Partners & Collaborators GeoSUN has a long collaborative history with Solargis on various projects. GeoSUN is a reseller of Solargis products and services. GeoSUN collaborates with CRSES on solar measurement projects like SAURAN. GeoSUN is a Campbell Scientific product reseller and collaborates closely with the Campbell Scientific group on various projects. On all our PV module testing projects GeoSUN collaborates closely with PVinsight.GeoSUN is a member of STERG and collaborates on solar measurements for CSP projects. GeoSUN is the African distributor for MBJ equipment which includes mobile PV test labs and mobile EL systems.