1. School of Spatial Planning and Development, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. Department of Civil Engineering, Isik University, Sile, Istanbul, Turkey
3. 4DiXplorer AG, Zurich, Switzerland
4. GeoVille Information Systems GmbH, Innsbruck, Austria
5. Chair of Information Architecture, ETH Zurich, Switzerland
6. Ingeniería Y Soluciones Informáticas S.L., Sevilla, Spain
7. GeoImaging Ltd, Nicosia, Cyprus
8. Ekinoks Surveying Software Engineering Ltd, Istanbul, Turkey