| 501 | 4937 | Ogden Clinic |  | 5040 | 3284 | 2538 | 3879 |
| 502 | 5077 | Office of Public Health and Environmental Hazards | | 5431 | 3441 | 2538 | 3879 |
| 503 | 3353 | Office of Naval Research | | 2182 | 2970 | 2538 | 3316 |
| 504 | 4565 | Ocular Immunology and Uveitus Foundation | | 5188 | 2710 | 2538 | 3879 |
| 505 | 5188 | Oceanic Institute | | 7271 | 3367 | 2538 | 3879 |
| 506 | 7186 | Ocala Heart and Vascular Institute | | 7553 | 6471 | 2538 | 3879 |
| 507 | 7188 | Observatorio San Calixto |  | 6092 | 6636 | 2538 | 3879 |
| 508 | 619 | Observatório Nacional |  | 3008 | 1066 | 693 | 1136 |
| 509 | 4937 | Observatorio Colombiano de Ciencia y Tecnología |  | 3600 | 4173 | 2469 | 3879 |
| 510 | 21 | Oak Ridge National Laboratory | | 240 | 46 | 23 | 54 |
| 511 | 922 | Oak Ridge Institute for Science and Education | | 4113 | 899 | 2538 | 834 |
| 512 | 45 | NYU Langone Medical Center | | 451 | 203 | 198 | 32 |
| 513 | 2526 | Nuclear Energy Institute | | 3812 | 371 | 2538 | 3879 |
| 514 | 1758 | Novant Health (Presbyterian Healthcare) | | 728 | 844 | 2377 | 3316 |
| 515 | 7133 | Norwood Clinic | | 7767 | 6303 | 2538 | 3879 |
| 516 | 4275 | Norwalk Hospital | | 4350 | 2325 | 2538 | 3879 |
| 517 | 1493 | Northwestern Medicine (Northwestern Memorial Hospital) | | 573 | 370 | 442 | 3879 |
| 518 | 6523 | Northwest Orthopaedic Institute | | 7255 | 5413 | 2538 | 3879 |
| 519 | 4099 | Northwest Hospital & Medical Center | | 4022 | 2064 | 2538 | 3879 |
| 520 | 544 | Northwell Health (formerly North Shore-LIJ Health System) | | 485 | 316 | 111 | 2487 |
| 521 | 342 | Northshore University Healthsystem | | 809 | 712 | 586 | 537 |
| 522 | 6960 | Northern Rockies Conservation Cooperative | | 8011 | 5721 | 2538 | 3879 |
| 523 | 7829 | Northern California Research Corporation | | 7553 | 7613 | 2538 | 3879 |
| 524 | 3906 | Northeast Midwest Institute | | 5943 | 1653 | 2538 | 3879 |
| 525 | 4149 | North-South Institute |  | 4166 | 2109 | 2538 | 3879 |
| 526 | 2653 | North Florida/South Georgia Veterans Health System | | 5271 | 5832 | 2538 | 1084 |
| 527 | 1536 | NORC University of Chicago | | 1581 | 290 | 1070 | 3879 |
| 528 | 1229 | NOAA National Weather Service | | 12 | 18 | 2538 | 3879 |
| 529 | 4871 | NOAA Great Lakes Environmental Research Laboratory | | 1633 | 3431 | 2538 | 3879 |
| 530 | 4711 | NIH Intramural Sequencing Center | | 7684 | 7297 | 2538 | 1992 |
| 531 | 5310 | NIH Department of Clinical Bioethics | | 6531 | 3646 | 2538 | 3879 |
| 532 | 1389 | Nicklaus Children's Hospital (Miami Children's Hospital Pediatric Healthcare) | | 1605 | 1199 | 2538 | 1813 |
| 533 | 1780 | Newton Wellesley Hospital | | 4154 | 1668 | 2538 | 2141 |
| 534 | 2064 | New York State Institute for Basic Research in Developmental Disabilities | | 3144 | 1943 | 2538 | 2487 |
| 535 | 147 | New York Presbyterian University Hospital of Columbia and Cornell | | 741 | 328 | 650 | 177 |
| 536 | 5182 | New York Headache Center | | 5025 | 3610 | 2538 | 3879 |
| 537 | 3158 | New York Eye Cancer Center | | 5879 | 2229 | 2538 | 3316 |
| 538 | 1025 | New York Eye and Ear Infirmary | | 4622 | 1293 | 2319 | 1288 |
| 539 | 384 | New York Botanical Garden | | 291 | 183 | 1309 | 1596 |
| 540 | 2406 | New York Blood Center | | 5460 | 1151 | 1249 | 3879 |
| 541 | 1326 | New York Academy of Medicine | | 2288 | 759 | 2538 | 2104 |
| 542 | 970 | New Women's College Hospital | | 2485 | 1413 | 2538 | 582 |
| 543 | 6143 | New Mexico Petroleum Recovery Research Center | | 7174 | 4822 | 2538 | 3879 |
| 544 | 4297 | New Mexico Clinical Research and Osteoporosis Center | | 7406 | 5668 | 2538 | 2822 |
| 545 | 7629 | New Jersey Equine Clinic | | 7740 | 7226 | 2538 | 3879 |
| 546 | 4861 | New Jersey Center for Biomaterials | | 5986 | 4642 | 2538 | 3509 |
| 547 | 6557 | New Iberia Research Center | | 7733 | 5352 | 2538 | 3879 |
| 548 | 6504 | New Hampshire Musculoskeletal Institute | | 6299 | 5485 | 2538 | 3879 |
| 549 | 1989 | New England Complex Systems Institute | | 4172 | 737 | 2355 | 3509 |
| 550 | 4367 | Neuroscience Education Institute | | 5175 | 3893 | 2538 | 3509 |
| 551 | 3574 | Neuropsychiatric Research Institute | | 7285 | 6104 | 2538 | 1920 |
| 552 | 5909 | NeuroDevelopment Center | | 7133 | 4493 | 2538 | 3879 |
| 553 | 2326 | Neri New England Research Institutes | | 7180 | 4444 | 2538 | 1366 |
| 554 | 329 | Nemours Childrens Clinic | | 1050 | 573 | 785 | 554 |
| 555 | 6955 | Nebraska Spine + Pain Center | | 7553 | 6083 | 2538 | 3879 |
| 556 | 6261 | Nebraska Orthopaedic and Sports Medicine | | 6910 | 5049 | 2538 | 3879 |
| 557 | 1336 | Navy Medicine | | 788 | 3126 | 2144 | 1279 |
| 558 | 2473 | Natural Sciences and Engineering Research Council of Canada | | 556 | 431 | 2538 | 3879 |
| 559 | 742 | Natural History Museum of los Angeles County | | 1073 | 314 | 1044 | 2584 |
| 560 | 5516 | Native American Cancer Research | | 5048 | 4129 | 2538 | 3879 |
| 561 | 3068 | National Tropical Botanical Garden | | 3600 | 786 | 2538 | 3879 |
| 562 | 3474 | National Telecommunications and Information Administration | | 735 | 1404 | 2538 | 3879 |
| 563 | 2468 | National Technical Information Service | | 1267 | 386 | 2538 | 3879 |
| 564 | 7292 | National Surgery Adjuvant Breast Bowel Project | | 6302 | 6813 | 2538 | 3879 |
| 565 | 874 | National Solar Observatory | | 2504 | 660 | 1648 | 2141 |
| 566 | 6412 | National Science Library NSC / Bibliothèque scientifique nationale CNRC | | 7815 | 5058 | 2538 | 3879 |
| 567 | 3443 | National Resource Center for Health Information Technology | | 1689 | 1285 | 2538 | 3879 |
| 568 | 3222 | National Research Council Canada | | 4029 | 923 | 2538 | 3879 |
| 569 | 4275 | National Research Corporation | | 4805 | 2291 | 2538 | 3879 |
| 570 | 48 | National Renewable Energy Laboratory | | 501 | 79 | 61 | 171 |
| 571 | 3330 | National Rehabilitation Hospital Research Center | | 1899 | 1134 | 2538 | 3879 |
| 572 | 1223 | National Radio Astronomy Observatory | | 243 | 153 | 510 | 3879 |
| 573 | 6023 | National Perinatal Information Center | | 6580 | 4721 | 2538 | 3879 |
| 574 | 6643 | National Pediatric Myoclonus Center | | 7532 | 5567 | 2538 | 3879 |
| 575 | 3644 | National Optics Institute | | 5719 | 2527 | 2181 | 3879 |
| 576 | 393 | National Optical Astronomy Observatory | | 720 | 205 | 2426 | 725 |
| 577 | 9 | National Oceanic and Atmospheric Administration | | 30 | 6 | 22 | 68 |
| 578 | 3838 | National Minority AIDS Council | | 3934 | 1697 | 2538 | 3879 |
| 579 | 279 | National Library of Medicine | | 3 | 119 | 2538 | 537 |
| 580 | 255 | National Laboratory for Particle and Nuclear Physics | | 849 | 541 | 479 | 398 |
| 581 | 1907 | National Kidney Foundation | | 870 | 134 | 2538 | 3879 |
| 582 | 556 | National Jewish Medical and Research Center | | 1892 | 542 | 2538 | 401 |
| 583 | 1 | National Institutes of Health | | 1 | 2 | 2 | 5 |
| 584 | 217 | National Institute on Drug Abuse | | 967 | 37 | 2538 | 380 |
| 585 | 1120 | National Institute on Deafness and other Communication Disorders | | 3563 | 2426 | 1590 | 1300 |
| 586 | 662 | National Institute on Alcohol Abuse and Alcoholism | | 2544 | 680 | 2538 | 452 |
| 587 | 310 | National Institute on Aging | | 1633 | 946 | 923 | 218 |
| 588 | 4389 | National Institute of Statistical Sciences | | 3730 | 2538 | 2538 | 3879 |
| 589 | 14 | National Institute of Standards and Technology | | 42 | 14 | 21 | 83 |
| 590 | 6050 | National Institute of Science and Technology for Software Engineering | | 6384 | 4782 | 2538 | 3879 |
| 591 | 2173 | National Institute of Nursing Research | | 4983 | 3067 | 2538 | 2002 |
| 592 | 291 | National Institute of Neurological Disorders and Stroke | | 1231 | 865 | 363 | 320 |
| 593 | 421 | National Institute of Mental Health | | 478 | 416 | 2538 | 241 |
| 594 | 1612 | National Institute of Health John E. Fogarty International Center | | 3618 | 4035 | 2538 | 623 |
| 595 | 688 | National Institute of Health Clinical Center | | 5144 | 2193 | 1411 | 368 |
| 596 | 4915 | National Institute of Health Center for Scientific Review | | 3971 | 5590 | 2538 | 3316 |
| 597 | 2000 | National Institute of Health Center for Information Technology | | 1562 | 2714 | 2538 | 2039 |
| 598 | 2579 | National Institute of General Medical Sciences | | 1703 | 2523 | 2538 | 2919 |
| 599 | 1689 | National Institute of Food and Agriculture (Cooperative State Research Education and Extension Service) | | 721 | 412 | 1247 | 3879 |
| 600 | 260 | National Institute of Environmental Health Sciences | | 218 | 965 | 167 | 294 |
