Company Heinz Krumme GmbH & Co. Heinz Krumme established KG in Berlin in 1949, specializing in the manufacture of injection molds and small-scale mechanical production for plant construction. From 1980 on, Horst Hölbüng oversaw the replacement of outdated milling, drilling, and turning machines in a newly constructed manufacturing facility with cutting-edge CNC machining centers and lathes.

Sven Hölbüng assumed control of the businesses in the third generation with the establishment of SH-Zerspanungstechnik and the acquisition of a new manufacturing site in Kühnemannstraße in 2000. The sons Nils and Lennart Hölbüng have now assumed control of the administration of NLS Machining GmbH, which was established in 2020, making the family-run group of businesses in