The National Institutes of Health (NIH), located in Bethesda, Maryland, is a cornerstone of biomedical research in the United States. Established under the Department of Health and Human Services, the NIH is dedicated to advancing health through scientific research. It manages a vast array of health research programs across 27 institutes and centers, addressing critical issues from mental health to cancer and aging. With a significant portion of U.S. biomedical research funding sourced from its extramural programs, the NIH plays a crucial role in providing resources and support to researchers nationwide. Comprising over 1,200 principal investigators and thousands of postdoctoral fellows, the NIH is a leader in clinical and translational research, making vital contributions to community health and wellbeing. Explore the diverse range of support services offered by the NIH through their extensive directory.