| 1 (875) | SRI International | USA |  |
| 2 (1300) | Santa Fe Institute | USA | |
| 3 (1529) | International Computer Science Institute | USA | |
| 4 (1583) | American Institute of Aeronautics and Astronautics | USA | |
| 5 (1591) | Louisiana State University Agricultural Center | USA | |
| 6 (1594) | Marine Biological Laboratory | USA | |
| 7 (1631) | Carnegie Institution for Science | USA | |
| 8 (1785) | Battelle Memorial Institute | USA | |
| 9 (2334) | Woods Hole Oceanographic Institution | USA | |
| 10 (2367) | Institute for Advanced Study | USA | |
| 11 (2537) | Electric Power Research Institute | USA | |
| 12 (2583) | Southwest Research Institute | USA | |
| 13 (2588) | Monterey Bay Aquarium Research Institute | USA | |
| 14 (3462) | Regenstrief Institute | USA | |
| 15 (3603) | SETI Institute | USA | |
| 16 (3760) | Desert Research Institute, Reno | USA | |
| 17 (3839) | RAND Corporation | USA | |
| 18 (4071) | Universities Space Research Association | USA | |
| 19 (4307) | National Bureau of Economic Research | USA | |
| 20 (4413) | Educational Testing Service | USA | |
| 20 (4413) | International Monetary Fund | USA | |
| 20 (4413) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 20 (4413) | Perimeter Institute for Theoretical Physics | CAN | |
| 20 (4413) | Wildlife Conservation Society USA | USA | |
|
