| 1 (172) | Lawrence Berkeley National Laboratory * | USA | |
| 2 (192) | SLAC National Accelerator Laboratory | USA | |
| 3 (221) | Argonne National Laboratory * | USA | |
| 4 (340) | National Institute of Standards and Technology * | USA | |
| 5 (360) | Smithsonian Institution * | USA | |
| 6 (408) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 7 (420) | National Aeronautics and Space Administration * | USA | |
| 8 (424) | American Museum of Natural History | USA | |
| 9 (457) | United States Geological Survey | USA | |
| 10 (477) | National Oceanic and Atmospheric Administration | USA | |
| 11 (600) | United States Department of Agriculture | USA | |
| 12 (604) | Jet Propulsion Laboratory | USA | |
| 13 (630) | Smithsonian National Museum of Natural History | USA | |
| 14 (675) | National Center for Atmospheric Research | USA | |
| 15 (732) | Lawrence Livermore National Laboratory * | USA | |
| 16 (776) | Los Alamos National Laboratory * | USA | |
| 17 (1048) | Field Museum Natural History | USA | |
| 18 (1243) | Natural Resources Canada | CAN | |
| 19 (1423) | U.S. Air Force | USA | |
| 20 (1695) | U.S. Army * | USA | |
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