Scarab Development AB was established 1973 and is the origin of a cluster of companies. HVR Water Purification was established 1996 as a spin-off from Scarab with the purpose of providing drinking water from different sources of non-potable water. Since 2017 WaterApp is a project within HVR partly financed by the EU program Horizon 2020. HVR licences the core technology from Scarab Development. Xzero, another spin-off was established in 1997, with a license from Scarab Xzero produces and provides the nanotechnology sector, such as the semiconductor industry, with the highest quality of Ultrapure Water (UPW – Type1). Xzero and HVR are both unlisted companies owned by a few thousand private shareholders.