| 1 (6) | National Aeronautics and Space Administration * | USA |  |
| 2 (7) | National Oceanic and Atmospheric Administration | USA | |
| 3 (13) | National Center for Atmospheric Research | USA | |
| 4 (29) | NASA Goddard Space Flight Center | USA | |
| 5 (43) | Jet Propulsion Laboratory | USA | |
| 6 (85) | Pacific Northwest National Laboratory * | USA | |
| 7 (93) | United States Department of Agriculture | USA | |
| 8 (121) | US Environmental Protection Agency | USA | |
| 9 (138) | NASA Langley Research Center | USA | |
| 10 (140) | NASA Goddard Institute for Space Studies | USA | |
| 11 (158) | United States Geological Survey | USA | |
| 12 (175) | Lawrence Berkeley National Laboratory * | USA | |
| 13 (183) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 14 (210) | Smithsonian Institution * | USA | |
| 15 (285) | Oak Ridge National Laboratory | USA | |
| 16 (309) | National Institute of Standards and Technology * | USA | |
| 17 (340) | NASA Stennis Space Center | USA | |
| 18 (342) | US Naval Research Laboratory | USA | |
| 19 (418) | Argonne National Laboratory * | USA | |
| 20 (431) | Brookhaven National Laboratory * | USA | |
| 21 (471) | U.S. Air Force | USA | |
| 22 (564) | Los Alamos National Laboratory * | USA | |
| 23 (610) | Lawrence Livermore National Laboratory * | USA | |
| 24 (631) | U.S. Army * | USA | |
| 25 (659) | National Renewable Energy Laboratory | USA | |
| 26 (669) | NASA Ames Research Center | USA | |
| 27 (828) | NASA Marshall Space Flight Center | USA | |
|
