HC Groep, an HVAC systems manufacturer, completed the acquisition of Rosenberg Ventilatoren, a manufacturer of energy efficient motors, fans and air handling units. Financial terms were not disclosed. "We are enthusiastic about the fit between HC Groep and Rosenberg Ventilatoren. Our vision of the future market and the role of innovative, sustainable air treatment systems fit together seamlessly. With the arrival of Rosenberg, we welcome a leading producer with a unique and complementary product range within our group," Ron van Kan, HC Groep CEO.