DPZ - German Primate Center

IPB - Bogor Agrigultural University (IND)

PASIH - Perkumpulan Siberut Hijau (IND)

Macaca Nigra Project (IND)

Georg-August Universität Göttingen (GER)

Centre for Nature Conservation, Göttingen University (GER)

Anthropological Institute & Museum, Universität Zürich (CH)

UNESCO - Jakarta Office (IND)

Conservation International Indonesia

Ministry of Forestry Indonesia

Association Planete Urgence

International Primatological Society

Flora & Fauna International

IUCN - World Conservation Union / Red List

IUCN/SSC Primate Specialist Group