Austria
- Department of Geodesy and Geoinformation, Technische Universität Wien, Wiedner Hauptstraße 8/E120, AT-1040 Vienna
- Federal Office of Metrology and Surveying, Department of Control Survey, AT-Vienna
Finland
- Metsähovi Radio Observatory, Metsähovintie 114, FIN-02540 Kylmälä
- FGI – Finnish Geospatial Research Institute Geodeetinrinne 2, FIN-02430 Masala
France
- Laboratoire d’Astrophysique de Bordeaux 2, rue de l’Observatoire, BP 89 – 33271 Floirac Cedex
- Observatoire de Paris-PSL, 61 avenue de l’Observatoire, FR-75014 Paris
Germany
- Federal Agency for Cartography and Geodesy, Richard-Strauss-Allee 11, DE-60598 Frankfurt am Main
- Federal Agency for Cartography and Geodesy, Geodetic Observatory Wettzell, Sackenrieder Straße 25, DE-93444 Bad Kötzting
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, DE-53121 Bonn
- Forschungseinrichtung Satellitengeodäsie der TU München, Arcisstraße 21, DE-80333 München
- German Geodetic Research Institute, TU München, Arcisstraße 21, DE-80333 München
- GFZ German Research Centre for Geosciences, Telegrafenberg, DE-14473 Potsdam
Italy
- Agenzia Spaziale Italiana, ‘Giuseppe Colombo’, Località Terlecchia, IT-75100 Matera
- INAF – Istituto di Radioastronomia, Via P. Gobetti 101, IT-40129 Bologna
- Politecnico di Milano, Sezione Geodesia e Geomatica, Piazza Leonardo da Vinci 32, IT-20133 Milano
- Telespazio, Via Tiburtina 965, IT-00156 Rome, Italy
- e-GEOS, Località Terlecchie SNC, IT-75100 Matera, Italy
Norway
- Norwegian Mapping Authority, NO-3507 Hønefoss
Spain
- Instituto Geográfico Nacional, C/ General Ibáñez de Ibero 3, ES-28003 – Madrid
- Yebes Obervatory, Cerro del Palera S/N, 19141, Yebes, Guadalajara
- University of Alicante
Sweden
- Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala
- Lantmäteriet – The Swedish Mapping, Cadastral, and Land Registration
Authority, Lantmäterigatan 2C, SE-801 82 Gävle
Switzerland
- Institute of Geodesy and Photogrammetry, ETH Zürich, CH-8093 Zürich
Turkey
- Karadenic Technical University
- Hacettepe University
Ukraine
- Crimean Astrophysical Observatory
- Main Astronomical Observatory