| 1 (371) | National Aeronautics and Space Administration * | USA |  |
| 2 (493) | National Institute of Standards and Technology * | USA | |
| 3 (551) | NASA Ames Research Center | USA | |
| 4 (564) | National Renewable Energy Laboratory | USA | |
| 5 (622) | Oak Ridge National Laboratory | USA | |
| 6 (646) | Argonne National Laboratory * | USA | |
| 7 (655) | United States Department of Agriculture | USA | |
| 8 (667) | Lawrence Berkeley National Laboratory * | USA | |
| 9 (686) | Sandia National Laboratories, New Mexico | USA | |
| 10 (721) | U.S. Army * | USA | |
| 11 (803) | Pacific Northwest National Laboratory * | USA | |
| 12 (870) | Jet Propulsion Laboratory | USA | |
| 13 (884) | National Energy Technology Laboratory | USA | |
| 14 (944) | Lawrence Livermore National Laboratory * | USA | |
| 15 (1026) | Los Alamos National Laboratory * | USA | |
| 16 (1029) | US Food and Drug Administration | USA | |
| 17 (1119) | NASA Goddard Space Flight Center | USA | |
| 18 (1246) | United States Geological Survey | USA | |
| 19 (1371) | NASA Marshall Space Flight Center | USA | |
| 20 (1427) | U.S. Air Force | USA | |
| 21 (1460) | SLAC National Accelerator Laboratory | USA | |
| 22 (1518) | Smithsonian Institution * | USA | |
| 23 (1619) | Sandia National Laboratories, California | USA | |
| 24 (1632) | NASA Langley Research Center | USA | |
| 25 (1763) | National Oceanic and Atmospheric Administration | USA | |
| 26 (1808) | Brookhaven National Laboratory * | USA | |
| 27 (1857) | U.S. Department of Energy * | USA | |
| 28 (2389) | US Naval Research Laboratory | USA | |
| 29 (2902) | Idaho National Laboratory * | USA | |
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