| 1 (74) | United States Department of Agriculture | USA |  |
| 2 (122) | Lawrence Berkeley National Laboratory | USA | |
| 3 (162) | National Aeronautics and Space Administration * | USA | |
| 4 (240) | Doe Joint Genome Institute | USA | |
| 5 (249) | U.S. Army | USA | |
| 6 (254) | National Center for Biotechnology Information | USA | |
| 7 (325) | National Institute of Standards and Technology * | USA | |
| 8 (352) | Los Alamos National Laboratory | USA | |
| 9 (388) | National Renewable Energy Laboratory | USA | |
| 10 (417) | Oak Ridge National Laboratory | USA | |
| 11 (436) | US Naval Research Laboratory | USA | |
| 12 (437) | Sandia National Laboratories, New Mexico | USA | |
| 13 (450) | Argonne National Laboratory | USA | |
| 14 (469) | Lawrence Livermore National Laboratory | USA | |
| 15 (476) | U.S. Food and Drug Administration | USA | |
| 16 (510) | Pacific Northwest National Laboratory | USA | |
| 17 (533) | Armed Forces Institute of Pathology | USA | |
| 18 (568) | University of Maryland Biotechnology Institute | USA | |
| 19 (632) | U.S. Air Force | USA | |
| 20 (727) | Jet Propulsion Laboratory | USA | |
| 21 (779) | Brookhaven National Laboratory | USA | |
| 22 (826) | United States Geological Survey | USA | |
| 23 (852) | NASA Goddard Space Flight Center | USA | |
| 24 (876) | National Center for Atmospheric Research | USA | |
| 25 (901) | National Energy Technology Laboratory | USA | |
| 26 (947) | National Oceanic and Atmospheric Administration | USA | |
| 27 (1014) | Ames Laboratory | USA | |
| 28 (1019) | Smithsonian Institution | USA | |
| 29 (1111) | US Environmental Protection Agency | USA | |
| 30 (1244) | NASA Goddard Institute for Space Studies | USA | |
| 31 (1249) | U.S. Department of Energy | USA | |
| 32 (1380) | NASA Ames Research Center | USA | |
| 33 (1385) | World Bank United States | USA | |
| 34 (1403) | University of Maryland, Center for Environmental Science | USA | |
| 35 (1473) | National High Magnetic Field Laboratory | USA | |
| 36 (1543) | NASA Langley Research Center | USA | |
| 37 (1579) | American Museum of Natural History | USA | |
| 38 (1636) | SLAC National Accelerator Laboratory | USA | |
| 39 (1765) | National Optical Astronomy Observatory | USA | |
| 40 (1779) | Princeton Plasma Physics Laboratory | USA | |
| 41 (1830) | Space Telescope Science Institute | USA | |
| 42 (1878) | Joint Quantum Institute | USA | |
| 43 (1889) | Spitzer Science Center | USA | |
| 44 (2177) | US National Science Foundation | USA | |
| 45 (2307) | Nemours A Children's Health System | USA | |
| 46 (2322) | Fermi National Accelerator Laboratory | USA | |
| 47 (2340) | Thomas Jefferson National Accelerator Facility | USA | |
| 48 (2341) | Joint Institute for Laboratory Astrophysics | USA | |
| 49 (2370) | Field Museum Natural History | USA | |
| 50 (2577) | Glenn Research Center | USA | |
| 51 (2771) | NASA Stennis Space Center | USA | |
| 52 (2831) | Idaho National Laboratory | USA | |
| 53 (2843) | NASA Johnson Space Center | USA | |
| 54 (2845) | Naval Air Systems Command | USA | |
| 55 (2849) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 56 (3693) | NASA Kennedy Space Center | USA | |
| 57 (3709) | NASA Marshall Space Flight Center | USA | |
| 58 (3934) | United States Fish and Wildlife Service | USA | |
| 59 (3974) | Savannah River National Laboratory | USA | |
| 60 (4004) | Missouri Botanical Garden | USA | |
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