| 501 (2494) | Denver Health Medical Center | USA |  |
| 502 (2500) | Geisinger Medical System | USA | |
| 503 (2518) | University of California, Merced | USA |  |
| 504 (2521) | Children's Mercy Hospital | USA | |
| 505 (2525) | Eastern Michigan University | USA | |
| 506 (2533) | Group Health Cooperative | USA | |
| 507 (2537) | University of Maryland, Center for Environmental Science | USA |  |
| 508 (2543) | Syracuse University | USA | |
| 509 (2552) | Harvey Mudd College | USA | |
| 509 (2552) | University of Arkansas, Little Rock | USA | |
| 511 (2559) | University of Massachusetts, Boston | USA | |
| 512 (2571) | State University of New York, College of Environmental Science and Forestry | USA | |
| 513 (2585) | University of Wisconsin, Oshkosh | USA | |
| 514 (2590) | California State Polytechnic University, Pomona | USA | |
| 515 (2605) | California State University, Los Angeles | USA | |
| 516 (2616) | Yale New Haven Health System | USA | |
| 517 (2638) | Old Dominion University | USA | |
| 517 (2638) | San Francisco State University | USA | |
| 519 (2656) | University of Tulsa | USA | |
| 520 (2667) | Cleveland State University | USA | |
| 520 (2667) | University of New Hampshire | USA | |
| 522 (2676) | Texas Christian University | USA | |
| 522 (2676) | University of Denver | USA | |
| 524 (2693) | California Polytechnic State University, San Luis Obispo | USA | |
| 525 (2710) | Wilford Hall Ambulatory Surgical Center | USA | |
| 526 (2714) | Jackson State University | USA | |
| 526 (2714) | North Florida-South Georgia Veterans Health System | USA | |
| 528 (2724) | Amherst College | USA | |
| 529 (2733) | University of Missouri, Saint Louis | USA | |
| 530 (2765) | Savannah River National Laboratory | USA | |
| 531 (2772) | Northern Illinois University | USA | |
| 532 (2780) | University of Texas, Pan American | USA | |
| 533 (2790) | NASA Ames Research Center | USA | |
| 534 (2801) | Midwestern University | USA | |
| 534 (2801) | University of Louisiana, Lafayette | USA | |
| 534 (2801) | University of St. Thomas | USA | |
| 534 (2801) | Western Michigan University | USA | |
| 538 (2831) | Cambridge Health Alliance | USA | |
| 538 (2831) | Southwest Research Institute | USA |  |
| 540 (2846) | West Chester University of Pennsylvania | USA | |
| 541 (2849) | University of Colorado, Colorado Springs | USA | |
| 542 (2852) | National Oceanic and Atmospheric Administration | USA | |
| 543 (2856) | Alegent Creighton Health | USA | |
| 544 (2870) | University of Wyoming | USA | |
| 545 (2878) | California State University, Fresno | USA | |
| 546 (2885) | NASA Langley Research Center | USA | |
| 546 (2885) | Walter Reed National Military Medical Center | USA | |
| 548 (2899) | University of South Florida-Saint Petersburg | USA | |
| 549 (2913) | Williams College | USA | |
| 550 (2924) | United States Military Academy at West Point | USA | |
| 551 (2938) | New Mexico Institute of Mining and Technology | USA | |
| 552 (2941) | Loyola University Maryland | USA | |
| 553 (2948) | Harvard Pilgrim Health Care | USA | |
| 553 (2948) | University of Montana, Missoula | USA | |
| 555 (2966) | Milwaukee VA Medical Center | USA | |
| 556 (2976) | Thomas Jefferson National Accelerator Facility | USA | |
| 557 (2977) | US National Science Foundation | USA | |
| 558 (2988) | College of William and Mary | USA | |
| 558 (2988) | Trinity University | USA | |
| 560 (2997) | Bowling Green State University | USA | |
| 561 (3048) | City University of New York, Queens College | USA | |
| 562 (3059) | James Madison University | USA | |
| 562 (3059) | Lafayette College | USA | |
| 564 (3070) | University of Massachusetts, Dartmouth | USA | |
| 565 (3075) | Tennessee Technological University | USA | |
| 566 (3080) | Loyola Marymount University | USA | |
| 567 (3087) | Kent State University | USA | |
| 568 (3098) | Adelphi University | USA | |
| 569 (3103) | Nova Southeastern University, Estados Unidos | USA | |
| 570 (3115) | Saint John's University | USA | |
| 570 (3115) | University of Nevada-Las Vegas | USA | |
| 572 (3129) | College of Charleston | USA | |
| 573 (3134) | Gonzaga University | USA | |
| 573 (3134) | University of North Carolina, Greensboro | USA | |
| 575 (3139) | Long Island University | USA | |
| 575 (3139) | Western Illinois University, Macomb | USA | |
| 577 (3149) | Hofstra University | USA | |
| 578 (3158) | Norfolk State University | USA | |
| 579 (3169) | California State University, Sacramento | USA | |
| 579 (3169) | Science System and Applications, Inc | USA |  |
| 581 (3180) | Children's Healthcare of Atlanta | USA | |
| 581 (3180) | Rothman Institute | USA | |
| 581 (3180) | University of San Francisco | USA | |
| 584 (3186) | United States Geological Survey | USA | |
| 585 (3197) | Children's Medical Center Dallas | USA | |
| 585 (3197) | Southern University, Baton Rouge | USA | |
| 587 (3217) | Villanova University | USA | |
| 588 (3246) | Baystate Health System | USA | |
| 588 (3246) | Electric Power Research Institute | USA | |
| 590 (3271) | Morgan State University | USA | |
| 591 (3283) | Haverford College in Pennsylvania | USA | |
| 592 (3290) | Grand Valley State University | USA | |
| 593 (3308) | Idaho State University | USA | |
| 594 (3316) | Naval Postgraduate School | USA | |
| 595 (3329) | Montclair State University | USA | |
| 596 (3342) | Bryn Mawr College | USA | |
| 596 (3342) | NASA Goddard Space Flight Center | USA | |
| 596 (3342) | Rehabilitation Institute of Chicago | USA | |
| 599 (3359) | Central Michigan University | USA | |
| 600 (3370) | SLAC National Accelerator Laboratory | USA | |
| 601 (3379) | Suffolk University | USA | |
| 601 (3379) | University of Central Arkansas | USA | |
| 603 (3393) | University of North Florida | USA | |
| 604 (3403) | Indiana State University | USA | |
| 604 (3403) | University of Tennessee, Chattanooga | USA | |
| 606 (3431) | University of North Carolina, Wilmington | USA | |
| 606 (3431) | University of Northern Iowa | USA | |
| 608 (3441) | Franklin & Marshall College | USA | |
| 608 (3441) | Southern Illinois University Edwardsville | USA | |
| 610 (3451) | University of Alaska, Fairbanks | USA | |
| 610 (3451) | University of San Diego | USA | |
| 612 (3457) | Eastern Illinois University | USA | |
| 612 (3457) | Express Scripts Holding Company | USA | |
| 612 (3457) | NASA Johnson Space Center | USA | |
| 615 (3463) | Missouri State University | USA | |
| 616 (3468) | Kennesaw State University | USA | |
| 617 (3486) | Middle Tennessee State University | USA | |
| 617 (3486) | Tuskegee University | USA | |
| 617 (3486) | University of Alaska, Anchorage | USA | |
| 620 (3496) | Western Kentucky University | USA | |
| 621 (3512) | Appalachian State University | USA | |
| 622 (3521) | Texas State University, San Marcos | USA | |
| 623 (3530) | California State University, East Bay | USA | |
| 624 (3538) | Towson University | USA | |
| 625 (3555) | University of Wisconsin, Eau Claire | USA | |
| 626 (3569) | University of Alabama, Huntsville | USA | |
| 627 (3573) | Regenstrief Institute | USA | |
| 628 (3582) | Illinois State University | USA | |
| 629 (3602) | Fairfield University | USA | |
| 629 (3602) | Pace University | USA | |
| 629 (3602) | Texas A&M University, Corpus Christi | USA | |
| 632 (3659) | Texas Woman's University | USA | |
| 633 (3684) | Fermi National Accelerator Laboratory | USA | |
| 633 (3684) | The College of New Jersey | USA | |
| 635 (3705) | City University of New York, Lehman College | USA | |
| 636 (3753) | DePaul University | USA | |
| 636 (3753) | Wichita State University | USA | |
| 638 (3770) | Indiana University/Purdue University at Fort Wayne | USA | |
| 638 (3770) | Joint Quantum Institute | USA | |
| 638 (3770) | NASA Kennedy Space Center | USA | |
| 638 (3770) | Seton Hall University | USA | |
| 638 (3770) | Wellesley College | USA | |
| 643 (3794) | Maimonides Medical Center | USA | |
| 643 (3794) | SETI Institute | USA | |
| 645 (3813) | Desert Research Institute, Reno | USA | |
| 645 (3813) | Rowan University | USA | |
| 647 (3828) | United States Naval Academy | USA | |
| 648 (3843) | University of Hawaii, Hilo | USA | |
| 649 (3853) | California State University, Northridge | USA | |
| 649 (3853) | Joint Institute for Laboratory Astrophysics | USA | |
| 651 (3863) | MetroHealth System | USA | |
| 651 (3863) | Youngstown State University | USA | |
| 653 (3886) | City University of New York, John Jay College of Criminal Justice | USA | |
| 653 (3886) | Embry-Riddle Aeronautical University | USA | |
| 653 (3886) | Lamar University | USA | |
| 653 (3886) | Miriam Hospital | USA | |
| 653 (3886) | Smith College | USA | |
| 658 (3899) | California State University, San Marcos | USA | |
| 659 (3906) | California State University, Fullerton | USA | |
| 659 (3906) | General Atomics | USA | |
| 661 (3916) | Universities Space Research Association | USA | |
| 662 (3927) | Fordham University | USA | |
| 662 (3927) | Oberlin College | USA | |
| 662 (3927) | Widener University | USA | |
| 665 (3954) | Smithsonian Institution | USA | |
| 666 (3996) | Eastern Kentucky University | USA | |
| 666 (3996) | Vassar College | USA | |
| 668 (4006) | National Center for Atmospheric Research | USA | |
| 669 (4010) | Wesleyan University, Middletown | USA | |
| 670 (4020) | Bowdoin College | USA | |
| 670 (4020) | The New School | USA | |
| 672 (4047) | Swarthmore College | USA | |
| 673 (4076) | Bentley University | USA | |
| 673 (4076) | The University of Vermont Medical Center | USA | |
| 675 (4105) | Delaware State University | USA | |
| 675 (4105) | NASA Goddard Institute for Space Studies | USA | |
| 677 (4114) | RAND Corporation | USA | |
| 678 (4132) | Barnard College | USA | |
| 678 (4132) | Nuclear Regulatory Commission | USA | |
| 678 (4132) | Western Carolina University | USA | |
| 681 (4167) | New England Research Institutes | USA | |
| 681 (4167) | University of Northern Colorado | USA | |
| 683 (4185) | Georgia Southern University | USA | |
| 684 (4194) | Claremont Graduate University | USA | |
| 684 (4194) | Humboldt State University | USA | |
| 684 (4194) | Mount Holyoke College | USA | |
| 687 (4221) | Princeton Plasma Physics Laboratory | USA | |
| 688 (4229) | Missouri Botanical Garden | USA | |
| 688 (4229) | University of Richmond | USA | |
| 690 (4281) | American Museum of Natural History | USA | |
| 690 (4281) | California State University, Long Beach | USA | |
| 690 (4281) | NASA Marshall Space Flight Center | USA | |
| 693 (4287) | Hampton University | USA | |
| 694 (4359) | Western Washington University | USA | |
| 695 (4383) | Bucknell University | USA | |
| 695 (4383) | Field Museum Natural History | USA | |
| 697 (4429) | American University | USA | |
| 698 (4481) | Alliant International University | USA | |
| 698 (4481) | Ball State University | USA | |
| 698 (4481) | California State University, San Bernardino | USA | |
| 698 (4481) | Chapman University | USA | |
| 698 (4481) | Claremont McKenna College | USA | |
| 698 (4481) | Clark University | USA | |
| 698 (4481) | Colgate University | USA | |
| 698 (4481) | Indiana University of Pennsylvania | USA | |
| 698 (4481) | Infrared Processing and Analysis Center | USA | |
| 698 (4481) | International Monetary Fund | USA | |
| 698 (4481) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 698 (4481) | National Bureau of Economic Research | USA | |
| 698 (4481) | National Optical Astronomy Observatory | USA | |
| 698 (4481) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 698 (4481) | National Radio Astronomy Observatory, Socorro | USA | |
| 698 (4481) | Oklahoma State University, Oklahoma City | USA | |
| 698 (4481) | Planetary Science Institute | USA | |
| 698 (4481) | Purdue University Calumet | USA | |
| 698 (4481) | Richard Stockton College of New Jersey | USA | |
| 698 (4481) | Sam Houston State University | USA | |
| 698 (4481) | Seattle University | USA | |
| 698 (4481) | Space Telescope Science Institute | USA | |
| 698 (4481) | Spitzer Science Center | USA | |
| 698 (4481) | State University of West Georgia | USA | |
| 698 (4481) | Tennessee State University | USA | |
| 698 (4481) | United States Fish and Wildlife Service | USA | |
| 698 (4481) | University of West Florida | USA | |
| 698 (4481) | URS Corporation | USA | |
| 698 (4481) | Washington State University, Vancouver | USA | |
| 698 (4481) | Wheaton College | USA | |
| 698 (4481) | Wildlife Conservation Society USA | USA | |
| 698 (4481) | World Bank United States | USA | |
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