Which NIH institutes spend the most on research?

The National Cancer Institute spent the most of NIH's institutes and centers in fiscal 2025, $6.6 billion of the $42.2 billion in research projects, followed by the allergy and infectious diseases institute ($5.7 billion) and the National Institute on Aging ($4.2 billion). When institutes share a project, each is counted for its part.

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Key facts

Measure: Funding (dollars). Written from the data below.

  • National Cancer Institute (NCI) has the highest figure, $6.6B, followed by National Institute of Allergy and Infectious Diseases (NIAID) ($5.72B) and National Institute on Aging (NIA) ($4.22B).
  • NIH Center for Information Technology (CIT) has the lowest figure, $1.34M, followed by Fogarty International Center (FIC) ($69.8M) and National Center for Complementary and Integrative Health (NCCIH) ($140M).
  • The highest is 4,942 times the lowest.

Source and date

Source
NIH RePORTER (National Institutes of Health)
License
Public domain (U.S. government work)
Data as of
Published

Citation

Chartly. “Which NIH institutes spend the most on research?” Chart. Data: NIH RePORTER (National Institutes of Health), https://reporter.nih.gov/ (data as of September 30, 2025). https://chart.ly/charts/nih-funding-by-institute (accessed October 15, 2026).

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The data

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Institute or center Funding (dollars)
National Cancer Institute (NCI) 6,598,029,965
National Institute of Allergy and Infectious Diseases (NIAID) 5,718,469,543
National Institute on Aging (NIA) 4,216,987,995
National Heart Lung and Blood Institute (NHLBI) 3,609,995,972
National Institute of General Medical Sciences (NIGMS) 3,096,132,422
National Institute of Neurological Disorders and Stroke (NINDS) 2,462,825,732
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 2,314,146,980
National Institute of Mental Health (NIMH) 2,115,392,327
NIH Office of the Director (OD) 2,019,706,327
National Institute of Child Health and Human Development (NICHD) 1,560,474,826
National Institute on Drug Abuse (NIDA) 1,516,968,938
National Institute of Environmental Health Sciences (NIEHS) 869,129,144
National Eye Institute (NEI) 820,536,838
National Center for Advancing Translational Sciences (NCATS) 810,157,010
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) 624,829,491
National Human Genome Research Institute (NHGRI) 594,597,571
National Institute on Alcohol Abuse and Alcoholism (NIAAA) 534,859,541
National Institute on Deafness and Other Communication Disorders (NIDCD) 486,736,177
National Institute on Minority Health and Health Disparities (NIMHD) 479,436,334
National Institute of Dental and Craniofacial Research (NIDCR) 472,053,341
National Library of Medicine (NLM) 469,723,858
National Institute of Biomedical Imaging and Bioengineering (NIBIB) 388,282,146
National Institute of Nursing Research (NINR) 169,509,502
National Center for Complementary and Integrative Health (NCCIH) 140,137,226
Fogarty International Center (FIC) 69,800,000
NIH Center for Information Technology (CIT) 1,335,000

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