| 1501 | 5836 | Tuscaloosa VA Medical Center |  | 6638 | 6613 | 2538 | 3252 |
| 1502 | 5585 | Twin Cities Spine Center | | 7125 | 4964 | 2538 | 3660 |
| 1503 | 3271 | UAB Medicine | | 1544 | 1085 | 2538 | 3879 |
| 1504 | 7689 | Unidad de Microanálisis y Métodos Físicos en Química Orgánica |  | 5780 | 8103 | 2538 | 3252 |
| 1505 | 1072 | United Network for Organ Sharing Organ Donation and Transplantation | | 2999 | 427 | 2538 | 1950 |
| 1506 | 4088 | United States Naval Observatory | | 403 | 2432 | 2538 | 3879 |
| 1507 | 5456 | United Technologies Research Center | | 6695 | 6442 | 653 | 3879 |
| 1508 | 1915 | UnityPoint Health (Trinity Regional Health System) | | 531 | 471 | 1980 | 3879 |
| 1509 | 173 | Universities Space Research Association | | 192 | 105 | 1441 | 572 |
| 1510 | 150 | University Corporation for Atmospheric Research | | 143 | 47 | 54 | 1620 |
| 1511 | 4082 | University Health Care System Augusta | | 2861 | 2106 | 2538 | 3879 |
| 1512 | 80 | University Health Network |  | 1751 | 476 | 53 | 38 |
| 1513 | 180 | University Hospitals Health System Cleveland | | 802 | 459 | 443 | 195 |
| 1514 | 1398 | University of Arizona Cancer Center | | 5144 | 2320 | 2538 | 911 |
| 1515 | 878 | University of Arizona Health Sciences | | 1144 | 2008 | 2538 | 250 |
| 1516 | 1426 | University of Colorado Health (Memorial Health System) | | 1316 | 704 | 2538 | 2487 |
| 1517 | 639 | University of Iowa Hospitals and Clinics | | 5919 | 1176 | 2538 | 143 |
| 1518 | 6339 | University of Louisville Department of Surgery | | 6546 | 5227 | 2538 | 3879 |
| 1519 | 278 | University of Maryland Center for Environmental Science | | 776 | 352 | 152 | 878 |
| 1520 | 407 | University of Miami Health System | | 1016 | 791 | 2538 | 86 |
| 1521 | 1072 | University of Oklahoma Medical Center | | 1581 | 1011 | 2538 | 1153 |
| 1522 | 127 | University of Pennsylvania Health System | | 636 | 182 | 2538 | 20 |
| 1523 | 4836 | University of Pittsburgh Cancer Institute | | 6678 | 2983 | 2538 | 3879 |
| 1524 | 186 | University of Pittsburgh Medical Center | | 599 | 170 | 2538 | 65 |
| 1525 | 1316 | University of South Alabama Health System Mitchell Cancer Institute | | 3021 | 1532 | 2538 | 1236 |
| 1526 | 55 | University of Texas Health Science Center at San Antonio | | 366 | 167 | 30 | 117 |
| 1527 | 24 | University of Texas M.D. Anderson Cancer Center | | 518 | 111 | 4 | 24 |
| 1528 | 34 | University of Texas Southwestern Medical Center | | 492 | 163 | 7 | 36 |
| 1529 | 4464 | University of the West Indies Seismic Research Centre |  | 5271 | 2544 | 2538 | 3879 |
| 1530 | 850 | University of Vermont Medical Center | | 1644 | 1181 | 1479 | 1581 |
| 1531 | 6227 | University of Washington College of Forest Resources | | 7396 | 4910 | 2538 | 3879 |
| 1532 | 7325 | University Research Alliance | | 7330 | 6750 | 2538 | 3879 |
| 1533 | 6527 | Upstate Freshwater Institute | | 7775 | 5269 | 2538 | 3879 |
| 1534 | 299 | Urban Institute | | 543 | 84 | 1236 | 1689 |
| 1535 | 6123 | UroPath Diagnostics | | 7696 | 6041 | 2538 | 3509 |
| 1536 | 2804 | US Antarctic Program | | 1860 | 626 | 2538 | 3879 |
| 1537 | 7413 | US Army Aeromedical Research Laboratory | | 5780 | 7044 | 2538 | 3879 |
| 1538 | 6801 | US Army Engineer Institute for Water Resources | | 3404 | 6176 | 2538 | 3879 |
| 1539 | 6015 | US Army Institute of Surgical Research | | 5789 | 4788 | 2538 | 3879 |
| 1540 | 6459 | US Army Medical Department Center & School | | 4402 | 5580 | 2538 | 3879 |
| 1541 | 6471 | US Army Medical Research Institute of Infectious Diseases | | 7233 | 5322 | 2538 | 3879 |
| 1542 | 7481 | US Army Research Institute of Environmental Medicine | | 6800 | 7074 | 2538 | 3879 |
| 1543 | 4823 | US Army Research Laboratory | | 1494 | 3377 | 2538 | 3879 |
| 1544 | 5675 | US Army War College at Carlisle Barracks | | 6027 | 4265 | 2538 | 3879 |
| 1545 | 7 | US Department of Veterans Affairs | | 53 | 15 | 56 | 7 |
| 1546 | 17 | US Environmental Protection Agency | | 19 | 8 | 83 | 151 |
| 1547 | 13 | US Geological Survey | | 25 | 12 | 32 | 66 |
| 1548 | 2825 | US National Agricultural Library | | 60 | 863 | 2538 | 3879 |
| 1549 | 91 | US National Science Foundation | | 71 | 24 | 232 | 860 |
| 1550 | 7279 | US Naval Observatory Flagstaff Station | | 7570 | 6630 | 2538 | 3879 |
| 1551 | 337 | US Naval Research Laboratory | | 1377 | 1870 | 60 | 183 |
| 1552 | 2852 | US Oncology | | 3410 | 1651 | 1756 | 3879 |
| 1553 | 3347 | USDA Forest Service Northern Research Station | | 505 | 1252 | 2538 | 3879 |
| 1554 | 5119 | Usfs North Central Research Station | | 3486 | 3640 | 2538 | 3879 |
| 1555 | 4931 | USGS Fort Collins Science Center | | 5719 | 5998 | 2538 | 3140 |
| 1556 | 7593 | USGS Leetown Science Center | | 7544 | 7185 | 2538 | 3879 |
| 1557 | 7076 | USGS National Fisheries Research Center Great Lakes | | 5512 | 6477 | 2538 | 3879 |
| 1558 | 6021 | USGS National Wildlife Health Center | | 6156 | 4769 | 2538 | 3879 |
| 1559 | 7776 | Utah Bone & Joint Center | | 7851 | 7460 | 2538 | 3879 |
| 1560 | 6740 | Utah State University Research Foundation | | 6966 | 7806 | 2538 | 3034 |
| 1561 | 2236 | VA Boston Healthcare System | | 5535 | 5616 | 2538 | 728 |
| 1562 | 6572 | VA Butler Healthcare | | 5476 | 6449 | 2538 | 3660 |
| 1563 | 5855 | VA Caribbean Healthcare System | | 6688 | 7320 | 2538 | 2867 |
| 1564 | 7914 | VA Center for Health Equity Research and Promotion | | 6954 | 7852 | 2538 | 3879 |
| 1565 | 6004 | VA Central California Health Care System | | 6486 | 6836 | 2538 | 3252 |
| 1566 | 6289 | VA Central Iowa Health Care System | | 6584 | 6436 | 2538 | 3509 |
| 1567 | 7503 | VA Central Western Massachusetts Healthcare System | | 7403 | 7041 | 2538 | 3879 |
| 1568 | 2379 | VA Connecticut Healthcare System | | 6472 | 6215 | 2538 | 543 |
| 1569 | 7572 | VA Desert Pacific Healthcare Network | | 7638 | 7142 | 2538 | 3879 |
| 1570 | 7956 | VA Great Lakes Health Care System VISN 12 | | 7339 | 7893 | 2538 | 3879 |
| 1571 | 1728 | VA Greater Los Angeles Healthcare System | | 5520 | 5100 | 2538 | 356 |
| 1572 | 7098 | VA Gulf Coast Veterans Health Care System | | 6667 | 6419 | 2538 | 3879 |
| 1573 | 7826 | VA Health Care Network South Central | | 7512 | 7605 | 2538 | 3879 |
| 1574 | 7711 | VA Health Care System Amarillo | | 7275 | 7446 | 2538 | 3879 |
| 1575 | 7173 | VA Health Care System Black Hills | | 5902 | 6622 | 2538 | 3879 |
| 1576 | 3372 | VA Health Care System New Mexico | | 6638 | 6143 | 2538 | 1701 |
| 1577 | 7386 | VA Health Care System Northern Arizona | | 7086 | 6885 | 2538 | 3879 |
| 1578 | 7528 | VA Health Care System West Texas | | 7300 | 7098 | 2538 | 3879 |
| 1579 | 6805 | VA Health Services Research & Development | | 1307 | 6320 | 2538 | 3879 |
| 1580 | 7539 | VA Healthcare Network Upstate New York VISN 2 | | 5655 | 7231 | 2538 | 3879 |
| 1581 | 2071 | VA Healthcare System Ann Arbor | | 6688 | 6005 | 2538 | 352 |
| 1582 | 4291 | VA Healthcare System Bay Pines | | 5560 | 6047 | 2538 | 2696 |
| 1583 | 7930 | VA Healthcare System of Ohio, Indiana and Michigan | | 7436 | 7852 | 2538 | 3879 |
| 1584 | 7670 | VA Healthcare VISN 4 | | 6238 | 7438 | 2538 | 3879 |
| 1585 | 7979 | VA Heart of Texas Health Care Network | | 7676 | 7908 | 2538 | 3879 |
| 1586 | 8015 | VA Heartland Network VISN 15 | | 7696 | 7963 | 2538 | 3879 |
| 1587 | 7935 | VA HSR&D/RR&D Rehabilitation Outcomes Research Center | | 8011 | 7674 | 2538 | 3879 |
| 1588 | 6862 | VA Illiana Health Care System Danville Illinois | | 6820 | 6771 | 2538 | 3660 |
| 1589 | 4313 | VA Loma Linda Healthcare System | | 6758 | 6453 | 2538 | 2408 |
| 1590 | 3007 | VA Long Beach Healthcare System | | 6758 | 5932 | 2538 | 1380 |
| 1591 | 7418 | VA Maine Healthcare System | | 7030 | 6964 | 2538 | 3879 |
| 1592 | 2437 | VA Maryland Health Care System | | 4953 | 5837 | 2538 | 873 |
| 1593 | 6169 | VA Medical Center Asheville North Carolina | | 6872 | 6268 | 2538 | 3509 |
| 1594 | 7306 | VA Medical Center Battle Creek Michigan | | 6971 | 6767 | 2538 | 3879 |
| 1595 | 7634 | VA Medical Center Beckley West Virginia | | 7339 | 7303 | 2538 | 3879 |
| 1596 | 3573 | VA Medical Center Bedford Massachusetts | | 6926 | 7024 | 2538 | 1246 |
| 1597 | 2627 | VA Medical Center Birmingham | | 7086 | 6415 | 2538 | 661 |
| 1598 | 7489 | VA Medical Center Chillicothe VA Healthcare System of Ohio | | 6660 | 7090 | 2538 | 3879 |
| 1599 | 3327 | VA Medical Center Cincinnati | | 6252 | 6525 | 2538 | 1409 |
| 1600 | 7588 | VA Medical Center Dublin Georgia | | 7204 | 7212 | 2538 | 3879 |
