The Danish company Gemina Termix A/S is based in Sunds and has since the launching of the Termix 20 hot water system in 1986 been in constant development and growth. Today they are market leaders in the field of hot water systems and heat exchangers for houses and apartments. The company has about 50 employees. Danfoss District Heating Controls took over Gemina Termix A/S in January 2004.