We are specialized in development
accompanying battery tests

Green Testing Lab

We are a high technology testing laboratory with focus on development of battery test rigs and battery testing. The company was founded in 2020 by Max Hofer. In the begin of 2023 the company moved to the new site in Greinbach.


 Press & Downloads
Grünes GTL Gebäude mit bunter Blumenwiese davor und GTL Firmenauto links daneben


We want to support you and share our experience with you. Do you need something special or have any questions? Get in touch with us.


As a small company, we are able to meet customer needs flexibly and respond quickly to project changes.

Customized solutions

Do you have special requests? We will create the right test concept for you.

Good accessibility

For specific questions, you can contact the expert of Green Testing Lab directly. Max Hofer: +43 664 16 25 780

No overpromising

We keep our promises. We welcome you as our customer now and would like to continue working with you in the future. Communication is the key to customize our service exactly to your needs.

Let us know your needs

We want to make the process as pleasant as possible for you with tests customized to your needs. Let us know your requirements as precisely as possible.

More information needed?
Feel free to contact us.
Arrow Icon Get in touch with us
Seitliche Ansicht von außen der Stadtpfarrkirche Hartberg
About Hartberg

The economic region Hartberg is a good place to work and a great place to live. Surrounded by a beautiful landscape, there is something for everyone in the region, from gourmets to sports enthusiasts. Together with the excellent infrastructure, this diversity ensures an incomparable quality of life. Through the sights and opportunities in and around Hartberg, a region is created that invites you to live and work.