Member: IHK Arnsberg / Arnsberg Chamber of Industry and Commerce, Hellweg-Sauerland More about member
Member: IHK Essen / Chamber of Industry and Commerce for Essen, Mülheim a.d Ruhr, Oberhausen zu Essen More about member
Member: IHK Flensburg / Chamber of Industry and Commerce of Flensburg, Kiel and Lübeck More about member
Member: IHK Bielefeld / East Westphalia Chamber of Industry and Commerce in Bielefeld More about member