Federal Grants by Topic
Federal agencies fund research and programs across a wide range of topic areas, and understanding how that funding is organized is the first step toward finding the right opportunity. NIH funds cancer biology, biomedical research, and public health. NSF and DARPA fund AI, advanced computing, and basic science. USDA funds agricultural innovation and rural development. SAMHSA funds mental health and substance use programs. HUD funds housing and community development.
The ten topic categories below cut across agency boundaries and surface all active federal grants relevant to each research or program area — regardless of which agency is posting them. Each topic page shows live funding opportunities with award ceilings, close dates, and AI-generated briefings pulled daily from Grants.gov. If your organization works across multiple areas, browse each topic separately to build a complete picture of available federal funding.
NCI, DOD oncology and tumor research funding.
Phase I & II grants for startups and small businesses.
SAMHSA, NIMH behavioral health and crisis programs.
DOE, EPA, ARPA-E renewable energy and climate grants.
NSF, DARPA artificial intelligence and advanced computing.
CDC, HRSA disease prevention and community health.
NIH genomics, drug discovery, and translational medicine.
USDA farming, rural development, and food security.
Dept. of Education, NSF STEM and job training.
HUD affordable housing and community development.