| 1 (5) | National Aeronautics and Space Administration * | USA |  |
| 2 (32) | NASA Goddard Space Flight Center | USA | |
| 3 (33) | Jet Propulsion Laboratory | USA | |
| 4 (37) | National Oceanic and Atmospheric Administration | USA | |
| 5 (39) | Smithsonian Institution * | USA | |
| 6 (53) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 7 (70) | United States Geological Survey | USA | |
| 8 (105) | National Center for Atmospheric Research | USA | |
| 9 (120) | Space Telescope Science Institute | USA | |
| 10 (142) | Lawrence Berkeley National Laboratory * | USA | |
| 11 (158) | United States Department of Agriculture | USA | |
| 12 (196) | Oak Ridge Institute for Science and Education | USA | |
| 13 (219) | Los Alamos National Laboratory * | USA | |
| 14 (221) | Infrared Processing and Analysis Center | USA | |
| 15 (234) | National Energy Technology Laboratory | USA | |
| 16 (236) | U.S. Department of Energy * | USA | |
| 16 (236) | NASA Ames Research Center | USA | |
| 18 (252) | US Environmental Protection Agency | USA | |
| 19 (259) | National Radio Astronomy Observatory Charlottesville | USA | |
| 20 (275) | Pacific Northwest National Laboratory | USA | |
| 21 (276) | Lawrence Livermore National Laboratory * | USA | |
| 22 (288) | SLAC National Accelerator Laboratory | USA | |
| 23 (291) | National Institute of Standards and Technology * | USA | |
| 24 (303) | US Naval Research Laboratory | USA | |
| 25 (317) | National Optical Astronomy Observatory | USA | |
| 26 (319) | United States Fish and Wildlife Service | USA | |
| 27 (325) | National Radio Astronomy Observatory, Socorro | USA | |
| 28 (326) | Sandia National Laboratories, New Mexico | USA | |
| 29 (328) | NASA Goddard Institute for Space Studies | USA | |
| 30 (334) | Oak Ridge National Laboratory | USA | |
| 31 (338) | Fermi National Accelerator Laboratory | USA | |
| 32 (346) | US National Science Foundation * | USA | |
| 33 (349) | Bay Area Environmental Research Institute | USA | |
| 34 (350) | Brookhaven National Laboratory * | USA | |
| 35 (359) | Argonne National Laboratory | USA | |
| 36 (365) | American Museum of Natural History | USA | |
| 37 (372) | Subaru Telescope | USA | |
| 38 (375) | NASA Langley Research Center | USA | |
| 39 (377) | University of Maryland, Center for Environmental Science | USA | |
| 40 (395) | NASA Johnson Space Center | USA | |
| 41 (400) | U.S. Air Force | USA | |
| 42 (408) | Joint Institute for Laboratory Astrophysics | USA | |
| 43 (409) | National Renewable Energy Laboratory | USA | |
| 44 (411) | World Bank United States | USA | |
| 45 (413) | U.S. Army * | USA | |
| 46 (420) | NASA Marshall Space Flight Center | USA | |
| 47 (423) | National High Magnetic Field Laboratory | USA | |
| 48 (425) | NASA Stennis Space Center | USA | |
| 49 (430) | Field Museum Natural History | USA | |
| 50 (443) | Smithsonian National Museum of Natural History | USA | |
| 51 (459) | Smithsonian Environmental Research Center | USA | |
| 52 (475) | Princeton Plasma Physics Laboratory | USA | |
| 53 (479) | Glenn Research Center | USA | |
| 54 (561) | Idaho National Laboratory | USA | |
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