 In the following decades, the plant near the Cologne-Minden train station in Bielefeld was expanded to include several production facilities.For over 100 years – until 1976 - the company was based across the street from the main railroad station, where the hotel Bielefelder Hof and the municipal exhibition hall are now situated.Gildemeisterstraße 60 in Bielefeld has since become the group’s headquarters.