| 500 (1947) | Northeastern Ohio Universities College of Medicine | USA |  |
| 500 (1947) | University of Maine, Orono | USA | |
| 503 (1951) | Memorial University of Newfoundland | CAN | |
| 503 (1951) | Partners HealthCare System | USA |  |
| 505 (1957) | Duquesne University | USA | |
| 505 (1957) | National High Magnetic Field Laboratory | USA |  |
| 507 (1961) | University of North Texas | USA | |
| 508 (1980) | Walter Reed National Military Medical Center | USA | |
| 509 (1989) | University of Minnesota, Duluth | USA | |
| 510 (1996) | Southern Methodist University | USA | |
| 510 (1996) | University of Alberta Hospital | CAN | |
| 512 (2003) | Morehouse School of Medicine | USA | |
| 513 (2006) | Oakland University | USA | |
| 514 (2029) | The Catholic University of America | USA | |
| 515 (2035) | Amherst College | USA | |
| 516 (2056) | University of the Sciences in Philadelphia | USA | |
| 517 (2064) | New Mexico State University | USA | |
| 518 (2070) | Florida Atlantic University | USA | |
| 518 (2070) | Florida Institute of Technology | USA | |
| 520 (2073) | University of Oregon | USA | |
| 521 (2083) | Marquette University | USA | |
| 522 (2098) | James J. Peters VA Medical Center | USA | |
| 522 (2098) | Naval Air Systems Command | USA | |
| 524 (2110) | Stevens Institute of Technology | USA | |
| 524 (2110) | University of Alabama, Tuscaloosa | USA | |
| 526 (2114) | Western University of Health Sciences | USA | |
| 527 (2116) | Queen Elizabeth II Health Sciences Centre | CAN | |
| 528 (2120) | Hartford Hospital | USA | |
| 528 (2120) | Middlebury College | USA | |
| 530 (2133) | Arkansas Children's Hospital | USA | |
| 530 (2133) | Science Applications International Corporation | USA |  |
| 530 (2133) | University of Maryland Medical Center | USA | |
| 533 (2139) | York University | CAN | |
| 534 (2162) | Marshall University | USA | |
| 535 (2165) | East Tennessee State University | USA | |
| 536 (2170) | Northrop Grumman Corporation | USA | |
| 537 (2189) | Children's Mercy Hospital | USA | |
| 537 (2189) | South Dakota School of Mines and Technology | USA | |
| 539 (2216) | Northern Kentucky University | USA | |
| 539 (2216) | University of Nebraska, Omaha | USA | |
| 541 (2221) | Douglas Mental Health University Institute | CAN | |
| 542 (2230) | Rady Children's Hospital-San Diego | USA | |
| 543 (2236) | Denver Health Medical Center | USA | |
| 544 (2243) | Glenn Research Center | USA | |
| 545 (2261) | NASA Stennis Space Center | USA | |
| 546 (2285) | Detroit Medical Center | USA | |
| 547 (2314) | Cleveland State University | USA | |
| 548 (2334) | Woods Hole Oceanographic Institution | USA |  |
| 549 (2344) | University of Massachusetts, Boston | USA | |
| 550 (2350) | Brock University | CAN | |
| 551 (2359) | Kingston General Hospital | CAN | |
| 552 (2363) | California Polytechnic State University, San Luis Obispo | USA | |
| 553 (2367) | Institute for Advanced Study | USA | |
| 553 (2367) | Prairie View A&M University | USA | |
| 555 (2370) | Midwestern University | USA | |
| 555 (2370) | University of New Brunswick | CAN | |
| 557 (2391) | BJC HealthCare | USA | |
| 557 (2391) | NASA Ames Research Center | USA | |
| 559 (2395) | University of North Dakota | USA | |
| 560 (2401) | NASA Langley Research Center | USA | |
| 561 (2411) | Intermountain Healthcare | USA | |
| 562 (2420) | San Francisco State University | USA | |
| 563 (2422) | Ecole de Technologie Superieure | CAN | |
| 563 (2422) | Syracuse University | USA | |
| 565 (2432) | Northern Arizona University | USA | |
| 566 (2434) | Rothman Institute | USA | |
| 567 (2444) | University of Ontario Institute of Technology | CAN | |
| 568 (2459) | California State Polytechnic University, Pomona | USA | |
| 569 (2463) | University of Missouri, Saint Louis | USA | |
| 570 (2488) | Central Michigan University | USA | |
| 570 (2488) | West Chester University of Pennsylvania | USA | |
| 572 (2502) | Texas Christian University | USA | |
| 573 (2509) | IWK Health Centre | CAN | |
| 574 (2511) | Winthrop-University Hospital | USA | |
| 575 (2513) | Baylor University | USA | |
| 576 (2520) | Women and Infants Hospital of Rhode Island | USA | |
| 577 (2524) | Kent State University | USA | |
| 578 (2530) | University of Louisiana, Lafayette | USA | |
| 579 (2537) | Electric Power Research Institute | USA | |
| 580 (2542) | City University of New York, Queens College | USA | |
| 581 (2545) | California State University, Los Angeles | USA | |
| 582 (2547) | University of Wyoming | USA | |
| 583 (2562) | Franklin & Marshall College | USA | |
| 583 (2562) | Idaho National Laboratory | USA | |
| 583 (2562) | Old Dominion University | USA | |
| 583 (2562) | St. Joseph's Healthcare Hamilton | CAN | |
| 587 (2568) | San Jose State University | USA | |
| 588 (2576) | Saint John's University | USA | |
| 589 (2583) | Eastern Michigan University | USA | |
| 589 (2583) | Southwest Research Institute | USA | |
| 591 (2588) | Monterey Bay Aquarium Research Institute | USA | |
| 592 (2594) | Bowling Green State University | USA | |
| 593 (2606) | Alberta Children's Hospital | CAN | |
| 593 (2606) | BC Children's Hospital and Sunny Hill Health Centre for Children Vancouver | CAN | |
| 593 (2606) | University of Lethbridge | CAN | |
| 596 (2616) | Williams College | USA | |
| 597 (2620) | Northern Illinois University | USA | |
| 598 (2630) | College of William and Mary | USA | |
| 599 (2642) | Tennessee Technological University | USA | |
| 599 (2642) | University of Arkansas, Little Rock | USA | |
| 601 (2647) | University of South Florida-Saint Petersburg | USA | |
| 602 (2650) | Savannah River National Laboratory | USA | |
| 603 (2656) | Natural Resources Canada | CAN | |
| 604 (2663) | Thomas Jefferson National Accelerator Facility | USA | |
| 605 (2674) | Group Health Cooperative | USA | |
| 605 (2674) | Nova Southeastern University, Estados Unidos | USA | |
| 605 (2674) | University of California, Merced | USA | |
| 608 (2695) | University of Prince Edward Island | CAN | |
| 609 (2704) | State University of New York, College of Environmental Science and Forestry | USA | |
| 610 (2716) | University of New Hampshire | USA | |
| 611 (2722) | Western Michigan University | USA | |
| 612 (2749) | University of Denver | USA | |
| 613 (2760) | University of Massachusetts, Dartmouth | USA | |
| 613 (2760) | University of St. Thomas | USA | |
| 615 (2767) | University of Texas, Pan American | USA | |
| 615 (2767) | University of Windsor | CAN | |
| 617 (2771) | Children's Healthcare of Atlanta | USA | |
| 617 (2771) | Trinity University | USA | |
| 619 (2788) | Lakehead University | CAN | |
| 620 (2797) | Geisinger Medical System | USA | |
| 621 (2802) | University of Tulsa | USA | |
| 622 (2821) | Laurentian University | CAN | |
| 622 (2821) | Wilfrid Laurier University | CAN | |
| 624 (2825) | Milwaukee VA Medical Center | USA | |
| 625 (2832) | University of Maryland, Center for Environmental Science | USA | |
| 626 (2852) | Children's Medical Center Dallas | USA | |
| 627 (2856) | Naval Postgraduate School | USA | |
| 628 (2864) | University of San Francisco | USA | |
| 628 (2864) | University of Wisconsin, Eau Claire | USA | |
| 630 (2879) | Jackson State University | USA | |
| 631 (2887) | California State University, Fresno | USA | |
| 631 (2887) | Yale New Haven Health System | USA | |
| 633 (2898) | National Oceanic and Atmospheric Administration | USA | |
| 634 (2907) | University of Moncton | CAN | |
| 634 (2907) | University of Northern British Columbia | CAN | |
| 636 (2922) | James Madison University | USA | |
| 637 (2932) | NASA Goddard Space Flight Center | USA | |
| 638 (2940) | St. Joseph's Health Care London | CAN | |
| 639 (2945) | California State University, Sacramento | USA | |
| 639 (2945) | Rehabilitation Institute of Chicago | USA | |
| 641 (2979) | Royal Military College of Canada | CAN | |
| 641 (2979) | University of Nevada-Las Vegas | USA | |
| 643 (2985) | Montclair State University | USA | |
| 644 (2991) | New Mexico Institute of Mining and Technology | USA | |
| 645 (3009) | Towson University | USA | |
| 646 (3015) | United States Geological Survey | USA | |
| 647 (3020) | Montreal School of Higher Commercial Studies | CAN | |
| 648 (3035) | Long Island University | USA | |
| 648 (3035) | Villanova University | USA | |
| 650 (3044) | Tuskegee University | USA | |
| 651 (3057) | Haverford College in Pennsylvania | USA | |
| 651 (3057) | MetroHealth System | USA | |
| 651 (3057) | Rowan University | USA | |
| 654 (3078) | US National Science Foundation | USA | |
| 655 (3084) | Saint Cloud State University | USA | |
| 656 (3087) | University of Montana, Missoula | USA | |
| 657 (3094) | Adelphi University | USA | |
| 657 (3094) | University of Wisconsin, Oshkosh | USA | |
| 659 (3120) | NASA Johnson Space Center | USA | |
| 660 (3138) | Western Illinois University, Macomb | USA | |
| 661 (3157) | Grand Valley State University | USA | |
| 661 (3157) | SLAC National Accelerator Laboratory | USA | |
| 661 (3157) | United States Military Academy at West Point | USA | |
| 664 (3162) | Lafayette College | USA | |
| 665 (3179) | University of Alabama, Huntsville | USA | |
| 666 (3188) | Norfolk State University | USA | |
| 666 (3188) | Texas State University, San Marcos | USA | |
| 668 (3195) | Acadia University | CAN | |
| 668 (3195) | Widener University | USA | |
| 670 (3223) | Indiana State University | USA | |
| 671 (3227) | California State University, Chico | USA | |
| 672 (3243) | Idaho State University | USA | |
| 672 (3243) | University of North Florida | USA | |
| 674 (3252) | Cambridge Health Alliance | USA | |
| 675 (3264) | University of San Diego | USA | |
| 676 (3270) | DePaul University | USA | |
| 677 (3284) | Drake University | USA | |
| 678 (3287) | Lamar University | USA | |
| 679 (3316) | Harvard Pilgrim Health Care | USA | |
| 679 (3316) | The College of New Jersey | USA | |
| 681 (3330) | Alberta Health Services | CAN | |
| 682 (3356) | Foothills Medical Centre | CAN | |
| 683 (3366) | Wesleyan University, Middletown | USA | |
| 684 (3377) | Seton Hall University | USA | |
| 684 (3377) | University of North Carolina, Greensboro | USA | |
| 686 (3385) | Baystate Health System | USA | |
| 686 (3385) | Bowdoin College | USA | |
| 686 (3385) | Loyola Marymount University | USA | |
| 686 (3385) | Loyola University Maryland | USA | |
| 686 (3385) | Wichita State University | USA | |
| 691 (3396) | Gonzaga University | USA | |
| 691 (3396) | University of North Carolina, Wilmington | USA | |
| 693 (3416) | University of Alaska, Fairbanks | USA | |
| 694 (3419) | Indiana University/Purdue University at Fort Wayne | USA | |
| 695 (3426) | Institute for Clinical Evaluative Sciences | CAN | |
| 696 (3446) | Maimonides Medical Center | USA | |
| 697 (3451) | Barnard College | USA | |
| 698 (3455) | General Atomics | USA | |
| 699 (3462) | California State University, East Bay | USA | |
| 699 (3462) | Regenstrief Institute | USA | |
| 701 (3473) | University of Alaska, Anchorage | USA | |
| 702 (3491) | Miriam Hospital | USA | |
| 703 (3507) | Hofstra University | USA | |
| 704 (3514) | Rotman Research Institute | CAN | |
| 704 (3514) | St. Francis Xavier University | CAN | |
| 704 (3514) | Texas A&M University, Corpus Christi | USA | |
| 707 (3524) | NASA Kennedy Space Center | USA | |
| 708 (3533) | Joint Institute for Laboratory Astrophysics | USA | |
| 708 (3533) | Southern University, Baton Rouge | USA | |
| 710 (3562) | Illinois State University | USA | |
| 711 (3567) | Morgan State University | USA | |
| 711 (3567) | Pace University | USA | |
| 711 (3567) | TRIUMF - National Laboratory for Particle and Nuclear Physics | CAN | |
| 714 (3572) | Science System and Applications, Inc | USA | |
| 714 (3572) | Western Kentucky University | USA | |
| 716 (3581) | City University of New York, Lehman College | USA | |
| 717 (3588) | Appalachian State University | USA | |
| 718 (3591) | University of Regina | CAN | |
| 719 (3592) | Ithaca College | USA | |
| 720 (3603) | SETI Institute | USA | |
| 721 (3636) | Suffolk University | USA | |
| 722 (3654) | Bryn Mawr College | USA | |
| 723 (3671) | University of Richmond | USA | |
| 723 (3671) | University of Tennessee, Chattanooga | USA | |
| 723 (3671) | Wellesley College | USA | |
| 726 (3681) | Georgia Southern University | USA | |
| 727 (3692) | College of Charleston | USA | |
| 727 (3692) | Kennesaw State University | USA | |
| 729 (3713) | Missouri State University | USA | |
| 730 (3720) | California State University, Long Beach | USA | |
| 731 (3734) | University of Northern Iowa | USA | |
| 731 (3734) | Youngstown State University | USA | |
| 733 (3742) | Southern Illinois University Edwardsville | USA | |
| 734 (3760) | Desert Research Institute, Reno | USA | |
| 734 (3760) | Hampton University | USA | |
| 734 (3760) | Middle Tennessee State University | USA | |
| 737 (3769) | Eastern Illinois University | USA | |
| 737 (3769) | Fordham University | USA | |
| 739 (3779) | NASA Marshall Space Flight Center | USA | |
| 740 (3788) | Fairfield University | USA | |
| 741 (3801) | Joint Quantum Institute | USA | |
| 741 (3801) | Southeastern Louisiana University | USA | |
| 743 (3825) | National Center for Atmospheric Research | USA | |
| 744 (3839) | RAND Corporation | USA | |
| 745 (3841) | University of Northern Colorado | USA | |
| 746 (3849) | California State University, Northridge | USA | |
| 747 (3856) | New England Research Institutes | USA | |
| 747 (3856) | Texas Woman's University | USA | |
| 747 (3856) | United States Naval Academy | USA | |
| 750 (3873) | Canadian Space Agency | CAN | |
| 750 (3873) | Claremont Graduate University | USA | |
| 752 (3911) | Bucknell University | USA | |
| 753 (3916) | Missouri Botanical Garden | USA | |
| 754 (3929) | Trent University | CAN | |
| 755 (3939) | Fermi National Accelerator Laboratory | USA | |
| 755 (3939) | Princeton Plasma Physics Laboratory | USA | |
| 757 (3963) | University of Hawaii, Hilo | USA | |
| 758 (3997) | Environment Canada | CAN | |
| 759 (4008) | The University of Winnipeg | CAN | |
| 760 (4031) | American Museum of Natural History | USA | |
| 761 (4041) | City University of New York, John Jay College of Criminal Justice | USA | |
| 761 (4041) | Embry-Riddle Aeronautical University | USA | |
| 761 (4041) | Smith College | USA | |
| 764 (4051) | Central Connecticut State University | USA | |
| 764 (4051) | Oklahoma State University, Oklahoma City | USA | |
| 766 (4056) | Smithsonian Institution | USA | |
| 767 (4071) | Universities Space Research Association | USA | |
| 768 (4085) | California State University, Fullerton | USA | |
| 769 (4104) | Atomic Energy of Canada Ltd. | CAN | |
| 770 (4112) | Eastern Kentucky University | USA | |
| 770 (4112) | The New School | USA | |
| 770 (4112) | Vassar College | USA | |
| 773 (4126) | Indiana University of Pennsylvania | USA | |
| 774 (4153) | Sonoma State University | USA | |
| 774 (4153) | Swarthmore College | USA | |
| 776 (4162) | Bentley University | USA | |
| 777 (4167) | Ball State University | USA | |
| 778 (4177) | Delaware State University | USA | |
| 779 (4185) | Saint Mary's University | CAN | |
| 780 (4191) | Seattle University | USA | |
| 780 (4191) | Washington State University, Vancouver | USA | |
| 780 (4191) | Western Carolina University | USA | |
| 783 (4205) | National Optical Astronomy Observatory | USA | |
| 784 (4211) | Nuclear Regulatory Commission | USA | |
| 785 (4229) | American University | USA | |
| 786 (4247) | Humboldt State University | USA | |
| 787 (4284) | Bedford Institute of Oceanography | CAN | |
| 787 (4284) | URS Corporation | USA | |
| 789 (4307) | National Bureau of Economic Research | USA | |
| 790 (4354) | Clark University | USA | |
| 790 (4354) | Western Washington University | USA | |
| 792 (4367) | Field Museum Natural History | USA | |
| 793 (4405) | Space Telescope Science Institute | USA | |
| 794 (4413) | Athabasca University | CAN | |
| 794 (4413) | Babson College | USA | |
| 794 (4413) | California State University, San Bernardino | USA | |
| 794 (4413) | Chapman University | USA | |
| 794 (4413) | Colgate University | USA | |
| 794 (4413) | Educational Testing Service | USA | |
| 794 (4413) | Infrared Processing and Analysis Center | USA | |
| 794 (4413) | International Monetary Fund | USA | |
| 794 (4413) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 794 (4413) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 794 (4413) | National Radio Astronomy Observatory, Socorro | USA | |
| 794 (4413) | Perimeter Institute for Theoretical Physics | CAN | |
| 794 (4413) | Purdue University Calumet | USA | |
| 794 (4413) | Richard Stockton College of New Jersey | USA | |
| 794 (4413) | Sam Houston State University | USA | |
| 794 (4413) | Spitzer Science Center | USA | |
| 794 (4413) | Tennessee State University | USA | |
| 794 (4413) | United States Fish and Wildlife Service | USA | |
| 794 (4413) | University of West Florida | USA | |
| 794 (4413) | Wildlife Conservation Society USA | USA | |
| 794 (4413) | World Bank United States | USA | |
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