INSTITUTO GEOGRÁFICO PORTUGUÊS
IUGG - International Union of Geodesy and Geophysics
EUREF - European Reference Frame
ICA - International Cartographic Association
EUROGEOGRAPHICS - Association of the European National Mapping Agencies
DIGSA - Diretores dos Institutos Geográficos da América do Sul, Espanha e Portugal
EARSel - European Association of Remote Sensing Laboratories
EUROGI - European Umbrella Organisation for Geographic Information
EuroSDR - European Spatial Data Research and beyond
GISIG - Geographical Information Systems International Group
GMES - Global Monitoring for Environment and Security
CILPAN - Centro Internacional de Luta contra a Poluição do Atlântico Nordeste
ESEAS - European Sea Level Service