| 1 (225) | Ontario Institute for Cancer Research | CAN |  |
| 2 (600) | National Bureau of Economic Research | USA | |
| 3 (739) | Carnegie Institution for Science | USA | |
| 4 (765) | Santa Fe Institute | USA | |
| 5 (820) | Institute for Advanced Study | USA | |
| 6 (861) | American Institute of Aeronautics and Astronautics | USA | |
| 7 (909) | Bill and Melinda Gates Foundation | USA | |
| 8 (1113) | SRI International | USA | |
| 9 (1153) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 10 (1218) | Woods Hole Oceanographic Institution | USA | |
| 11 (1299) | Marine Biological Laboratory | USA | |
| 12 (1373) | Regenstrief Institute | USA | |
| 13 (1429) | Perimeter Institute for Theoretical Physics | CAN | |
| 14 (1538) | RAND Corporation | USA | |
| 15 (1609) | SETI Institute | USA | |
| 16 (2107) | Louisiana State University Agricultural Center | USA | |
| 17 (2139) | Wildlife Conservation Society USA | USA | |
| 18 (2365) | Planetary Science Institute | USA | |
| 19 (2602) | Desert Research Institute, Reno | USA | |
| 20 (2647) | Universities Space Research Association | USA | |
| 21 (2663) | International Monetary Fund | USA | |
| 22 (2685) | Battelle Memorial Institute | USA | |
| 23 (2972) | Southwest Research Institute | USA | |
| 24 (3820) | Electric Power Research Institute | USA | |
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