| 501 | 5217 | Perry Institute for Marine Science |  | 6273 | 4562 | 2538 | 3660 |
| 502 | 3073 | Water Research Foundation AWWA | | 1368 | 1365 | 2538 | 3660 |
| 503 | 6391 | Hudson Valley VA Health Care System | | 6596 | 6094 | 2538 | 3660 |
| 504 | 4945 | Sonoran Spine Center | | 5442 | 4259 | 2538 | 3660 |
| 505 | 7242 | Oscar G. Johnson VA Medical Center | | 6295 | 7315 | 2538 | 3660 |
| 506 | 2951 | Helen Keller International | | 5160 | 1084 | 2538 | 3660 |
| 507 | 3320 | Allergy Research Foundation | | 5144 | 1560 | 2538 | 3660 |
| 508 | 5585 | Twin Cities Spine Center | | 7125 | 4964 | 2538 | 3660 |
| 509 | 4074 | National Centers for Environmental Prediction | | 208 | 3423 | 2538 | 3660 |
| 510 | 6916 | VA Medical Center Fargo North Dakota | | 6322 | 6904 | 2538 | 3660 |
| 511 | 3528 | Mount Auburn Hospital | | 4122 | 1988 | 2538 | 3660 |
| 512 | 7527 | Cancer Alliance of Nebraska | | 7314 | 7566 | 2538 | 3660 |
| 513 | 6862 | VA Illiana Health Care System Danville Illinois | | 6820 | 6771 | 2538 | 3660 |
| 514 | 6572 | VA Butler Healthcare | | 5476 | 6449 | 2538 | 3660 |
| 515 | 2934 | Saint Joseph Mercy Health System | | 2224 | 2092 | 2254 | 3660 |
| 516 | 6884 | South Bend Medical Foundation | | 6893 | 6807 | 2538 | 3660 |
| 517 | 3562 | Prince William Sound Science Center | | 2923 | 3706 | 2063 | 3660 |
| 518 | 7212 | Aleda E. Lutz VA Medical Center Saginaw Michigan | | 5928 | 7291 | 2538 | 3660 |
| 519 | 2825 | National Child Traumatic Stress Network | | 6079 | 904 | 2538 | 3660 |
| 520 | 2921 | Archbold Biological Station | | 2452 | 2345 | 2093 | 3660 |
| 521 | 3782 | Southcentral Foundation | | 2553 | 2552 | 2538 | 3660 |
| 522 | 2963 | Mount Wilson Observatory | | 7193 | 969 | 2538 | 3660 |
| 523 | 7806 | Xenobe Research Institute | | 7856 | 7886 | 2538 | 3660 |
| 524 | 2181 | Clay Mathematics Institute | | 2648 | 414 | 2538 | 3660 |
| 525 | 1664 | American Petroleum Institute | | 953 | 147 | 2538 | 3660 |
| 526 | 4545 | Genetic Information Research Institute | | 1910 | 2930 | 2538 | 3879 |
| 527 | 3046 | American Geosciences Institute (American Geological Institute) | | 919 | 874 | 2538 | 3879 |
| 528 | 5188 | Oceanic Institute | | 7271 | 3367 | 2538 | 3879 |
| 529 | 6077 | Silverstein Institute Ear Research Foundation | | 6456 | 4820 | 2538 | 3879 |
| 530 | 6095 | Outcomes Research Institute | | 4719 | 5011 | 2538 | 3879 |
| 531 | 1536 | NORC University of Chicago | | 1581 | 290 | 1070 | 3879 |
| 532 | 7483 | Colon and Rectal Clinic of Orlando | | 7712 | 6958 | 2538 | 3879 |
| 533 | 2493 | W K Kellogg Foundation | | 1817 | 395 | 2538 | 3879 |
| 534 | 3207 | National Academy of Social Insurance | | 3056 | 932 | 2538 | 3879 |
| 535 | 6530 | Yellowstone Ecological Research Center | | 6863 | 5465 | 2538 | 3879 |
| 536 | 5119 | Usfs North Central Research Station | | 3486 | 3640 | 2538 | 3879 |
| 537 | 6981 | Central Alabama Veterans Health Care System | | 6758 | 6252 | 2538 | 3879 |
| 538 | 4565 | Ocular Immunology and Uveitus Foundation | | 5188 | 2710 | 2538 | 3879 |
| 539 | 2651 | Memorial Hermann Northwest Hospital | | 960 | 544 | 2538 | 3879 |
| 540 | 7998 | VA Rocky Mountain Network | | 7861 | 7908 | 2538 | 3879 |
| 541 | 3981 | Mallinckrodt Institute of Radiology | | 4468 | 4515 | 778 | 3879 |
| 542 | 3483 | Biosphere 2 Center | | 6317 | 1132 | 2538 | 3879 |
| 543 | 5182 | Colorado Neurological Institute | | 6598 | 3452 | 2538 | 3879 |
| 544 | 6969 | Lincoln Medical and Mental Health Center | | 7155 | 6193 | 2538 | 3879 |
| 545 | 6981 | Tanabe Research Laboratories | | 7740 | 6059 | 2538 | 3879 |
| 546 | 6859 | Southern Colorado Clinic | | 7518 | 5920 | 2538 | 3879 |
| 547 | 2955 | SSM Health Care | | 1978 | 754 | 2538 | 3879 |
| 548 | 1897 | Hoover Institution | | 377 | 145 | 2538 | 3879 |
| 549 | 4384 | VA Polytrauma System of Care | | 7193 | 2205 | 2538 | 3879 |
| 550 | 4797 | Gulf Coast Veterinary Specialists | | 6920 | 2902 | 2538 | 3879 |
| 551 | 6442 | Desert Orthopaedic Center | | 6407 | 5402 | 2538 | 3879 |
| 552 | 6760 | VA Office of Information & Technology | | 633 | 6338 | 2538 | 3879 |
| 553 | 1835 | Education Development Center Inc | | 942 | 318 | 2157 | 3879 |
| 554 | 7503 | Robert J. Dole VA Medical Center Wichita Kansas | | 7041 | 7082 | 2538 | 3879 |
| 555 | 8138 | Walter Reed Army Institute of Research | | 8091 | 8138 | 2538 | 3879 |
| 556 | 7137 | Chronic Disease Research Group | | 7389 | 6417 | 2538 | 3879 |
| 557 | 4088 | United States Naval Observatory | | 403 | 2432 | 2538 | 3879 |
| 558 | 3578 | Canada France Hawaii Telescope Corporation | | 1535 | 1472 | 2538 | 3879 |
| 559 | 3788 | Versiti (BloodCenter of Wisconsin) | | 3570 | 1631 | 2538 | 3879 |
| 560 | 7061 | Black Hills Center for American Indian Health | | 7696 | 6220 | 2538 | 3879 |
| 561 | 7637 | Lake Champlain Gynecologic Oncology | | 7676 | 7254 | 2538 | 3879 |
| 562 | 7320 | Tomah VA Medical Center | | 6364 | 6847 | 2538 | 3879 |
| 563 | 724 | Library of Congress | | 9 | 5 | 2394 | 3879 |
| 564 | 1901 | Internet2 | | 462 | 143 | 2538 | 3879 |
| 565 | 4313 | Steadman Philippon Research Institute | | 6061 | 4150 | 1843 | 3879 |
| 566 | 6801 | US Army Engineer Institute for Water Resources | | 3404 | 6176 | 2538 | 3879 |
| 567 | 5144 | Rocky Mountain Poison and Drug Center | | 6836 | 3384 | 2538 | 3879 |
| 568 | 2132 | Robert Wood Johnson Medical School | | 1615 | 1287 | 271 | 3879 |
| 569 | 6358 | Hydrologic Research Center | | 7368 | 5134 | 2538 | 3879 |
| 570 | 6888 | Presbyterian Ear Institute | | 7617 | 5950 | 2538 | 3879 |
| 571 | 4525 | Queen's Medical Center Honolulu Hawaii | | 6809 | 2486 | 2538 | 3879 |
| 572 | 3634 | Gas Technology Institute | | 5524 | 1341 | 2538 | 3879 |
| 573 | 5028 | VA Office of Research & Development | | 560 | 3820 | 2538 | 3879 |
| 574 | 7979 | VA Heart of Texas Health Care Network | | 7676 | 7908 | 2538 | 3879 |
| 575 | 2614 | Pacific Institute for Studies in Development Environment and Security | | 2749 | 458 | 2538 | 3879 |
| 576 | 1580 | Exploratorium Museum of Science Art and Human Perception | | 975 | 51 | 2538 | 3879 |
| 577 | 3046 | Property and Environment Research Center | | 3062 | 790 | 2538 | 3879 |
| 578 | 6718 | Florida Institute of Phosphate Research | | 5794 | 5888 | 2538 | 3879 |
| 579 | 6304 | Olin Neuropsychiatry Research Center | | 7137 | 5079 | 2538 | 3879 |
| 580 | 1249 | Defense Advanced Research Projects Agency | | 3048 | 80 | 1468 | 3879 |
| 581 | 4099 | Northwest Hospital & Medical Center | | 4022 | 2064 | 2538 | 3879 |
| 582 | 8022 | Center for Management of Complex Chronic Care | | 7630 | 7977 | 2538 | 3879 |
| 583 | 6853 | VA Medical Center Washington DC | | 4860 | 6177 | 2538 | 3879 |
| 584 | 2596 | Mathematical Sciences Research Institute | | 610 | 523 | 2538 | 3879 |
| 585 | 6045 | Campbell Foundation | | 7374 | 4643 | 2538 | 3879 |
| 586 | 6015 | US Army Institute of Surgical Research | | 5789 | 4788 | 2538 | 3879 |
| 587 | 3134 | Mclean Hospital | | 3119 | 871 | 2538 | 3879 |
| 588 | 3295 | Barnes Jewish Hospital | | 1868 | 1102 | 2538 | 3879 |
| 589 | 4434 | Saint Vincent Hospital | | 6218 | 3125 | 2469 | 3879 |
| 590 | 3171 | Mason Research Institute | | 4122 | 2382 | 1484 | 3879 |
| 591 | 1386 | Hudson Institute | | 1689 | 269 | 301 | 3879 |
| 592 | 8001 | Seattle Epidemiologic Research and Information Center | | 7634 | 7953 | 2538 | 3879 |
| 593 | 6332 | Providence Medical Group (South Carolina Heart Center) | | 6832 | 5185 | 2538 | 3879 |
| 594 | 4739 | Gynecology Oncology Group | | 6269 | 2901 | 2538 | 3879 |
| 595 | 7792 | Center for Arson Research | | 7767 | 7509 | 2538 | 3879 |
| 596 | 3295 | Ohio Supercomputer Center | | 2823 | 1052 | 2538 | 3879 |
| 597 | 972 | Environmental Systems Research Institute | | 115 | 40 | 1289 | 3879 |
| 598 | 6825 | Trinity Regional Hospital Fort Dodge | | 7475 | 5883 | 2538 | 3879 |
| 599 | 3722 | Food and Drug Law Institute | | 4634 | 1489 | 2538 | 3879 |
| 600 | 1546 | Center for Strategic and International Studies | | 447 | 81 | 2501 | 3879 |
