| 1 (2) | National Aeronautics and Space Administration * | USA |  |
| 2 (24) | NASA Langley Research Center | USA | |
| 3 (28) | Jet Propulsion Laboratory | USA | |
| 4 (42) | NASA Ames Research Center | USA | |
| 5 (45) | U.S. Air Force | USA | |
| 6 (91) | Glenn Research Center | USA | |
| 7 (261) | Sandia National Laboratories, New Mexico | USA | |
| 8 (339) | U.S. Army * | USA | |
| 9 (367) | National Renewable Energy Laboratory | USA | |
| 10 (379) | NASA Goddard Space Flight Center | USA | |
| 11 (388) | Sandia National Laboratories, California | USA | |
| 12 (405) | NASA Marshall Space Flight Center | USA | |
| 13 (426) | Oak Ridge National Laboratory | USA | |
| 14 (452) | National Research Council Canada * | CAN | |
| 15 (454) | NASA Johnson Space Center | USA | |
| 16 (546) | Argonne National Laboratory * | USA | |
| 17 (606) | US Naval Research Laboratory | USA | |
| 18 (811) | Los Alamos National Laboratory * | USA | |
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