Take the U5, U6 or U7 (in the direction of Möhringen, Leinfelden, Degerloch,
Vaihingen) from the Hauptbahnhof (main railway station) and get off at Olgaeck, which is the 3rd stop.
Exit the underground and head downhill. Go left across the street and turn onto Olgastraße. After 5 minutes' walk, you will find KERN's office on the left-hand side.
From the main railway station: