| 1 (290) | National Aeronautics and Space Administration * | USA |  |
| 2 (429) | Oak Ridge National Laboratory | USA | |
| 3 (439) | Lawrence Berkeley National Laboratory * | USA | |
| 4 (455) | Argonne National Laboratory | USA | |
| 5 (506) | National Institute of Standards and Technology * | USA | |
| 6 (596) | Pacific Northwest National Laboratory | USA | |
| 7 (598) | United States Department of Agriculture | USA | |
| 8 (616) | NASA Ames Research Center | USA | |
| 9 (637) | Los Alamos National Laboratory * | USA | |
| 10 (641) | Sandia National Laboratories, New Mexico | USA | |
| 11 (652) | U.S. Army * | USA | |
| 12 (679) | Lawrence Livermore National Laboratory * | USA | |
| 13 (757) | National Renewable Energy Laboratory | USA | |
| 14 (910) | U.S. Air Force | USA | |
| 15 (948) | Jet Propulsion Laboratory | USA | |
| 16 (979) | NASA Marshall Space Flight Center | USA | |
| 17 (1094) | United States Geological Survey | USA | |
| 18 (1202) | NASA Langley Research Center | USA | |
| 19 (1248) | NASA Goddard Space Flight Center | USA | |
| 20 (1300) | US Food and Drug Administration | USA | |
| 21 (1476) | U.S. Department of Energy * | USA | |
| 22 (1539) | Brookhaven National Laboratory * | USA | |
| 23 (1604) | US Naval Research Laboratory | USA | |
| 24 (1620) | Sandia National Laboratories, California | USA | |
| 25 (1638) | SLAC National Accelerator Laboratory | USA | |
| 26 (1737) | Smithsonian Institution * | USA | |
| 27 (2079) | Idaho National Laboratory | USA | |
| 28 (2088) | National Oceanic and Atmospheric Administration | USA | |
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