The SOMMER Group is comprised of SOMMER Antriebs- und Funktechnik GmbH, Triebenbacher Betriebsgesellschaft mbH, APERTO Torantriebe GmbH, Groke Türen GmbH, metaku Metall- und Kunststoffbau GmbH, as well as DOCO International B.V.

We are active worldwide thanks to our branch offices and representatives. Over 700 employees ensure that the SOMMER Group is successful and continues to expand.

Together we are strong,
together we are successful,
together we shape the future.

You can learn more about the SOMMER Group philosophy & values in our Company guidelines.

SOMMER Antriebs- und Funktechnik GmbH

Your expert for operator and radio technology, with innovative technologies and a top-class range of products that is continuously being honed. SOMMER offers operator and radio automation solutions allowing you to open and close garage doors, gates, entrance gates and buildings via remote control. For precision, efficiency and convenience.

DOCO International B.V.

Your all-round experts for door systems and door components for industrial and private applications. DOCO has formed part of the SOMMER Group since October 2013. The logistics, production, administration and development of software and systems are based at the main location in Sittard,  the Netherlands.

Groke Türen GmbH

Your experts for front doors made of aluminium – Groke Türen GmbH has formed part of the SOMMER Group since 2004. These front doors are hard to beat when it comes to design, strength, security and durability. All Groke products are of a premium quality that impresses architects, planners and house owners alike. Made in Germany.

metaku Metall- und Kunststoffbau GmbH

Your expert for the production of front door panels. metaku Metall- und Kunststoffbau GmbH, based in Breuna, has formed part of the SOMMER Group since August 2019. In addition to panel construction, in particular the production of plastic panels, metaku is also a secondary brand for front doors with their own design.

APERTO Torantriebe GmbH

The professionals for door operators in the specialist DIY trade and, for many years now, a leading manufacturer of radio-controlled and automated concepts which are well-established in the DIY segment of the specialist trade.

Triebenbacher Betriebsgesellschaft mbH

Triebenbacher has, for more than eighty years, been the German company in the field of metals for buildings. Triebenbacher products can be found in some of the most beautiful buildings and many public places throughout the world. Triebennbacher has formed part of the SOMMER Group since May 2020. The product range includes: Glass technology, stainless steel, wrought iron, gates and components, drive technology, barriers, radio technology, biometrics, smarthome, doors, canopies, letterboxes and parcel boxes.