There are a variety of sources to seek funding for extramural funding for WRAIR investigators. 

These include, but are not limited to the following:
National Institute of Health
Centers for Disease Control and Prevention
Department of Defense
World Health Organization
The Gates Foundation
Medicines for Malaria Venture
Congressionally Directed Medical Research Program
Department of Homeland Security
amfAR
TriService Nursing Research Program

Other Federal Agencies
(all federal funding announcements can be searched at Grants.gov)
Department of Education
Department of Energy
Food and Drug Administration
Department of Agriculture
National Aeronautics and Space Administrations (NASA)

Please contact the Sponsored Research Support Program for a specific list of funding opportunities that are relevant to your research.