Founded in 1971, Geosonda is one of the main pioneers in soil mechanics in Belgium. In recent times Geosonda has evolved into a multidisciplinary soil investigiation company, offering a broad range of highly specialised techniques for Geotechnical, Environmental and Archaeological study and engineering. All types of subsurface investigation like drilling, sampling, CPT and geophysical survey are performed by a highly qualified staff and modern equipment. We operate mainly in Belgium, The Netherlands and France, but are also able to be fast on site further abroad. Next to its main activitis, Geosonda offers soil investigation related topographic services by drone, like: * ortophotography for better project planning and simplifying CAD design; * digital cartopgraphy; * 3D mapping of sites; * volume measurments for stockpiles, excavation,..