From the mechanic business…
… up to a medium-sized industrial company
From the modest beginnings in 1922, a medium-sized company group with more than 350 employees and 25,000 square meters of production has developed. The size may have changed, the values remain the same:
Dietz as a family company stands for reliability, customer orientation and top quality.
And even as a 100-year-old company, we are not sluggish and boring at all:
Running innovation and flexibility are anchored in our corporate culture.
Convince yourself!


1988 Acquisition of ESGE shares Neuffen Dietz Group -  later Dietz Elektronik.

1989 Merger of Dietz-Metall plastic injection molding and ESGE.

1990 Relocation of these plants into a new building to Heroldstatt.

1991 Combination of the plastic injection molding plant by Walter Schmid and Dietz into a legally independent plastics company from Dietz.



70 employees

Manufactures exclusive leather parts for the interiors of leading automative manufacturers as well as plastic injection molded parts for a wide range of applications.


DIETZ technoplast GmbH & Co. KG 
Gewerbestr. 14
72535 Heroldstatt
Mr. Walter Schmid
phone.: +49 (0) 7389 / 9097 - 0
fax : +49 (0) 7389 / 9097 - 70


350 employees

In 1922 laid Adolf Dietz the foundation for today´s DIETZ Group.

With Dietz-engines and Dietz-technoplast we produces at four locations in Dettingen/Teck and Heroldstatt innovative solutions where the customer is on the focus. We believe in the long term and we are committed to our responsibility for the region, our employees and the environment.


Eisenbahnstr. 67
73265 Dettingen/Teck
phone.: +49 (0) 7021 / 5702 - 0
fax : +49 (0) 7021 / 5702 - 64

270 employees

As a leading engine and fan manufacturer, offers sophisticated drive solutions for international customers. Our state-of-the-art technological products fulfill the highest demands on quality, energy efficiency and longevity.


DIETZ motoren GmbH & Co. KG
Eisenbahnstr. 67
73265 Dettingen/Teck
Herr Robert Kittel
phone.: +49 (0) 7021 / 5702 - 0
fax : +49 (0) 7021 / 5702 - 64