| 201 | 186 | University of Pittsburgh Medical Center |  | 599 | 170 | 2538 | 65 |
| 202 | 4836 | University of Pittsburgh Cancer Institute | | 6678 | 2983 | 2538 | 3879 |
| 203 | 127 | University of Pennsylvania Health System | | 636 | 182 | 2538 | 20 |
| 204 | 1072 | University of Oklahoma Medical Center | | 1581 | 1011 | 2538 | 1153 |
| 205 | 407 | University of Miami Health System | | 1016 | 791 | 2538 | 86 |
| 206 | 278 | University of Maryland Center for Environmental Science | | 776 | 352 | 152 | 878 |
| 207 | 6339 | University of Louisville Department of Surgery | | 6546 | 5227 | 2538 | 3879 |
| 208 | 639 | University of Iowa Hospitals and Clinics | | 5919 | 1176 | 2538 | 143 |
| 209 | 1426 | University of Colorado Health (Memorial Health System) | | 1316 | 704 | 2538 | 2487 |
| 210 | 878 | University of Arizona Health Sciences | | 1144 | 2008 | 2538 | 250 |
| 211 | 1398 | University of Arizona Cancer Center | | 5144 | 2320 | 2538 | 911 |
| 212 | 180 | University Hospitals Health System Cleveland | | 802 | 459 | 443 | 195 |
| 213 | 80 | University Health Network |  | 1751 | 476 | 53 | 38 |
| 214 | 4082 | University Health Care System Augusta | | 2861 | 2106 | 2538 | 3879 |
| 215 | 150 | University Corporation for Atmospheric Research | | 143 | 47 | 54 | 1620 |
| 216 | 173 | Universities Space Research Association | | 192 | 105 | 1441 | 572 |
| 217 | 1915 | UnityPoint Health (Trinity Regional Health System) | | 531 | 471 | 1980 | 3879 |
| 218 | 5456 | United Technologies Research Center | | 6695 | 6442 | 653 | 3879 |
| 219 | 4088 | United States Naval Observatory | | 403 | 2432 | 2538 | 3879 |
| 220 | 1072 | United Network for Organ Sharing Organ Donation and Transplantation | | 2999 | 427 | 2538 | 1950 |
| 221 | 7689 | Unidad de Microanálisis y Métodos Físicos en Química Orgánica |  | 5780 | 8103 | 2538 | 3252 |
| 222 | 3271 | UAB Medicine | | 1544 | 1085 | 2538 | 3879 |
| 223 | 5585 | Twin Cities Spine Center | | 7125 | 4964 | 2538 | 3660 |
| 224 | 5836 | Tuscaloosa VA Medical Center | | 6638 | 6613 | 2538 | 3252 |
| 225 | 5144 | Turner Endangered Species Fund | | 6450 | 4457 | 2538 | 3660 |
| 226 | 207 | Tufts Medical Center | | 2144 | 677 | 242 | 186 |
| 227 | 5704 | Tucson Orthopaedic Institute | | 5175 | 4402 | 2538 | 3879 |
| 228 | 4048 | Truman Medical Centers | | 5160 | 1898 | 2538 | 3879 |
| 229 | 3322 | Trudeau Institute | | 7684 | 3826 | 2538 | 2782 |
| 230 | 7082 | Tripler Army Medical Center | | 4983 | 6516 | 2538 | 3879 |
| 231 | 6825 | Trinity Regional Hospital Fort Dodge | | 7475 | 5883 | 2538 | 3879 |
| 232 | 4171 | Trillium Health Partners | | 4029 | 2150 | 2538 | 3879 |
| 233 | 2913 | Trident Technical College | | 1899 | 717 | 2538 | 3879 |
| 234 | 4003 | Triangle Universities Nuclear Laboratory | | 2037 | 6791 | 2538 | 2104 |
| 235 | 7548 | Tri-County Family Medicine | | 7832 | 7047 | 2538 | 3879 |
| 236 | 2408 | Treatment Research Institute Philadelphia | | 7461 | 2841 | 2538 | 2290 |
| 237 | 1907 | Transportation Research Board | | 32 | 185 | 2538 | 3879 |
| 238 | 470 | Translational Genomics Research Institute | | 3197 | 1005 | 307 | 814 |
| 239 | 5276 | Town Center Orthopaedic Associates | | 6794 | 3558 | 2538 | 3879 |
| 240 | 2468 | Torrey Pines Institute for Molecular Studies | | 7297 | 4656 | 2103 | 2266 |
| 241 | 7320 | Tomah VA Medical Center | | 6364 | 6847 | 2538 | 3879 |
| 242 | 7605 | Thrombosis & Atherosclerosis Research Institute (Henderson Research Centre) | | 7461 | 7242 | 2538 | 3879 |
| 243 | 225 | Thomas Jefferson Lab National Accelerator Facility | | 353 | 253 | 131 | 897 |
| 244 | 5562 | Third World Centre for Water Management |  | 5555 | 4147 | 2538 | 3879 |
| 245 | 5295 | Thames Valley Children's Centre | | 5048 | 3761 | 2538 | 3879 |
| 246 | 6175 | Textile Research Institute | | 6568 | 4965 | 2538 | 3879 |
| 247 | 2132 | Texas Transportation Institute | | 1468 | 801 | 1620 | 3879 |
| 248 | 3711 | Texas Oncology | | 2881 | 1574 | 2538 | 3879 |
| 249 | 991 | Texas Medical Center | | 485 | 114 | 29 | 3879 |
| 250 | 841 | Texas Heart Institute | | 3021 | 658 | 1875 | 1934 |
| 251 | 7079 | Texas Endosurgery Institute | | 7716 | 7454 | 2538 | 3410 |
| 252 | 203 | Texas Children's Hospital | | 970 | 490 | 828 | 199 |
| 253 | 946 | Texas Biomedical Research Institute (Southwest Foundation for Biomedical Research) | | 4605 | 1825 | 1477 | 1188 |
| 254 | 3084 | Texas Back Institute | | 5062 | 2585 | 2538 | 3191 |
| 255 | 4836 | Texas AgriLife Research | | 6869 | 2961 | 2538 | 3879 |
| 256 | 4493 | Terasaki Foundation Laboratory | | 6074 | 6056 | 2538 | 2822 |
| 257 | 2540 | Tennessee Valley Healthcare System | | 6180 | 6658 | 2538 | 489 |
| 258 | 4751 | Tennessee Orthopaedic Alliance | | 6222 | 2919 | 2538 | 3879 |
| 259 | 4113 | Tellus Institute | | 5144 | 2017 | 2538 | 3879 |
| 260 | 4612 | Taos Orthopaedic Institute | | 5547 | 6074 | 2538 | 2919 |
| 261 | 6981 | Tanabe Research Laboratories | | 7740 | 6059 | 2538 | 3879 |
| 262 | 1583 | Tampa General Hospital | | 1689 | 1270 | 2538 | 2173 |
| 263 | 4305 | Tall Timbers Research Station | | 3213 | 2454 | 2538 | 3879 |
| 264 | 4346 | Syracuse VA Medical Center VA Healthcare Network Upstate New York | | 6510 | 6520 | 2538 | 2408 |
| 265 | 6206 | Synexus Clinic (Radiant Research) | | 6299 | 5043 | 2538 | 3879 |
| 266 | 582 | Swedish Medical Center | | 636 | 598 | 1214 | 1596 |
| 267 | 1611 | Sutter Health | | 673 | 264 | 1823 | 3879 |
| 268 | 136 | Sunnybrook Health Sciences Centre | | 601 | 530 | 113 | 142 |
| 269 | 1479 | Sun Microsystems Laboratories | | 4893 | 2049 | 2538 | 1227 |
| 270 | 3763 | Sun Health Research Institute | | 5976 | 3191 | 2538 | 3410 |
| 271 | 938 | Summer Institute of Linguistics | | 331 | 53 | 495 | 3879 |
| 272 | 862 | Subaru Telescope | | 2174 | 1004 | 2281 | 1236 |
| 273 | 1480 | Stroud Water Research Center | | 3588 | 1920 | 1664 | 2487 |
| 274 | 646 | Stowers Institute for Medical Research | | 2316 | 1311 | 508 | 1065 |
| 275 | 7422 | Stough Clinic | | 7864 | 6784 | 2538 | 3879 |
| 276 | 1524 | Stollery Children's Hospital | | 4122 | 2016 | 2538 | 1438 |
| 277 | 2533 | Steward Health Care (Caritas Christi Health Care) | | 1243 | 1440 | 1492 | 3879 |
| 278 | 4313 | Steadman Philippon Research Institute | | 6061 | 4150 | 1843 | 3879 |
| 279 | 4433 | Steadman Clinic | | 6560 | 2376 | 2538 | 3879 |
| 280 | 264 | Statistics Canada | | 67 | 75 | 1152 | 1740 |
| 281 | 129 | Stanford Linear Accelerator Center | | 160 | 884 | 41 | 87 |
| 282 | 5987 | St. Cloud VA Medical Center | | 5491 | 6468 | 2538 | 3410 |
| 283 | 2955 | SSM Health Care | | 1978 | 754 | 2538 | 3879 |
| 284 | 146 | SRI International | | 713 | 142 | 134 | 644 |
| 285 | 5973 | SpineNevada | | 6800 | 4632 | 2538 | 3879 |
| 286 | 6405 | SpineCare Medical Group | | 7564 | 5166 | 2538 | 3879 |
| 287 | 7217 | Spine Institute | | 7359 | 6556 | 2538 | 3879 |
| 288 | 672 | Spectrum Health | | 1210 | 669 | 2183 | 1153 |
| 289 | 83 | Space Telescope Science Institute | | 158 | 95 | 189 | 252 |
| 290 | 4254 | Space Studies Institute | | 6295 | 2120 | 2538 | 3879 |
| 291 | 708 | Space Science Institute | | 4041 | 1317 | 1604 | 801 |
| 292 | 270 | Southwest Research Institute | | 2112 | 405 | 986 | 421 |
| 293 | 3589 | Southwest Oncology Group | | 2734 | 2175 | 2538 | 3660 |
| 294 | 5806 | Southern University Agricultural Research Center | | 6820 | 4387 | 2538 | 3879 |
| 295 | 3985 | Southern Research Station USDA Forest Service | | 629 | 2167 | 2538 | 3879 |
| 296 | 1560 | Southern Research Institute | | 4216 | 1986 | 1447 | 2696 |
| 297 | 6859 | Southern Colorado Clinic | | 7518 | 5920 | 2538 | 3879 |
| 298 | 3947 | Southern California Orthopedic Institute | | 4328 | 1808 | 2538 | 3879 |
| 299 | 3284 | Southern California Coastal Water Research Project | | 2418 | 2988 | 1131 | 3879 |
| 300 | 4323 | Southern Arizona VA Health Care System | | 6538 | 6363 | 2538 | 2487 |
