About WTW

WTW electronic GmbH (LLC) was founded in December 2004. From the beginning, the company’s focus was on the development of control systems for the fields of mobile electronics for commercial vehicles and alternative energy. We develop and produce both the hardware and the software for these systems. Our customers include OEMs and resellers in Central Europe.

Individual development

Pioneers and visionaries are in the right hands with us: Starting from WTW standard systems, we take into account individual customer requirements and convert them into customised products.

A large and mature technology pool enables us to design new systems that have already been tested in tough industrial applications.

A one-stop shop

We develop, produce and deliver the products in the required quantity. This ensures the highest quality standards throughout the entire process, from development to the finished product.


Dipl. Ing. Friedrich Kolmayr
Managing Partner

Friedrich Kolmayr has over 30 years of experience in the field of industrial electronics. In recent years, he has shifted his focus to commercial vehicles and alternative energy, in addition to managing various companies. Here he has been able to gather important knowledge through intensive research in the field of technology, which is now being implemented in our products.

Dipl. Ing. Oliver Hager
Managing Partner

After his studies at TU (Technical University) Graz, Oliver Hager joined WTW in 2004. He is Head of Development and responsible for customer projects. In addition, he has been the Managing Director at our company since 2018.

Dipl.-Ing. Stephan Metz
Branch Manager Germany and Authorised Representative

Our locations

Company headquarters and logistics centre:

WTW electronic GmbH

ReininghausstraƟe 13/11,
8020 Graz, Austria

Tel.: +43-316-890307
Fax : +43-316-89030715
E-mail :

Germany branch:

WTW electronic GmbH Germany Branch

Innere Ortsstrasse 11,
99438 Troistedt, Germany

Tel: +49-3643-8148849
E-mail :

You can rely on us and our partners



We are professionals in the fields of commercial vehicles, alternative energy and special electronics.



The components of our technology pool have been in industrial use for years.



We develop the hardware and software, produce and deliver on time, and our products are 100% output tested.


WTW IOT linkbox System

Go online – your machine already is!

Display monitoring, evaluations and remote maintenance in real time and make modifications if necessary – all conveniently via the Internet using the online portal.

IoT: Not only analyse data but use it2021-02-09T09:52:46+01:00

Optimise routes, reduce energy consumption or perform updates: The WTW IoT Connect System is a complete IoT solution for machines and commercial vehicles that enables concrete improvements. Friedrich Kolmayr is convinced that it is not enough to create ā€œonlyā€ a beautiful graphic from the collected data.

Available worldwide, mobile connection2021-02-09T09:52:30+01:00

The mobile data connection is established worldwide, no matter where the machine is located. The only requirement is the presence of a mobile phone connection. The machine connects to the cloud storage and the portal via a mobile data connection. This means that no stationary cabling is required.

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