Audiovision

ATEL
Bochum Clinical Center
Eurogress Aachen
Hamm-Lippstadt University of Applied Sciences
Planbar 4/Beck Furnishing and Equiping
Rhein-Waal University of Applied Sciences
Salzgitter AG
Stadtwerke Duisburg AG
Stadtwerke Essen AG
University Hospital Muenster
WAZ/Funke Mediengruppe/Media House