| 401 | 4260 | Institute for Neurodegenerative Disorders |  | 7733 | 6189 | 2538 | 2431 |
| 402 | 6043 | Indiana Hand to Shoulder Center | | 7193 | 4672 | 2538 | 3879 |
| 403 | 2627 | Richard L. Roudebush VA Medical Center Indianapolis Indiana | | 6401 | 6172 | 2538 | 829 |
| 404 | 4679 | Ingalls Health System | | 6631 | 2779 | 2538 | 3879 |
| 405 | 5253 | Illinois Natural History Survey | | 1347 | 4032 | 2538 | 3879 |
| 406 | 6773 | Intermountain Allergy and Asthma | | 7417 | 5805 | 2538 | 3879 |
| 407 | 7885 | Intermountain Injury Control Research Center | | 8011 | 8069 | 2538 | 3410 |
| 408 | 7648 | International Hearing Foundation | | 7812 | 7244 | 2538 | 3879 |
| 409 | 1901 | Internet2 | | 462 | 143 | 2538 | 3879 |
| 410 | 4289 | Institute on Governance |  | 4787 | 2316 | 2538 | 3879 |
| 411 | 3207 | Iowa City VA Medical Center | | 6654 | 6847 | 2538 | 964 |
| 412 | 5669 | Iowa Heart Center | | 6571 | 4190 | 2538 | 3879 |
| 413 | 2260 | Institute of Particle Physics | | 6427 | 5638 | 2538 | 701 |
| 414 | 6988 | IRIS Independent Research | | 7752 | 6061 | 2538 | 3879 |
| 415 | 7242 | Oscar G. Johnson VA Medical Center | | 6295 | 7315 | 2538 | 3660 |
| 416 | 3466 | NASA Infrared Telescope Facility | | 2004 | 1299 | 2538 | 3879 |
| 417 | 3799 | International Society for Heart & Lung Transplantation | | 3736 | 1641 | 2538 | 3879 |
| 418 | 6074 | Insall Scott Kelly Institute | | 6000 | 5767 | 2538 | 3660 |
| 419 | 5655 | West Virginia High Technology Consortium Foundation | | 8011 | 3500 | 2538 | 3879 |
| 420 | 5132 | Ibero American Science & Education Consortium | | 5864 | 3487 | 2538 | 3879 |
| 421 | 2934 | Institute of Transportation Engineers | | 1957 | 725 | 2538 | 3879 |
| 422 | 5999 | Institute for Tropical Ecology and Conservation | | 7553 | 4535 | 2538 | 3879 |
| 423 | 5253 | Institute for Telecommunication Sciences | | 1834 | 3982 | 2538 | 3879 |
| 424 | 1475 | Institut Universitaire de Cardiologie et de Pneumologie de Québec | | 2217 | 3310 | 2538 | 708 |
| 425 | 4217 | Institut Universitaire en Santé Mentale de Montréal | | 5651 | 2119 | 2538 | 3879 |
| 426 | 6801 | US Army Engineer Institute for Water Resources | | 3404 | 6176 | 2538 | 3879 |
| 427 | 4062 | G.V. (Sonny) Montgomery VA Medical Center | | 7424 | 6869 | 2538 | 1843 |
| 428 | 1428 | Jackson Health System (Memorial Hospital) | | 2723 | 1617 | 2538 | 1518 |
| 429 | 1805 | Jaeb Center for Health Research | | 4622 | 3210 | 2538 | 1267 |
| 430 | 4341 | Jewish Home and Hospital | | 5206 | 2350 | 2538 | 3879 |
| 431 | 4351 | JFK Medical Center (New Jersey Neuroscience Institute) | | 3861 | 2474 | 2538 | 3879 |
| 432 | 776 | Jewish General Hospital | | 560 | 1432 | 2538 | 282 |
| 433 | 778 | DOE Joint Genome Institute | | 229 | 964 | 2538 | 570 |
| 434 | 5924 | Jeffrey Modell Foundation | | 7707 | 4380 | 2538 | 3879 |
| 435 | 565 | Joslin Diabetes Center & Joslin Clinic | | 1958 | 388 | 2538 | 579 |
| 436 | 7654 | Joint Replacement Institute | | 7598 | 7312 | 2538 | 3879 |
| 437 | 3807 | James S McDonnell Foundation | | 4768 | 1596 | 2538 | 3879 |
| 438 | 163 | Kaiser Permanente | | 117 | 96 | 2538 | 119 |
| 439 | 4332 | Kansas City VA Medical Center | | 7149 | 7061 | 2538 | 1960 |
| 440 | 4196 | Kantar Health (Consumer Health Sciences) | | 4514 | 2154 | 2538 | 3879 |
| 441 | 1431 | W M Keck Observatory | | 4651 | 630 | 2538 | 2460 |
| 442 | 5488 | Kronos Early Estrogen Prevention Study (Kronos Longevity Research Institute) | | 7904 | 3482 | 2538 | 3879 |
| 443 | 4231 | Kelsey-Seybold Clinic | | 2876 | 2364 | 2538 | 3879 |
| 444 | 3207 | Kerlan-Jobe Orthopaedic Clinic | | 6890 | 3288 | 2538 | 2981 |
| 445 | 2421 | Kessler Rehabilitation Corporation | | 6351 | 2473 | 2538 | 2584 |
| 446 | 4994 | Kestrel Institute | | 5062 | 3345 | 2538 | 3879 |
| 447 | 1257 | Henry J Kaiser Family Foundation | | 505 | 58 | 2538 | 3509 |
| 448 | 1303 | Kingston General Hospital | | 2442 | 2323 | 2538 | 780 |
| 449 | 3538 | Kansas Health Institute | | 2310 | 1383 | 2538 | 3879 |
| 450 | 1907 | National Kidney Foundation | | 870 | 134 | 2538 | 3879 |
| 451 | 5059 | Kuakini Health System | | 4565 | 3479 | 2538 | 3879 |
| 452 | 4243 | Kentucky Science Center Louisville | | 6716 | 2050 | 2538 | 3879 |
| 453 | 1479 | Sun Microsystems Laboratories | | 4893 | 2049 | 2538 | 1227 |
| 454 | 5031 | Lady Davis Institute for Medical Research | | 4847 | 3419 | 2538 | 3879 |
| 455 | 6310 | La Familia Medical Center | | 7068 | 5106 | 2538 | 3879 |
| 456 | 7921 | Lafayette Clinic | | 7864 | 7767 | 2538 | 3879 |
| 457 | 4514 | NASA Langley Research Center | | 594 | 3038 | 2538 | 3879 |
| 458 | 7217 | Spine Institute | | 7359 | 6556 | 2538 | 3879 |
| 459 | 5943 | VA Southern Nevada Healthcare System | | 6212 | 6372 | 2538 | 3410 |
| 460 | 1396 | Lawson Health Research Institute | | 4255 | 2339 | 2538 | 916 |
| 461 | 7637 | Lake Champlain Gynecologic Oncology | | 7676 | 7254 | 2538 | 3879 |
| 462 | 3699 | Lean Construction Institute | | 3025 | 1549 | 2538 | 3879 |
| 463 | 6237 | Lebanon VA Medical Center | | 6138 | 7193 | 2538 | 3191 |
| 464 | 5357 | Aldo Leopold Wilderness Research Institute | | 5336 | 3855 | 2538 | 3879 |
| 465 | 4457 | Lexington VA Medical Center | | 6479 | 6436 | 2538 | 2555 |
| 466 | 686 | World Wide Web Consortium | | 34 | 1 | 2538 | 3879 |
| 467 | 6941 | Walther Cancer Institute | | 8011 | 5705 | 2538 | 3879 |
| 468 | 6067 | Warde Medical Laboratory | | 4704 | 4979 | 2538 | 3879 |
| 469 | 7609 | VA New Jersey War Related Illness and Injury Study Center | | 6279 | 7341 | 2538 | 3879 |
| 470 | 6853 | VA Medical Center Washington DC | | 4860 | 6177 | 2538 | 3879 |
| 471 | 7674 | Vaccine Research Institute of San Diego | | 7856 | 7279 | 2538 | 3879 |
| 472 | 3073 | Water Research Foundation AWWA | | 1368 | 1365 | 2538 | 3660 |
| 473 | 6442 | Western Montana Clinic | | 6720 | 5364 | 2538 | 3879 |
| 474 | 4094 | Western Research Institute | | 7030 | 4975 | 2538 | 3034 |
| 475 | 6149 | VA Medical Center West Palm Beach | | 6479 | 6578 | 2538 | 3410 |
| 476 | 5785 | Western Fisheries Research Center | | 6895 | 4333 | 2538 | 3879 |
| 477 | 3140 | VA Medical Center White River Junction Vermont | | 6971 | 5896 | 2538 | 1545 |
| 478 | 3622 | Whitman Walker Clinic | | 1999 | 1497 | 2538 | 3879 |
| 479 | 5161 | Las Vegas Skin & Cancer Clinics Ltd | | 5188 | 3569 | 2538 | 3879 |
| 480 | 3078 | Westchester County Medical Center | | 2923 | 1664 | 2538 | 3509 |
| 481 | 7483 | Wesley Neurology Clinic | | 7623 | 6979 | 2538 | 3879 |
| 482 | 4596 | Watson Clinic | | 3359 | 2905 | 2538 | 3879 |
| 483 | 4171 | William Alanson White Institute | | 4265 | 3084 | 2538 | 3660 |
| 484 | 1229 | NOAA National Weather Service | | 12 | 18 | 2538 | 3879 |
| 485 | 7073 | Weight Control and Diabetes Research Center | | 7661 | 6239 | 2538 | 3879 |
| 486 | 3765 | Wellesley Central Hospital | | 2891 | 1645 | 2538 | 3879 |
| 487 | 4080 | Wells National Estuarine Research Reserve | | 3410 | 2065 | 2538 | 3879 |
| 488 | 7503 | Robert J. Dole VA Medical Center Wichita Kansas | | 7041 | 7082 | 2538 | 3879 |
| 489 | 5025 | Yale-Griffin Prevention Research Center | | 6748 | 3234 | 2538 | 3879 |
| 490 | 3388 | Yale Medicine | | 1425 | 1229 | 2538 | 3879 |
| 491 | 6530 | Yellowstone Ecological Research Center | | 6863 | 5465 | 2538 | 3879 |
| 492 | 4924 | Yukon Kuskokwim Health Corporation | | 5636 | 3215 | 2538 | 3879 |
| 493 | 7806 | Xenobe Research Institute | | 7856 | 7886 | 2538 | 3660 |
| 494 | 3876 | Yale New Haven Health System | | 1136 | 1931 | 2538 | 3879 |
| 495 | 970 | New Women's College Hospital | | 2485 | 1413 | 2538 | 582 |
| 496 | 4727 | Coalition for Research in Women's Health | | 3631 | 3087 | 2538 | 3879 |
| 497 | 7021 | Wood Hudson Cancer Research Laboratory | | 7532 | 6201 | 2538 | 3879 |
| 498 | 2425 | World Policy Institute | | 1713 | 350 | 2538 | 3879 |
| 499 | 1915 | Worldwatch Institute | | 1801 | 124 | 2538 | 3879 |
| 500 | 1531 | World Wildlife Fund | | 1073 | 39 | 2538 | 3879 |
