| 501 (4830) | Leibniz Institut fur Zoo- und Wildtierforschung Berlin | DEU |  |
| 502 (4859) | Landcare Research | NZL | |
| 503 (4911) | Centro de Investigacion en Materiales Avanzados | MEX | |
| 504 (4962) | Hyogo Cancer Center | JPN | |
| 505 (4996) | Institute of Vertebrate Biology of the ASCR | CZE | |
| 506 (5034) | Centro de Investigaciones Biologicas del Noroeste | MEX | |
| 507 (5048) | Eusko Jaurlaritza Alaba | ESP | |
| 508 (5051) | Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias * | MEX | |
| 509 (5105) | Instituto Potosino de Investigacion Cientifica y Tecnologica | MEX | |
| 510 (5121) | Centro de Investigacion Cientifica de Yucatan | MEX | |
| 511 (5244) | Instituto de Ecologia AC | MEX | |
| 512 (5398) | Institute of Catalysis and Surface Chemistry Polish Academy of Sciences | POL | |
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