector, including opportunities abroad
Bill and Melinda Gates Foundation
The Bill and Melinda Gates Foundation often works with the non-profit sector, but also with academic units on projects overseas. This institution does not award grants to individuals, but rather to non-profit and academic institutions.
The Bill and Melinda Gates Foundation Grants Website
National Endowment for the Arts
NEA is an independent federal agency focusing on the arts, and although its primary remit is domestic, there are also international opportunities available.
National Endowment for the Arts Grants Website
National Endowment for the Humanities
NEH is an independent federal agency and one of the largest sources of funding for humanities programs in the US. Similar to NEA there are also a wide variety of international grants available.
National Endowment for the Humanities Grants Website
National Endowment for Democracy
NED is a private non-profit focusing on governance and education overseas. It provides grants for incoming and outgoing scholars, similar to Fulbright, for projects related to the social sciences.
National Endowment for Democracy Grants Website
The Carter Center
The Carter Center focuses on governance and health-related challenges globally. This is a high-quality resource for networking and partnership in specific countries and regions.
The Carter Center Grants Website
National Institutes of Health
NIH is a division of the U.S. Department of Health and Human Services and is one of the largest funding sources of biomedical research globally.
National Institutes of Health Grants Website
Science Magazine
Science magazine lists additional international funding sources for specific regions which may require paid or institutional affiliation.
Science Magazine Grants Website
Google Research has outreach programs for the US and international academic community and ongoing funding opportunities for special projects globally.