| 501 | 2614 | Pacific Institute for Studies in Development Environment and Security |  | 2749 | 458 | 2538 | 3879 |
| 502 | 2620 | Minneapolis Medical Research Foundation | | 7193 | 5215 | 2538 | 1351 |
| 503 | 2627 | VA Medical Center Birmingham | | 7086 | 6415 | 2538 | 661 |
| 504 | 2627 | Richard L. Roudebush VA Medical Center Indianapolis Indiana | | 6401 | 6172 | 2538 | 829 |
| 505 | 2633 | Ohio Aerospace Institute | | 6129 | 3105 | 2538 | 2510 |
| 506 | 2651 | Memorial Hermann Northwest Hospital | | 960 | 544 | 2538 | 3879 |
| 507 | 2653 | North Florida/South Georgia Veterans Health System | | 5271 | 5832 | 2538 | 1084 |
| 508 | 2669 | Ascension Healthcare | | 523 | 581 | 2538 | 3879 |
| 509 | 2669 | Point Blue (Point Reyes Bird Observatory) | | 3605 | 1544 | 1434 | 3879 |
| 510 | 2672 | Saskatchewan Research Council |  | 4847 | 2493 | 2538 | 2919 |
| 511 | 2674 | Henry L Stimson Center | | 1735 | 532 | 2538 | 3879 |
| 512 | 2688 | Center for Coastal Environmental Health and Biomolecular Research | | 2749 | 1163 | 2538 | 3509 |
| 513 | 2693 | Exxon Research Engineering | | 1562 | 554 | 2538 | 3879 |
| 514 | 2696 | Retina Foundation of the Southwest | | 6735 | 4215 | 2538 | 2027 |
| 515 | 2701 | Illinois Mathematics and Science Academy | | 1624 | 561 | 2538 | 3879 |
| 516 | 2703 | VA North Texas Health Care System | | 5965 | 5956 | 2538 | 1051 |
| 517 | 2708 | Edison Electric Institute | | 2015 | 558 | 2538 | 3879 |
| 518 | 2718 | International Fertilizer Development Center | | 3708 | 1784 | 2138 | 3660 |
| 519 | 2725 | FPInnovations (Pulp and Paper Research Institute of Canada) | | 2767 | 1584 | 1616 | 3879 |
| 520 | 2741 | Moss Landing Marine Laboratories | | 1440 | 4994 | 1350 | 3034 |
| 521 | 2748 | Canadian Centre for Architecture | | 621 | 645 | 2538 | 3879 |
| 522 | 2752 | Hôpital du Sacre Coeur de Montreal | | 4350 | 3451 | 2538 | 2555 |
| 523 | 2755 | Florida Hospital | | 1889 | 583 | 2538 | 3879 |
| 524 | 2764 | National Capital Poison Center | | 5531 | 499 | 2538 | 3879 |
| 525 | 2770 | Research Institute for Fragrance Materials | | 5948 | 3452 | 2489 | 2782 |
| 526 | 2778 | Coriell Institute for Medical Research | | 647 | 1418 | 2129 | 3879 |
| 527 | 2783 | VA NY Harbor Healthcare System | | 5160 | 6444 | 2538 | 900 |
| 528 | 2792 | National Energy Research Scientific Computing Center | | 1069 | 649 | 2538 | 3879 |
| 529 | 2800 | Children's Hospital Oakland Research Institute | | 4658 | 2021 | 864 | 3879 |
| 530 | 2804 | US Antarctic Program | | 1860 | 626 | 2538 | 3879 |
| 531 | 2805 | Baylor Health Care System | | 3459 | 1889 | 1204 | 3879 |
| 532 | 2808 | Samueli Institute | | 5708 | 3271 | 2538 | 2653 |
| 533 | 2819 | Land Institute | | 5506 | 1043 | 2304 | 3879 |
| 534 | 2825 | US National Agricultural Library | | 60 | 863 | 2538 | 3879 |
| 535 | 2825 | National Child Traumatic Stress Network | | 6079 | 904 | 2538 | 3660 |
| 536 | 2848 | Marine Mammal Center | | 2903 | 640 | 2538 | 3879 |
| 537 | 2852 | US Oncology | | 3410 | 1651 | 1756 | 3879 |
| 538 | 2859 | South Texas Veterans Health Care System | | 5447 | 6963 | 2538 | 649 |
| 539 | 2861 | American Iron and Steel Institute | | 2951 | 650 | 2538 | 3879 |
| 540 | 2866 | Jesse Brown VA Medical Center | | 6910 | 6300 | 2538 | 981 |
| 541 | 2882 | International Center for Research on Women | | 3473 | 652 | 2538 | 3879 |
| 542 | 2890 | VA Salt Lake City Health Care System | | 5798 | 6562 | 2538 | 904 |
| 543 | 2892 | Conservation Fund | | 2182 | 701 | 2538 | 3879 |
| 544 | 2898 | Social Sciences and Humanities Research Council / Conseil de Recherches en Sciences Humaines | | 2298 | 703 | 2538 | 3879 |
| 545 | 2900 | PeaceHealth Southwest Medical Center (Southwest Washington Medical Center) | | 1077 | 745 | 2538 | 3879 |
| 546 | 2904 | Bd Biosciences Immunocytometry Systems | | 272 | 833 | 2538 | 3879 |
| 547 | 2906 | Atmospheric Environmental Research Inc | | 4067 | 1565 | 1938 | 3879 |
| 548 | 2913 | Trident Technical College | | 1899 | 717 | 2538 | 3879 |
| 549 | 2921 | Archbold Biological Station | | 2452 | 2345 | 2093 | 3660 |
| 550 | 2925 | Concord Hospital | | 3934 | 1950 | 2538 | 3316 |
| 551 | 2930 | Kessler Foundation | | 3920 | 1831 | 1630 | 3879 |
| 552 | 2934 | Institute of Transportation Engineers | | 1957 | 725 | 2538 | 3879 |
| 553 | 2934 | Saint Joseph Mercy Health System | | 2224 | 2092 | 2254 | 3660 |
| 554 | 2939 | American Sports Medicine Institute | | 7204 | 1905 | 2538 | 3252 |
| 555 | 2944 | James A. Haley Veterans' Hospital | | 6132 | 5682 | 2538 | 1534 |
| 556 | 2947 | Fox Chase Cancer Center | | 2191 | 726 | 2538 | 3879 |
| 557 | 2951 | Helen Keller International | | 5160 | 1084 | 2538 | 3660 |
| 558 | 2955 | SSM Health Care | | 1978 | 754 | 2538 | 3879 |
| 559 | 2958 | ECRI Institute | | 2275 | 742 | 2538 | 3879 |
| 560 | 2963 | Mount Wilson Observatory | | 7193 | 969 | 2538 | 3660 |
| 561 | 2963 | Saint Louis Children's Hospital | | 2090 | 757 | 2538 | 3879 |
| 562 | 2971 | Rogosin Institute | | 6501 | 4064 | 2538 | 2408 |
| 563 | 2979 | Audubon Nature Institute | | 4426 | 698 | 2538 | 3879 |
| 564 | 2979 | William S. Middleton Memorial Veterans Hospital | | 6082 | 6464 | 2538 | 1007 |
| 565 | 2984 | Mount Washington Observatory | | 5489 | 662 | 2538 | 3879 |
| 566 | 2994 | Environmental Law Institute | | 1610 | 797 | 2538 | 3879 |
| 567 | 2994 | Ethics and Public Policy Center | | 2178 | 778 | 2538 | 3879 |
| 568 | 3002 | David and Lucile Packard Foundation | | 2535 | 773 | 2538 | 3879 |
| 569 | 3007 | VA Long Beach Healthcare System | | 6758 | 5932 | 2538 | 1380 |
| 570 | 3007 | Essential Health (Duluth Clinic Health System) | | 2162 | 1396 | 2311 | 3879 |
| 571 | 3014 | Florida Orthopaedic Institute | | 5007 | 3188 | 2538 | 2919 |
| 572 | 3024 | VA Medical Center Providence Rhode Island | | 5798 | 6551 | 2538 | 1015 |
| 573 | 3032 | Alliance for Aging Research | | 4154 | 1191 | 2538 | 3660 |
| 574 | 3039 | Central Arkansas Veterans Healthcare System | | 6820 | 6165 | 2538 | 1236 |
| 575 | 3046 | American Geosciences Institute (American Geological Institute) | | 919 | 874 | 2538 | 3879 |
| 576 | 3046 | Property and Environment Research Center | | 3062 | 790 | 2538 | 3879 |
| 577 | 3054 | Gulf Maine Research Institute | | 3434 | 1488 | 2224 | 3879 |
| 578 | 3068 | ETR Associates | | 2224 | 1305 | 2538 | 3660 |
| 579 | 3068 | National Tropical Botanical Garden | | 3600 | 786 | 2538 | 3879 |
| 580 | 3073 | Memphis VA Medical Center | | 6768 | 6347 | 2538 | 1153 |
| 581 | 3073 | Water Research Foundation AWWA | | 1368 | 1365 | 2538 | 3660 |
| 582 | 3078 | Catholic Health Association | | 1398 | 870 | 2538 | 3879 |
| 583 | 3078 | Westchester County Medical Center | | 2923 | 1664 | 2538 | 3509 |
| 584 | 3084 | Texas Back Institute | | 5062 | 2585 | 2538 | 3191 |
| 585 | 3086 | Long Term Ecological Research Network | | 792 | 913 | 2538 | 3879 |
| 586 | 3087 | Good Samaritan Hospital los Angeles | | 6412 | 2266 | 2538 | 3252 |
| 587 | 3097 | Hunter Holmes McGuire Richmond VA Medical Center | | 5336 | 6326 | 2538 | 1292 |
| 588 | 3103 | Center for Applied Genomics | | 6620 | 5452 | 2538 | 1813 |
| 589 | 3107 | Ducks Unlimited Canada | | 2046 | 881 | 2538 | 3879 |
| 590 | 3108 | Jefferson University Hospitals (Thomas Jefferson University Hospital) | | 2134 | 879 | 2538 | 3879 |
| 591 | 3110 | Oregon Institute of Science and Medicine | | 6107 | 741 | 2538 | 3879 |
| 592 | 3116 | National Center for Ecological Analysis and Synthesis | | 1484 | 2718 | 1102 | 3879 |
| 593 | 3118 | Hines VA Hospital | | 5952 | 6506 | 2538 | 1136 |
| 594 | 3125 | James J. Peters VA Medical Center Bronx NY | | 6779 | 6927 | 2538 | 839 |
| 595 | 3125 | National Childhood Cancer Foundation | | 3486 | 850 | 2538 | 3879 |
| 596 | 3134 | Mclean Hospital | | 3119 | 871 | 2538 | 3879 |
| 597 | 3140 | VA Medical Center White River Junction Vermont | | 6971 | 5896 | 2538 | 1545 |
| 598 | 3142 | VA Medical Center St Louis Missouri | | 6327 | 6383 | 2538 | 1246 |
| 599 | 3143 | Institute of Mathematical Statistics | | 2223 | 907 | 2538 | 3879 |
| 600 | 3149 | VA Northern California Health Care System | | 6151 | 6356 | 2538 | 1300 |
