SONNENKRAFT® is a part of SolarCAP which comprises a number of companies: General Solar Systems (whose product brand is SONNENKRAFT), ARCON Solar, Heliodyne Corporation, GREENoneTEC Solarindustrie and EMMVEE Solar Systems. The companies develop, manufacture and market solar thermal energy systems and other energy-saving solutions.

SolarCAP is owned by VKR Holding, which is one of Denmark's largest and most respected industrial investors, as well as owner and developer of companies that bring daylight, fresh air and a better environment into people's everyday lives. The VKR Group employs around 14,000 people.