| 901 | 270 | Southwest Research Institute |  | 2112 | 405 | 986 | 421 |
| 902 | 708 | Space Science Institute | | 4041 | 1317 | 1604 | 801 |
| 903 | 4254 | Space Studies Institute | | 6295 | 2120 | 2538 | 3879 |
| 904 | 83 | Space Telescope Science Institute | | 158 | 95 | 189 | 252 |
| 905 | 672 | Spectrum Health | | 1210 | 669 | 2183 | 1153 |
| 906 | 7217 | Spine Institute | | 7359 | 6556 | 2538 | 3879 |
| 907 | 6405 | SpineCare Medical Group | | 7564 | 5166 | 2538 | 3879 |
| 908 | 5973 | SpineNevada | | 6800 | 4632 | 2538 | 3879 |
| 909 | 146 | SRI International | | 713 | 142 | 134 | 644 |
| 910 | 2955 | SSM Health Care | | 1978 | 754 | 2538 | 3879 |
| 911 | 5987 | St. Cloud VA Medical Center | | 5491 | 6468 | 2538 | 3410 |
| 912 | 129 | Stanford Linear Accelerator Center | | 160 | 884 | 41 | 87 |
| 913 | 4433 | Steadman Clinic | | 6560 | 2376 | 2538 | 3879 |
| 914 | 4313 | Steadman Philippon Research Institute | | 6061 | 4150 | 1843 | 3879 |
| 915 | 2533 | Steward Health Care (Caritas Christi Health Care) | | 1243 | 1440 | 1492 | 3879 |
| 916 | 7422 | Stough Clinic | | 7864 | 6784 | 2538 | 3879 |
| 917 | 646 | Stowers Institute for Medical Research | | 2316 | 1311 | 508 | 1065 |
| 918 | 1480 | Stroud Water Research Center | | 3588 | 1920 | 1664 | 2487 |
| 919 | 862 | Subaru Telescope | | 2174 | 1004 | 2281 | 1236 |
| 920 | 938 | Summer Institute of Linguistics | | 331 | 53 | 495 | 3879 |
| 921 | 3763 | Sun Health Research Institute | | 5976 | 3191 | 2538 | 3410 |
| 922 | 1479 | Sun Microsystems Laboratories | | 4893 | 2049 | 2538 | 1227 |
| 923 | 1611 | Sutter Health | | 673 | 264 | 1823 | 3879 |
| 924 | 582 | Swedish Medical Center | | 636 | 598 | 1214 | 1596 |
| 925 | 6206 | Synexus Clinic (Radiant Research) | | 6299 | 5043 | 2538 | 3879 |
| 926 | 4346 | Syracuse VA Medical Center VA Healthcare Network Upstate New York | | 6510 | 6520 | 2538 | 2408 |
| 927 | 4305 | Tall Timbers Research Station | | 3213 | 2454 | 2538 | 3879 |
| 928 | 1583 | Tampa General Hospital | | 1689 | 1270 | 2538 | 2173 |
| 929 | 6981 | Tanabe Research Laboratories | | 7740 | 6059 | 2538 | 3879 |
| 930 | 4612 | Taos Orthopaedic Institute | | 5547 | 6074 | 2538 | 2919 |
| 931 | 4113 | Tellus Institute | | 5144 | 2017 | 2538 | 3879 |
| 932 | 4751 | Tennessee Orthopaedic Alliance | | 6222 | 2919 | 2538 | 3879 |
| 933 | 2540 | Tennessee Valley Healthcare System | | 6180 | 6658 | 2538 | 489 |
| 934 | 4493 | Terasaki Foundation Laboratory | | 6074 | 6056 | 2538 | 2822 |
| 935 | 4836 | Texas AgriLife Research | | 6869 | 2961 | 2538 | 3879 |
| 936 | 3084 | Texas Back Institute | | 5062 | 2585 | 2538 | 3191 |
| 937 | 946 | Texas Biomedical Research Institute (Southwest Foundation for Biomedical Research) | | 4605 | 1825 | 1477 | 1188 |
| 938 | 203 | Texas Children's Hospital | | 970 | 490 | 828 | 199 |
| 939 | 7079 | Texas Endosurgery Institute | | 7716 | 7454 | 2538 | 3410 |
| 940 | 841 | Texas Heart Institute | | 3021 | 658 | 1875 | 1934 |
| 941 | 991 | Texas Medical Center | | 485 | 114 | 29 | 3879 |
| 942 | 3711 | Texas Oncology | | 2881 | 1574 | 2538 | 3879 |
| 943 | 2132 | Texas Transportation Institute | | 1468 | 801 | 1620 | 3879 |
| 944 | 6175 | Textile Research Institute | | 6568 | 4965 | 2538 | 3879 |
| 945 | 225 | Thomas Jefferson Lab National Accelerator Facility | | 353 | 253 | 131 | 897 |
| 946 | 7320 | Tomah VA Medical Center | | 6364 | 6847 | 2538 | 3879 |
| 947 | 2468 | Torrey Pines Institute for Molecular Studies | | 7297 | 4656 | 2103 | 2266 |
| 948 | 5276 | Town Center Orthopaedic Associates | | 6794 | 3558 | 2538 | 3879 |
| 949 | 470 | Translational Genomics Research Institute | | 3197 | 1005 | 307 | 814 |
| 950 | 1907 | Transportation Research Board | | 32 | 185 | 2538 | 3879 |
| 951 | 2408 | Treatment Research Institute Philadelphia | | 7461 | 2841 | 2538 | 2290 |
| 952 | 7548 | Tri-County Family Medicine | | 7832 | 7047 | 2538 | 3879 |
| 953 | 4003 | Triangle Universities Nuclear Laboratory | | 2037 | 6791 | 2538 | 2104 |
| 954 | 2913 | Trident Technical College | | 1899 | 717 | 2538 | 3879 |
| 955 | 6825 | Trinity Regional Hospital Fort Dodge | | 7475 | 5883 | 2538 | 3879 |
| 956 | 7082 | Tripler Army Medical Center | | 4983 | 6516 | 2538 | 3879 |
| 957 | 3322 | Trudeau Institute | | 7684 | 3826 | 2538 | 2782 |
| 958 | 4048 | Truman Medical Centers | | 5160 | 1898 | 2538 | 3879 |
| 959 | 5704 | Tucson Orthopaedic Institute | | 5175 | 4402 | 2538 | 3879 |
| 960 | 207 | Tufts Medical Center | | 2144 | 677 | 242 | 186 |
| 961 | 5144 | Turner Endangered Species Fund | | 6450 | 4457 | 2538 | 3660 |
| 962 | 5836 | Tuscaloosa VA Medical Center | | 6638 | 6613 | 2538 | 3252 |
| 963 | 5585 | Twin Cities Spine Center | | 7125 | 4964 | 2538 | 3660 |
| 964 | 3271 | UAB Medicine | | 1544 | 1085 | 2538 | 3879 |
| 965 | 1072 | United Network for Organ Sharing Organ Donation and Transplantation | | 2999 | 427 | 2538 | 1950 |
| 966 | 4088 | United States Naval Observatory | | 403 | 2432 | 2538 | 3879 |
| 967 | 5456 | United Technologies Research Center | | 6695 | 6442 | 653 | 3879 |
| 968 | 1915 | UnityPoint Health (Trinity Regional Health System) | | 531 | 471 | 1980 | 3879 |
| 969 | 173 | Universities Space Research Association | | 192 | 105 | 1441 | 572 |
| 970 | 150 | University Corporation for Atmospheric Research | | 143 | 47 | 54 | 1620 |
| 971 | 4082 | University Health Care System Augusta | | 2861 | 2106 | 2538 | 3879 |
| 972 | 180 | University Hospitals Health System Cleveland | | 802 | 459 | 443 | 195 |
| 973 | 1398 | University of Arizona Cancer Center | | 5144 | 2320 | 2538 | 911 |
| 974 | 878 | University of Arizona Health Sciences | | 1144 | 2008 | 2538 | 250 |
| 975 | 1426 | University of Colorado Health (Memorial Health System) | | 1316 | 704 | 2538 | 2487 |
| 976 | 639 | University of Iowa Hospitals and Clinics | | 5919 | 1176 | 2538 | 143 |
| 977 | 6339 | University of Louisville Department of Surgery | | 6546 | 5227 | 2538 | 3879 |
| 978 | 278 | University of Maryland Center for Environmental Science | | 776 | 352 | 152 | 878 |
| 979 | 407 | University of Miami Health System | | 1016 | 791 | 2538 | 86 |
| 980 | 1072 | University of Oklahoma Medical Center | | 1581 | 1011 | 2538 | 1153 |
| 981 | 127 | University of Pennsylvania Health System | | 636 | 182 | 2538 | 20 |
| 982 | 4836 | University of Pittsburgh Cancer Institute | | 6678 | 2983 | 2538 | 3879 |
| 983 | 186 | University of Pittsburgh Medical Center | | 599 | 170 | 2538 | 65 |
| 984 | 1316 | University of South Alabama Health System Mitchell Cancer Institute | | 3021 | 1532 | 2538 | 1236 |
| 985 | 55 | University of Texas Health Science Center at San Antonio | | 366 | 167 | 30 | 117 |
| 986 | 24 | University of Texas M.D. Anderson Cancer Center | | 518 | 111 | 4 | 24 |
| 987 | 34 | University of Texas Southwestern Medical Center | | 492 | 163 | 7 | 36 |
| 988 | 850 | University of Vermont Medical Center | | 1644 | 1181 | 1479 | 1581 |
| 989 | 6227 | University of Washington College of Forest Resources | | 7396 | 4910 | 2538 | 3879 |
| 990 | 7325 | University Research Alliance | | 7330 | 6750 | 2538 | 3879 |
| 991 | 6527 | Upstate Freshwater Institute | | 7775 | 5269 | 2538 | 3879 |
| 992 | 299 | Urban Institute | | 543 | 84 | 1236 | 1689 |
| 993 | 6123 | UroPath Diagnostics | | 7696 | 6041 | 2538 | 3509 |
| 994 | 2804 | US Antarctic Program | | 1860 | 626 | 2538 | 3879 |
| 995 | 7413 | US Army Aeromedical Research Laboratory | | 5780 | 7044 | 2538 | 3879 |
| 996 | 6801 | US Army Engineer Institute for Water Resources | | 3404 | 6176 | 2538 | 3879 |
| 997 | 6015 | US Army Institute of Surgical Research | | 5789 | 4788 | 2538 | 3879 |
| 998 | 6459 | US Army Medical Department Center & School | | 4402 | 5580 | 2538 | 3879 |
| 999 | 6471 | US Army Medical Research Institute of Infectious Diseases | | 7233 | 5322 | 2538 | 3879 |
| 1000 | 7481 | US Army Research Institute of Environmental Medicine | | 6800 | 7074 | 2538 | 3879 |
