| 501 | 3724 | Children's Hospital of Michigan |  | 2870 | 1589 | 2538 | 3879 |
| 502 | 1546 | CHI Saint Luke's Episcopal Health System Texas | | 3092 | 1591 | 2538 | 1813 |
| 503 | 3807 | James S McDonnell Foundation | | 4768 | 1596 | 2538 | 3879 |
| 504 | 1184 | National Institute of Dental and Craniofacial Research | | 3202 | 1609 | 2538 | 834 |
| 505 | 3755 | Warren Clinic | | 3114 | 1610 | 2538 | 3879 |
| 506 | 3771 | Cooper Aerobics Cooper Clinic | | 3529 | 1613 | 2538 | 3879 |
| 507 | 1428 | Jackson Health System (Memorial Hospital) | | 2723 | 1617 | 2538 | 1518 |
| 508 | 835 | Regenstrief Institute | | 4634 | 1621 | 1270 | 1074 |
| 509 | 3965 | Herman & Walter Samuelson Children's Hospital at Sinai | | 7157 | 1622 | 2538 | 3879 |
| 510 | 3716 | Carnegie Observatories | | 2007 | 1623 | 2538 | 3879 |
| 511 | 3774 | National Center for Posttraumatic Stress Disorder | | 3434 | 1626 | 2538 | 3879 |
| 512 | 3788 | Versiti (BloodCenter of Wisconsin) | | 3570 | 1631 | 2538 | 3879 |
| 513 | 3799 | International Society for Heart & Lung Transplantation | | 3736 | 1641 | 2538 | 3879 |
| 514 | 3765 | Wellesley Central Hospital |  | 2891 | 1645 | 2538 | 3879 |
| 515 | 2852 | US Oncology | | 3410 | 1651 | 1756 | 3879 |
| 516 | 3906 | Northeast Midwest Institute | | 5943 | 1653 | 2538 | 3879 |
| 517 | 3078 | Westchester County Medical Center | | 2923 | 1664 | 2538 | 3509 |
| 518 | 3811 | Foundation for Biomedical Research | | 3640 | 1667 | 2538 | 3879 |
| 519 | 1780 | Newton Wellesley Hospital | | 4154 | 1668 | 2538 | 2141 |
| 520 | 1287 | Women & Infants Hospital Rhode Island | | 3342 | 1690 | 2538 | 1028 |
| 521 | 685 | Oklahoma Medical Research Foundation | | 2917 | 1694 | 607 | 865 |
| 522 | 3838 | National Minority AIDS Council | | 3934 | 1697 | 2538 | 3879 |
| 523 | 3813 | Deaconess Health System | | 3193 | 1698 | 2538 | 3879 |
| 524 | 1809 | National Center for Genome Resources | | 6456 | 1711 | 2090 | 2867 |
| 525 | 1144 | Winthrop University Hospital | | 2648 | 1716 | 2346 | 1267 |
| 526 | 692 | Institut de Cardiologie de Montréal | | 3705 | 1720 | 1753 | 486 |
| 527 | 3821 | (1)Hôpital de Montreal pour Enfants | | 2696 | 1725 | 2538 | 3879 |
| 528 | 3891 | Fannie and John Hertz Foundation | | 4386 | 1727 | 2538 | 3879 |
| 529 | 3830 | Potomac Institute for Policy Studies | | 3185 | 1728 | 2538 | 3879 |
| 530 | 276 | National Institute of Allergy and Infectious Diseases | | 1997 | 1729 | 119 | 97 |
| 531 | 1126 | Saint Joseph's Healthcare Hamilton | | 2651 | 1731 | 2538 | 671 |
| 532 | 1034 | National Institute of Aerospace | | 3576 | 1736 | 1587 | 1526 |
| 533 | 1023 | Institut de Recherches Cliniques de Montreal | | 3029 | 1737 | 361 | 2002 |
| 534 | 3869 | Huntington Memorial Hospital | | 3399 | 1751 | 2538 | 3879 |
| 535 | 1638 | Boys Town National Research Hospital | | 4088 | 1762 | 2538 | 1832 |
| 536 | 3870 | Chemical Institute of Canada | | 3197 | 1764 | 2538 | 3879 |
| 537 | 3924 | Hennepin County Medical Center | | 4409 | 1768 | 2538 | 3879 |
| 538 | 3905 | Saint Joseph's Hospital Health Center | | 3899 | 1771 | 2538 | 3879 |
| 539 | 3873 | Duke Clinical Research Institute | | 3229 | 1775 | 2538 | 3879 |
| 540 | 1279 | Bermuda Institute of Ocean Sciences |  | 3544 | 1779 | 1761 | 2027 |
| 541 | 2718 | International Fertilizer Development Center | | 3708 | 1784 | 2138 | 3660 |
| 542 | 3948 | Wilderness Medical Society | | 4740 | 1785 | 2538 | 3879 |
| 543 | 1557 | San Francisco Estuary Institute | | 2030 | 1786 | 1921 | 2653 |
| 544 | 1940 | Smith Kettlewell Eye Research Institute | | 4328 | 1791 | 1930 | 3140 |
| 545 | 2504 | Edison Welding Institute | | 3838 | 1796 | 2164 | 3509 |
| 546 | 3947 | Southern California Orthopedic Institute | | 4328 | 1808 | 2538 | 3879 |
| 547 | 3892 | Bernheim Arboretum and Research Forest | | 3148 | 1811 | 2538 | 3879 |
| 548 | 3880 | Catholic Health Initiatives | | 2917 | 1812 | 2538 | 3879 |
| 549 | 1799 | Radiation Therapy Oncology Group | | 3525 | 1818 | 2538 | 2104 |
| 550 | 946 | Texas Biomedical Research Institute (Southwest Foundation for Biomedical Research) | | 4605 | 1825 | 1477 | 1188 |
| 551 | 3193 | Centre de Recherche Appliquee en Technologies de L’Information | | 2354 | 1827 | 2190 | 3879 |
| 552 | 2930 | Kessler Foundation | | 3920 | 1831 | 1630 | 3879 |
| 553 | 3948 | Colorado Health Foundation | | 4022 | 1834 | 2538 | 3879 |
| 554 | 579 | Los Angeles Biomedical Research Institute | | 4731 | 1853 | 662 | 469 |
| 555 | 3985 | National Center for Voice and Speech | | 4532 | 1854 | 2538 | 3879 |
| 556 | 1277 | Boyce Thompson Institute for Plant Research | | 4011 | 1855 | 2538 | 895 |
| 557 | 4003 | Egg Nutrition Center | | 4860 | 1861 | 2538 | 3879 |
| 558 | 337 | US Naval Research Laboratory | | 1377 | 1870 | 60 | 183 |
| 559 | 4074 | Asphalt Institute | | 5995 | 1879 | 2538 | 3879 |
| 560 | 3896 | Southeast Regional Climate Center | | 2032 | 1884 | 2538 | 3879 |
| 561 | 2805 | Baylor Health Care System | | 3459 | 1889 | 1204 | 3879 |
| 562 | 4108 | Family Research Institute | | 6450 | 1891 | 2538 | 3879 |
| 563 | 4048 | Truman Medical Centers | | 5160 | 1898 | 2538 | 3879 |
| 564 | 1466 | Hebrew Rehabilitation Center for Aged | | 4616 | 1903 | 2538 | 1326 |
| 565 | 2939 | American Sports Medicine Institute | | 7204 | 1905 | 2538 | 3252 |
| 566 | 3909 | Mcleod Health | | 2062 | 1910 | 2538 | 3879 |
| 567 | 4053 | BioDiversity Research Institute | | 5123 | 1912 | 2538 | 3879 |
| 568 | 1480 | Stroud Water Research Center | | 3588 | 1920 | 1664 | 2487 |
| 569 | 3876 | Yale New Haven Health System | | 1136 | 1931 | 2538 | 3879 |
| 570 | 4042 | Pankey Institute | | 4658 | 1933 | 2538 | 3879 |
| 571 | 3995 | Henry M Jackson Foundation for the Advancement of Military Medicine | | 3513 | 1941 | 2538 | 3879 |
| 572 | 2064 | New York State Institute for Basic Research in Developmental Disabilities | | 3144 | 1943 | 2538 | 2487 |
| 573 | 3958 | MEDNAX Phoenix Perinatal Associates | | 2469 | 1948 | 2538 | 3879 |
| 574 | 2925 | Concord Hospital | | 3934 | 1950 | 2538 | 3316 |
| 575 | 3351 | Angiogenesis Foundation | | 6189 | 1980 | 2538 | 3509 |
| 576 | 1656 | Louisiana Universities Marine Consortium | | 4805 | 1982 | 1684 | 2733 |
| 577 | 1560 | Southern Research Institute | | 4216 | 1986 | 1447 | 2696 |
| 578 | 3528 | Mount Auburn Hospital | | 4122 | 1988 | 2538 | 3660 |
| 579 | 1874 | Cancer Care Ontario | | 1675 | 2003 | 2538 | 2188 |
| 580 | 878 | University of Arizona Health Sciences | | 1144 | 2008 | 2538 | 250 |
| 581 | 652 | Robarts Research Institute | | 3618 | 2010 | 381 | 673 |
| 582 | 4068 | Vermont Institute Natural Science | | 4187 | 2014 | 2538 | 3879 |
| 583 | 1524 | Stollery Children's Hospital | | 4122 | 2016 | 2538 | 1438 |
| 584 | 4113 | Tellus Institute | | 5144 | 2017 | 2538 | 3879 |
| 585 | 2800 | Children's Hospital Oakland Research Institute | | 4658 | 2021 | 864 | 3879 |
| 586 | 2504 | British Columbia Cancer Research Centre | | 3848 | 2036 | 156 | 3879 |
| 587 | 4019 | Center for the Collaborative Classroom | | 2569 | 2043 | 2538 | 3879 |
| 588 | 2355 | National Center for Supercomputing Applications | | 1034 | 2048 | 2538 | 2919 |
| 589 | 1479 | Sun Microsystems Laboratories | | 4893 | 2049 | 2538 | 1227 |
| 590 | 4243 | Kentucky Science Center Louisville | | 6716 | 2050 | 2538 | 3879 |
| 591 | 1044 | Forsyth Institute | | 5766 | 2061 | 1428 | 1288 |
| 592 | 4099 | Northwest Hospital & Medical Center | | 4022 | 2064 | 2538 | 3879 |
| 593 | 4080 | Wells National Estuarine Research Reserve | | 3410 | 2065 | 2538 | 3879 |
| 594 | 4161 | Powder Coating Institute | | 5175 | 2067 | 2538 | 3879 |
| 595 | 2537 | Samuel Lunenfeld Research Institute | | 3410 | 2087 | 187 | 3879 |
| 596 | 4187 | Eskenazi Health Sidney & Lois Eskenazi Hospital Indianapolis | | 5377 | 2088 | 2538 | 3879 |
| 597 | 2934 | Saint Joseph Mercy Health System | | 2224 | 2092 | 2254 | 3660 |
| 598 | 4082 | University Health Care System Augusta | | 2861 | 2106 | 2538 | 3879 |
| 599 | 4149 | North-South Institute | | 4166 | 2109 | 2538 | 3879 |
| 600 | 4262 | Aspen Center for Physics | | 6529 | 2115 | 2538 | 3879 |
