Rock-solid Geoscience and Software Solution. Founded in May 2011, Terranum Sàrl develops rock-solid expertise for natural hazards, geology, hydrology, GIS, 3D measurements, and customized software for the geoscience community. All Terranum’s partners come from the Institute of Earth Sciences at the University of Lausanne. As universitary spin-off, the constant research of advanced and original solutions are fully embedded in Terranum’s genes.