| 1 (137) | Cary Institute of Ecosystem Studies | USA |  |
| 2 (150) | Woods Hole Oceanographic Institution | USA | |
| 3 (173) | Carnegie Institution for Science * | USA | |
| 4 (208) | Simons Foundation | USA | |
| 5 (250) | Institute for Advanced Study | USA | |
| 6 (256) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 7 (257) | Wildlife Conservation Society USA | USA | |
| 8 (259) | Universities Space Research Association | USA | |
| 9 (309) | SRI International | USA | |
| 10 (313) | Southwest Research Institute | USA | |
| 11 (375) | Marine Biological Laboratory | USA | |
| 12 (380) | SETI Institute | USA | |
| 13 (405) | Space Science Institute | USA | |
| 14 (419) | University Corporation for Atmospheric Research | USA | |
| 15 (429) | Desert Research Institute, Reno | USA | |
| 16 (442) | Planetary Science Institute | USA | |
| 16 (442) | Gemini Observatory | USA | |
| 18 (455) | Monterey Bay Aquarium Research Institute | USA | |
| 19 (482) | California Academy of Sciences | USA | |
| 20 (531) | Electric Power Research Institute | USA | |
| 21 (548) | National Institute of Aerospace | USA | |
| 22 (561) | Battelle Memorial Institute * | USA | |
|
