motorway 45, exit Siegen-Netphen, distance from the motorway to Siegen: 1 km. In Siegen follow the street Eiserfelder Straße up to the IHW-Park. There go to the T-building, 3rd floor.

• Köln/Bonn (distance: 80 km)
• Dortmund (distance: 90 km)
• Frankfurt/Main (distance: 130 km).