| 1 (253) | National Bureau of Economic Research | USA |  |
| 2 (519) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 3 (529) | Carnegie Institution for Science | USA | |
| 4 (544) | Institute for Advanced Study | USA | |
| 5 (696) | American Institute of Aeronautics and Astronautics | USA | |
| 6 (864) | RAND Corporation | USA | |
| 7 (888) | Cary Institute of Ecosystem Studies | USA | |
| 8 (890) | Woods Hole Oceanographic Institution | USA | |
| 9 (932) | Santa Fe Institute | USA | |
| 10 (935) | The EARLY Program Mind Research Network | USA | |
| 11 (1031) | Regenstrief Institute | USA | |
| 12 (1089) | SETI Institute | USA | |
| 13 (1277) | SRI International | USA | |
| 14 (1329) | Marine Biological Laboratory | USA | |
| 15 (1573) | Monterey Bay Aquarium Research Institute | USA | |
| 16 (1697) | Planetary Science Institute | USA | |
| 17 (1765) | Space Science Institute | USA | |
| 18 (1800) | Wildlife Conservation Society USA | USA | |
| 19 (1839) | International Monetary Fund | USA | |
| 20 (1886) | Bill and Melinda Gates Foundation | USA | |
| 21 (2082) | Universities Space Research Association | USA | |
| 22 (2151) | Desert Research Institute, Reno | USA | |
| 23 (2847) | Louisiana State University Agricultural Center | USA | |
| 24 (2932) | Southwest Research Institute | USA | |
| 25 (3636) | California Academy of Sciences | USA | |
| 26 (3736) | Battelle Memorial Institute | USA | |
| 27 (4434) | Electric Power Research Institute | USA | |
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