The company ELK sells prefabricated huoses (energy-saving houses and passive houses) as well as log houses produced in its factory. The building services are already installed in the walls, ceiling etc. in high prefabrication level. The houses are completed on site by ELK installers. The core markets of ELK are Austria, Germany, Switzeland and Czech Republic, however ELK has 14 licence partners in 12 countries.