| 1 (5) | National Aeronautics and Space Administration * | USA |  |
| 2 (22) | NASA Goddard Space Flight Center | USA | |
| 3 (31) | Jet Propulsion Laboratory | USA | |
| 4 (35) | National Oceanic and Atmospheric Administration | USA | |
| 5 (48) | Smithsonian Institution * | USA | |
| 6 (58) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 7 (73) | United States Geological Survey | USA | |
| 8 (103) | National Center for Atmospheric Research | USA | |
| 9 (116) | Lawrence Berkeley National Laboratory * | USA | |
| 10 (133) | Space Telescope Science Institute | USA | |
| 11 (161) | NASA Ames Research Center | USA | |
| 12 (183) | United States Department of Agriculture | USA | |
| 13 (228) | Pacific Northwest National Laboratory | USA | |
| 14 (238) | National Energy Technology Laboratory | USA | |
| 15 (240) | U.S. Department of Energy * | USA | |
| 16 (249) | Los Alamos National Laboratory * | USA | |
| 17 (268) | Oak Ridge National Laboratory | USA | |
| 18 (270) | Glenn Research Center | USA | |
| 19 (271) | NASA Langley Research Center | USA | |
| 20 (285) | Infrared Processing and Analysis Center | USA | |
| 21 (293) | NASA Johnson Space Center | USA | |
| 22 (297) | National Institute of Standards and Technology * | USA | |
| 23 (302) | Lawrence Livermore National Laboratory * | USA | |
| 23 (302) | US Environmental Protection Agency | USA | |
| 25 (315) | NASA Goddard Institute for Space Studies | USA | |
| 26 (316) | SLAC National Accelerator Laboratory | USA | |
| 27 (324) | National Radio Astronomy Observatory Charlottesville | USA | |
| 28 (336) | U.S. Air Force | USA | |
| 28 (336) | Fermi National Accelerator Laboratory | USA | |
| 30 (350) | U.S. Army * | USA | |
| 31 (352) | Argonne National Laboratory | USA | |
| 32 (355) | National Radio Astronomy Observatory, Socorro | USA | |
| 33 (363) | National Optical Astronomy Observatory | USA | |
| 34 (364) | US Naval Research Laboratory | USA | |
| 35 (373) | NASA Stennis Space Center | USA | |
| 36 (376) | Brookhaven National Laboratory * | USA | |
| 37 (385) | NASA Marshall Space Flight Center | USA | |
| 38 (389) | University of Maryland, Center for Environmental Science | USA | |
| 39 (406) | Sandia National Laboratories, New Mexico | USA | |
| 40 (407) | American Museum of Natural History | USA | |
| 41 (417) | US National Science Foundation * | USA | |
| 42 (420) | Smithsonian Environmental Research Center | USA | |
| 43 (423) | Subaru Telescope | USA | |
| 44 (425) | U.S. Department of Health and Human Services * | USA | |
| 44 (425) | National High Magnetic Field Laboratory | USA | |
| 46 (435) | United States Fish and Wildlife Service | USA | |
| 47 (444) | Oak Ridge Institute for Science and Education | USA | |
| 48 (465) | Smithsonian National Museum of Natural History | USA | |
| 49 (481) | Joint Institute for Laboratory Astrophysics | USA | |
| 50 (483) | Field Museum Natural History | USA | |
| 51 (484) | World Bank United States | USA | |
| 52 (497) | Princeton Plasma Physics Laboratory | USA | |
| 53 (536) | National Renewable Energy Laboratory | USA | |
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