The administrative headquarters of the Mühle Rüningen Stefan Engelke GmbH is Salzgitter-Ringelheim, a small city about 50 kilometers south of Hanover.

This location is situated close to wheat growing regions that are among the largest and qualitatively most superior in all of Europe.

The mill in Ringelheim was first mentioned in 1460. Since Stefan Engelke took ownership in 1989, the milling capacity was extended continuously.