
National Institutes of Health
Funds biomedical research nationwide, supporting university, nonprofit, and small business projects across major health initiatives.
National Institutes of Health (NIH) is the medical-research arm of the U.S. Department of Health and Human Services and the world's largest public funder of biomedical research. It sits in Bethesda and moves about $35.3 billion a year through 27 Institutes and Centers.
Its cross-IC routes include SBIR and STTR, parent R01, R03, and R21 announcements, the HEAL Initiative, and the NIH Common Fund. Those routes reach universities, nonprofits, and small businesses that can fit a standard parent mechanism or a trans-NIH initiative, rather than a narrow institute-specific call. The portfolio spans biotech, medtech, neurotech, synthetic biology, materials, and adjacent enabling tools.
NIH is strongest when a project can fit a standard parent mechanism or a cross-cutting initiative. Applicants need to match the science to the right announcement, then check the institute or center involvement, because the disease-area programs live under the individual IC slugs rather than under this parent record.