| 1 (516) | Lawrence Berkeley National Laboratory * | USA |  |
| 2 (769) | National Institute of Standards and Technology * | USA | |
| 3 (813) | United States Geological Survey | USA | |
| 4 (820) | United States Department of Agriculture | USA | |
| 5 (834) | Joint Institute for Laboratory Astrophysics | USA | |
| 6 (845) | National Research Council Canada * | CAN | |
| 7 (883) | American Institutes for Research | USA | |
| 8 (913) | Smithsonian Institution * | USA | |
| 9 (983) | National Aeronautics and Space Administration * | USA | |
| 10 (1065) | National Oceanic and Atmospheric Administration | USA | |
| 11 (1110) | U.S. Army * | USA | |
| 12 (1438) | Oak Ridge National Laboratory | USA | |
| 13 (1568) | U.S. Air Force | USA | |
| 14 (1983) | Pacific Northwest National Laboratory * | USA | |
| 15 (2385) | US National Science Foundation * | USA | |
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