| 1 (681) | SRI International | USA |  |
| 2 (873) | Carnegie Institution for Science | USA | |
| 3 (906) | National Bureau of Economic Research | USA | |
| 4 (1578) | Marine Biological Laboratory | USA | |
| 5 (1624) | Institute for Advanced Study | USA | |
| 6 (1693) | Bill and Melinda Gates Foundation | USA | |
| 7 (1741) | Educational Testing Service | USA | |
| 8 (1907) | The EARLY Program Mind Research Network | USA | |
| 9 (2081) | RAND Corp | USA | |
| 10 (2092) | Louisiana State University Agricultural Center | USA | |
| 11 (2130) | Woods Hole Oceanographic Institution | USA | |
| 12 (2185) | Santa Fe Institute | USA | |
| 13 (2248) | International Monetary Fund | USA | |
| 14 (2863) | Battelle Memorial Institute | USA | |
| 15 (2971) | Southwest Research Institute | USA | |
| 16 (3144) | SETI Institute | USA | |
| 17 (3237) | Universities Space Research Association | USA | |
| 18 (3323) | Regenstrief Institute | USA | |
| 19 (3413) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 20 (3470) | Wildlife Conservation Society USA | USA | |
| 21 (3545) | Monterey Bay Aquarium Research Institute | USA | |
| 22 (3598) | Planetary Science Institute | USA | |
| 23 (3604) | Desert Research Institute, Reno | USA | |
| 24 (3917) | Electric Power Research Institute | USA | |
| 25 (4008) | Space Science Institute | USA | |
| 26 (4441) | California Academy of Sciences | USA | |
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