1 (244) | Educational Testing Service | USA | ||
2 (1057) | RAND Corp | USA | ||
3 (1104) | Institut Zur Zukunft der Arbeit | DEU | ||
4 (1164) | SRI International | USA | ||
5 (1517) | Institute for Systems and Computer Engineering, Technology and Science | PRT | ||
6 (1527) | Center for Health Technology and Services Research | PRT | ||
7 (1783) | United Nations International Children's Emergency Fund, United States | USA | ||