| 1 (95) | National Bureau of Economic Research | USA |  |
| 2 (229) | Institut Zur Zukunft der Arbeit | DEU | |
| 3 (309) | Centre for Economic Policy Research | GBR | |
| 4 (457) | CESifo Group | DEU | |
| 5 (504) | World Bank, United States | USA | |
| 6 (660) | UNU Maastricht Economic and Social Research Institute on Innovation and Technology | NLD | |
| 7 (666) | Institute for Systems and Computer Engineering, Technology and Science | PRT | |
| 8 (769) | International Monetary Fund | USA | |
| 9 (944) | Centres de Recerca de Catalunya * | ESP | |
| 10 (1368) | Organisation for Economic Co-operation and Development France | FRA | |
| 11 (1614) | RAND Corp | USA | |
| 12 (1721) | Instituto de Telecomunicacoes | PRT | |
| 13 (1802) | Instituto de Engenharia de Sistemas e Computadores * | PRT | |
| 14 (1843) | Fondazione Bruno Kessler | ITA | |
| 15 (1988) | Eurecat Centre Tecnologic de Catalunya * | ESP | |
| 16 (2066) | Instituto de Engenharia de Sistemas e Computadores de Coimbra | PRT | |
| 17 (2305) | Flanders Make | BEL | |
| 18 (2350) | Instituto de Engenharia de Sistemas e Computadores - Investigacao e Desenvolvimento | PRT | |
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