Out of the east along the A4:

Drive along the A4 till motorway interchange Köln-Ost and change to the A3 directed to Frankfurt till motorway interchange Dreieck Heumar. There change to A59 and exit at Köln-Rath/Heumar. Turn off left and at the next traffic lights right into Frankfurter Straße. Three traffic lights later turn right into Hansestrasse and turn right again into the industrial park.   

Out of the west along the A4:

Pass the bridge over the Rhein and change to the A559 directed to Bonn-Beul and the airport till the exit Köln-Porz-Gremberg. Turn to the left into Frankfurter Strasse. At the second traffic light turn to the right into Hansestrasse and turn right again into the industrial park.   

Out of the south along the A3:

Exit the A3 in Köln-Königsforst. Turn to the right into Bensberger Strasse. After 2 km along the Eiler Mauspfad turn to the right into the Hirschgraben ( Porz-Eil ). At the end of the street turn right into Frankfurter Strasse. After crossing the A559 turn to the right at second traffic light into the Hansestrasse. Now turn right into the industrial park.