| 1 (2) | National Aeronautics and Space Administration * | USA |  |
| 2 (11) | Smithsonian Institution * | USA | |
| 3 (12) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 4 (13) | Jet Propulsion Laboratory | USA | |
| 5 (18) | NASA Goddard Space Flight Center | USA | |
| 6 (42) | Space Telescope Science Institute | USA | |
| 7 (56) | NASA Goddard Institute for Space Studies | USA | |
| 8 (102) | SLAC National Accelerator Laboratory | USA | |
| 9 (103) | NASA Ames Research Center | USA | |
| 10 (110) | Infrared Processing and Analysis Center | USA | |
| 11 (115) | National Oceanic and Atmospheric Administration | USA | |
| 12 (124) | National Radio Astronomy Observatory Charlottesville | USA | |
| 13 (129) | National Center for Atmospheric Research | USA | |
| 14 (137) | National Research Council Canada * | CAN | |
| 15 (179) | Los Alamos National Laboratory * | USA | |
| 16 (191) | U.S. Air Force | USA | |
| 17 (213) | United States Geological Survey | USA | |
| 18 (220) | Lawrence Berkeley National Laboratory * | USA | |
| 19 (221) | American Museum of Natural History | USA | |
| 20 (223) | Argonne National Laboratory * | USA | |
| 21 (301) | National Radio Astronomy Observatory, Socorro | USA | |
| 22 (334) | National Institute of Standards and Technology * | USA | |
| 23 (342) | Smithsonian National Museum of Natural History | USA | |
| 24 (354) | Fermi National Accelerator Laboratory | USA | |
| 25 (378) | Sandia National Laboratories, New Mexico | USA | |
| 26 (397) | Environment Canada | CAN | |
| 27 (435) | US Naval Research Laboratory | USA | |
| 28 (447) | Pacific Northwest National Laboratory * | USA | |
| 29 (453) | Joint Institute for Laboratory Astrophysics | USA | |
| 30 (456) | NASA Johnson Space Center | USA | |
| 31 (457) | US National Science Foundation * | USA | |
| 32 (491) | Lawrence Livermore National Laboratory * | USA | |
| 33 (545) | NASA Marshall Space Flight Center | USA | |
| 34 (580) | Brookhaven National Laboratory * | USA | |
| 35 (630) | NASA Langley Research Center | USA | |
| 36 (672) | Oak Ridge National Laboratory | USA | |
| 37 (676) | Glenn Research Center | USA | |
| 38 (792) | Natural Resources Canada | CAN | |
| 39 (834) | US Environmental Protection Agency | USA | |
| 40 (987) | Princeton Plasma Physics Laboratory | USA | |
| 41 (1143) | National Research Council of the National Academies | USA | |
| 42 (1186) | U.S. Army * | USA | |
|
