| 1 (230) | Carnegie Institution for Science * | USA |  |
| 2 (344) | National Bureau of Economic Research | USA | |
| 3 (395) | Cary Institute of Ecosystem Studies | USA | |
| 4 (406) | Wildlife Conservation Society USA | USA | |
| 5 (413) | California Academy of Sciences | USA | |
| 6 (433) | Woods Hole Oceanographic Institution | USA | |
| 7 (450) | Universities Space Research Association | USA | |
| 8 (475) | Marine Biological Laboratory | USA | |
| 9 (478) | Santa Fe Institute | USA | |
| 10 (523) | Monterey Bay Aquarium Research Institute | USA | |
| 10 (523) | Desert Research Institute, Reno | USA | |
| 12 (560) | Louisiana State University Agricultural Center | USA | |
| 13 (570) | Southwest Research Institute | USA | |
| 14 (590) | Planetary Science Institute | USA | |
| 15 (632) | Electric Power Research Institute | USA | |
| 16 (635) | University Corporation for Atmospheric Research | USA | |
| 17 (638) | Battelle Memorial Institute * | USA | |
| 18 (652) | Oak Ridge Associated Universities | USA | |
| 19 (654) | RAND Corp | USA | |
| 20 (688) | Space Science Institute | USA | |
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