| 1 (76) | United States Department of Agriculture | USA |  |
| 2 (185) | Lawrence Berkeley National Laboratory | USA | |
| 3 (247) | U.S. Army | USA | |
| 4 (480) | U.S. Food and Drug Administration | USA | |
| 5 (523) | National Renewable Energy Laboratory | USA | |
| 6 (546) | Oak Ridge National Laboratory | USA | |
| 7 (590) | National Center for Biotechnology Information | USA | |
| 8 (631) | Pacific Northwest National Laboratory | USA | |
| 9 (645) | Lawrence Livermore National Laboratory | USA | |
| 10 (706) | National Institute of Standards and Technology * | USA | |
| 11 (771) | Sandia National Laboratories, New Mexico | USA | |
| 12 (792) | US Naval Research Laboratory | USA | |
| 13 (819) | Los Alamos National Laboratory | USA | |
| 14 (900) | Argonne National Laboratory | USA | |
| 15 (917) | National Aeronautics and Space Administration * | USA | |
| 16 (1002) | Doe Joint Genome Institute | USA | |
| 17 (1127) | U.S. Air Force | USA | |
| 18 (1517) | US Environmental Protection Agency | USA | |
| 19 (1561) | Brookhaven National Laboratory | USA | |
| 20 (1682) | National Energy Technology Laboratory | USA | |
| 21 (1698) | National High Magnetic Field Laboratory | USA | |
| 22 (1779) | Jet Propulsion Laboratory | USA | |
| 23 (1918) | U.S. Department of Energy | USA | |
| 24 (1952) | Idaho National Laboratory | USA | |
| 25 (1987) | Nemours A Children's Health System | USA | |
| 26 (2355) | Glenn Research Center | USA | |
| 27 (2632) | National Oceanic and Atmospheric Administration | USA | |
| 28 (2650) | Ames Laboratory | USA | |
| 29 (2679) | NASA Stennis Space Center | USA | |
| 30 (2864) | University of Maryland, Center for Environmental Science | USA | |
| 31 (2964) | NASA Goddard Space Flight Center | USA | |
| 32 (3062) | Savannah River National Laboratory | USA | |
| 33 (3179) | Thomas Jefferson National Accelerator Facility | USA | |
| 34 (3214) | NASA Ames Research Center | USA | |
| 35 (3224) | NASA Kennedy Space Center | USA | |
| 36 (3441) | NASA Johnson Space Center | USA | |
| 37 (3452) | US National Science Foundation | USA | |
| 38 (3479) | NASA Langley Research Center | USA | |
| 39 (3497) | United States Geological Survey | USA | |
| 40 (3548) | Smithsonian Institution | USA | |
| 41 (3620) | SLAC National Accelerator Laboratory | USA | |
| 42 (3753) | Fermi National Accelerator Laboratory | USA | |
| 43 (4013) | National Center for Atmospheric Research | USA | |
| 44 (4020) | Joint Quantum Institute | USA | |
| 45 (4130) | Field Museum Natural History | USA | |
| 46 (4191) | Joint Institute for Laboratory Astrophysics | USA | |
| 47 (4260) | Princeton Plasma Physics Laboratory | USA | |
| 48 (4286) | American Museum of Natural History | USA | |
| 49 (4342) | Infrared Processing and Analysis Center | USA | |
| 49 (4342) | Missouri Botanical Garden | USA | |
| 49 (4342) | NASA Marshall Space Flight Center | USA | |
| 49 (4342) | National Optical Astronomy Observatory | USA | |
| 49 (4342) | National Radio Astronomy Observatory, Charlottesville | USA | |
| 49 (4342) | National Radio Astronomy Observatory, Socorro | USA | |
| 49 (4342) | New York Botanical Garden | USA | |
| 49 (4342) | Nuclear Regulatory Commission | USA | |
| 49 (4342) | Research Institute for Fragrance Materials | USA | |
| 49 (4342) | Space Telescope Science Institute | USA | |
| 49 (4342) | Spitzer Science Center | USA | |
| 49 (4342) | Subaru Telescope | USA | |
| 49 (4342) | United States Fish and Wildlife Service | USA | |
| 49 (4342) | World Bank United States | USA | |
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