About the SOMMER Group

Since October 2013 DOCO International is proud member of the SOMMER Group. Next to DOCO International B.V., the globally active SOMMER Group includes SOMMER Antriebs- und Funktechnik GmbH, Groke Türen und Tore GmbH and APERTO Torantriebe GmbH.


DOCO International B.V.
Nusterweg 96
6136 KV Sittard
T: +31 46 4200666

SOMMER Antriebs- und Funktechnik GmbH
Hans-Böckler-Str. 21-27
D-73230 Kirchheim/Teck
T: +49 7021 8001-0



Groke Türen und Tore GmbH
Wikinger Str. 10
D-76189 Karlsruhe
T: +49 721 5982-0

APERTO Torantriebe GmbH
Hans-Böckler-Str. 29
D-73230 Kirchheim/Teck
T: +49 7021 9447-0

The SOMMER Group is represented with its own subsidiaries and branches.



The SOMMER ZEITung is our corporate magazine which introduces the product innovations and technologies in the world of doors, gates, barriers, and operator and radio control systems. 

The most recent SOMMER ZEITung can be found here:
  SOMMER Zeitung



Goals and Tasks

The goals and tasks of the SOMMER Group can be downloaded here as a PDF presentation (in English):  (595 KB)
  Goals and Tasks

Company Directives

The company directives of the SOMMER Group can be downloaded here as a PDF document (in English):  (3,8 MB)
  Company Directives