1 (375) | Educational Testing Service | USA | ||
2 (393) | RAND Corp | USA | ||
3 (700) | United Nations International Children's Emergency Fund, United States | USA | ||
4 (889) | Haskins Laboratories | USA | ||
5 (1055) | SRI International | USA | ||
6 (1311) | Santa Fe Institute | USA | ||
7 (1537) | World Bank, United States | USA | ||
8 (1674) | Regenstrief Institute | USA | ||
9 (1889) | Canadian Institute for Advanced Research | CAN | ||
10 (2635) | Walter Reed Army Institute of Research * | USA | ||