| 501 | 3320 | Allergy Research Foundation | 5144 | 1560 | 2538 | 3660 |
| 502 | 3068 | ETR Associates | 2224 | 1305 | 2538 | 3660 |
| 503 | 6916 | VA Medical Center Fargo North Dakota | 6322 | 6904 | 2538 | 3660 |
| 504 | 1122 | Guttmacher Institute | 1336 | 131 | 1165 | 3660 |
| 505 | 3528 | Mount Auburn Hospital | 4122 | 1988 | 2538 | 3660 |
| 506 | 2963 | Mount Wilson Observatory | 7193 | 969 | 2538 | 3660 |
| 507 | 4074 | National Centers for Environmental Prediction | 208 | 3423 | 2538 | 3660 |
| 508 | 2825 | National Child Traumatic Stress Network | 6079 | 904 | 2538 | 3660 |
| 509 | 5217 | Perry Institute for Marine Science | 6273 | 4562 | 2538 | 3660 |
| 510 | 6840 | Pacific Health Research and Education Institute Hawaii | 7684 | 6601 | 2538 | 3660 |
| 511 | 6459 | Plasma Proteome Institute | 6651 | 6197 | 2538 | 3660 |
| 512 | 3562 | Prince William Sound Science Center | 2923 | 3706 | 2063 | 3660 |
| 513 | 7212 | Aleda E. Lutz VA Medical Center Saginaw Michigan | 5928 | 7291 | 2538 | 3660 |
| 514 | 6884 | South Bend Medical Foundation | 6893 | 6807 | 2538 | 3660 |
| 515 | 4945 | Sonoran Spine Center | 5442 | 4259 | 2538 | 3660 |
| 516 | 3782 | Southcentral Foundation | 2553 | 2552 | 2538 | 3660 |
| 517 | 2934 | Saint Joseph Mercy Health System | 2224 | 2092 | 2254 | 3660 |
| 518 | 3589 | Southwest Oncology Group | 2734 | 2175 | 2538 | 3660 |
| 519 | 7818 | Center for Rheumatology | 7954 | 7844 | 2538 | 3660 |
| 520 | 5585 | Twin Cities Spine Center | 7125 | 4964 | 2538 | 3660 |
| 521 | 5144 | Turner Endangered Species Fund | 6450 | 4457 | 2538 | 3660 |
| 522 | 4171 | William Alanson White Institute | 4265 | 3084 | 2538 | 3660 |
| 523 | 7806 | Xenobe Research Institute | 7856 | 7886 | 2538 | 3660 |
| 524 | 6283 | Windber Research Institute | 7684 | 5801 | 2538 | 3660 |
| 525 | 3073 | Water Research Foundation AWWA | 1368 | 1365 | 2538 | 3660 |
| 526 | 7073 | Weight Control and Diabetes Research Center | 7661 | 6239 | 2538 | 3879 |
| 527 | 3622 | Whitman Walker Clinic | 1999 | 1497 | 2538 | 3879 |
| 528 | 5161 | Las Vegas Skin & Cancer Clinics Ltd | 5188 | 3569 | 2538 | 3879 |
| 529 | 7483 | Wesley Neurology Clinic | 7623 | 6979 | 2538 | 3879 |
| 530 | 4080 | Wells National Estuarine Research Reserve | 3410 | 2065 | 2538 | 3879 |
| 531 | 6442 | Western Montana Clinic | 6720 | 5364 | 2538 | 3879 |
| 532 | 5785 | Western Fisheries Research Center | 6895 | 4333 | 2538 | 3879 |
| 533 | 1229 | NOAA National Weather Service | 12 | 18 | 2538 | 3879 |
| 534 | 686 | World Wide Web Consortium | 34 | 1 | 2538 | 3879 |
| 535 | 7503 | Robert J. Dole VA Medical Center Wichita Kansas | 7041 | 7082 | 2538 | 3879 |
| 536 | 4596 | Watson Clinic | 3359 | 2905 | 2538 | 3879 |
| 537 | 6853 | VA Medical Center Washington DC | 4860 | 6177 | 2538 | 3879 |
| 538 | 7609 | VA New Jersey War Related Illness and Injury Study Center | 6279 | 7341 | 2538 | 3879 |
| 539 | 6067 | Warde Medical Laboratory | 4704 | 4979 | 2538 | 3879 |
| 540 | 6941 | Walther Cancer Institute | 8011 | 5705 | 2538 | 3879 |
| 541 | 5025 | Yale-Griffin Prevention Research Center | 6748 | 3234 | 2538 | 3879 |
| 542 | 5387 | Will Rogers Institute | 7233 | 3662 | 2538 | 3879 |
| 543 | 1132 | World Resources Institute | 906 | 72 | 1129 | 3879 |
| 544 | 3388 | Yale Medicine | 1425 | 1229 | 2538 | 3879 |
| 545 | 8138 | Walter Reed Army Institute of Research | 8091 | 8138 | 2538 | 3879 |
| 546 | 7437 | Wound Healing Center | 7385 | 6951 | 2538 | 3879 |
| 547 | 1531 | World Wildlife Fund | 1073 | 39 | 2538 | 3879 |
| 548 | 1915 | Worldwatch Institute | 1801 | 124 | 2538 | 3879 |
| 549 | 2425 | World Policy Institute | 1713 | 350 | 2538 | 3879 |
| 550 | 7311 | VA Medical Center Wilmington | 7074 | 6764 | 2538 | 3879 |
| 551 | 7723 | VA Medical Center Wilkes-Barre Pennsylvania | 6987 | 7484 | 2538 | 3879 |
| 552 | 3261 | Wildlife Center of Virginia | 2454 | 1015 | 2538 | 3879 |
| 553 | 1818 | Woodrow Wilson International Center for Scholars | 357 | 116 | 2538 | 3879 |
| 554 | 7021 | Wood Hudson Cancer Research Laboratory | 7532 | 6201 | 2538 | 3879 |
| 555 | 3948 | Wilderness Medical Society | 4740 | 1785 | 2538 | 3879 |
| 556 | 6530 | Yellowstone Ecological Research Center | 6863 | 5465 | 2538 | 3879 |
| 557 | 4924 | Yukon Kuskokwim Health Corporation | 5636 | 3215 | 2538 | 3879 |
| 558 | 2493 | W K Kellogg Foundation | 1817 | 395 | 2538 | 3879 |
| 559 | 6383 | Western Kansas Agricultural Research Centers | 7655 | 5081 | 2538 | 3879 |
| 560 | 3876 | Yale New Haven Health System | 1136 | 1931 | 2538 | 3879 |
| 561 | 6471 | US Army Medical Research Institute of Infectious Diseases | 7233 | 5322 | 2538 | 3879 |
| 562 | 4461 | Virginia Bioinformatics Institute | 2946 | 4044 | 2249 | 3879 |
| 563 | 2223 | VCA Newark Animal Hospital | 205 | 305 | 2538 | 3879 |
| 564 | 7967 | VHA eHealth University | 7266 | 7920 | 2538 | 3879 |
| 565 | 2804 | US Antarctic Program | 1860 | 626 | 2538 | 3879 |
| 566 | 7481 | US Army Research Institute of Environmental Medicine | 6800 | 7074 | 2538 | 3879 |
| 567 | 4088 | United States Naval Observatory | 403 | 2432 | 2538 | 3879 |
| 568 | 2852 | US Oncology | 3410 | 1651 | 1756 | 3879 |
| 569 | 7776 | Utah Bone & Joint Center | 7851 | 7460 | 2538 | 3879 |
| 570 | 5456 | United Technologies Research Center | 6695 | 6442 | 653 | 3879 |
| 571 | 4565 | Ocular Immunology and Uveitus Foundation | 5188 | 2710 | 2538 | 3879 |
| 572 | 5465 | Venice Hospital | 4154 | 4137 | 2538 | 3879 |
| 573 | 3788 | Versiti (BloodCenter of Wisconsin) | 3570 | 1631 | 2538 | 3879 |
| 574 | 5973 | Veterinary Neurological Center | 5955 | 4718 | 2538 | 3879 |
| 575 | 6015 | US Army Institute of Surgical Research | 5789 | 4788 | 2538 | 3879 |
| 576 | 4836 | University of Pittsburgh Cancer Institute | 6678 | 2983 | 2538 | 3879 |
| 577 | 6527 | Upstate Freshwater Institute | 7775 | 5269 | 2538 | 3879 |
| 578 | 7325 | University Research Alliance | 7330 | 6750 | 2538 | 3879 |
| 579 | 1915 | UnityPoint Health (Trinity Regional Health System) | 531 | 471 | 1980 | 3879 |
| 580 | 4082 | University Health Care System Augusta | 2861 | 2106 | 2538 | 3879 |
| 581 | 7413 | US Army Aeromedical Research Laboratory | 5780 | 7044 | 2538 | 3879 |
| 582 | 7674 | Vaccine Research Institute of San Diego | 7856 | 7279 | 2538 | 3879 |
| 583 | 7820 | VA Midwest Health Care Network VISN 23 | 7030 | 7645 | 2538 | 3879 |
| 584 | 7670 | VA Healthcare VISN 4 | 6238 | 7438 | 2538 | 3879 |
| 585 | 7893 | VA Mid-Atlantic Health Care Network VISN 6 | 7380 | 7786 | 2538 | 3879 |
| 586 | 7798 | VA Sunshine Healthcare Network | 6895 | 7618 | 2538 | 3879 |
| 587 | 7869 | VA MidSouth Healthcare Network VISN 9 | 7266 | 7737 | 2538 | 3879 |
| 588 | 7808 | VA Sierra Pacific Network VISN 21 | 7380 | 7590 | 2538 | 3879 |
| 589 | 7454 | VA Northwest Network VISN 20 | 5603 | 7104 | 2538 | 3879 |
| 590 | 7539 | VA Healthcare Network Upstate New York VISN 2 | 5655 | 7231 | 2538 | 3879 |
| 591 | 4068 | Vermont Institute Natural Science | 4187 | 2014 | 2538 | 3879 |
| 592 | 7930 | VA Healthcare System of Ohio, Indiana and Michigan | 7436 | 7852 | 2538 | 3879 |
| 593 | 7956 | VA Great Lakes Health Care System VISN 12 | 7339 | 7893 | 2538 | 3879 |
| 594 | 8015 | VA Heartland Network VISN 15 | 7696 | 7963 | 2538 | 3879 |
| 595 | 7826 | VA Health Care Network South Central | 7512 | 7605 | 2538 | 3879 |
| 596 | 7998 | VA Rocky Mountain Network | 7861 | 7908 | 2538 | 3879 |
| 597 | 4675 | Houston Advanced Research Center | 4658 | 2933 | 2538 | 3879 |
| 598 | 7988 | Health Care Financing & Economics | 8011 | 7805 | 2538 | 3879 |
| 599 | 2669 | Ascension Healthcare | 523 | 581 | 2538 | 3879 |
| 600 | 3443 | National Resource Center for Health Information Technology | 1689 | 1285 | 2538 | 3879 |
