The scientific partners of IINAS in carrying out joint projects and activities are
- in Germany: CESR, DBFZ, Ecologic Institute, Fraunhofer-UMSICHT, IFEU, IZES, Oeko-Institut
- in Europe: Alterra (NL), CRES (GR), ECN (NL), Ecoinstitut Barcelona (ES), ESU services (CH), IDDRI (FR), IIASA (AT), Imperial College (UK), Joanneum Research (AT), SEI (SE), VITO (BE)
- international: INTA (AR), CENBIO (BR), JGSEE-CEE (TH), ISEP (JP), TERI (IN) and Tellus (US)
Further collaboration exists with universities, e.g. Bologna (IT), Campinas (BR), Leuphana (DE), Tsinghua (CN), Utrecht (NL), Vienna (AT) as well as European institutions (EEA, EFI, JRC) and international organizations (FAO, HELIO, IEA, IRENA, IUCN, OECD, REN21, UNEP, UNEP-WCMC, UNIDO).