- A portrait of GDH
Metal processing at its best
GDH Metallverarbeitung GmbH was founded in 1996 by the brothers Gerhard and Detlef Hölper and is a medium-sized, family-run company with a passion for precision. Thanks to decades of experience, we offer our customers around the world outstanding expertise and diversity in the field of metal processing.
Our core competencies include the economical and efficient production of tool-bounded stamped and formed parts, sheet metal processing, machining and welding technology.
Additionally, we develop and produce individual solutions for modern manufacturing technologies — from prototypes to series production tools. We also manufacture fixture constructions and auxiliary facilities.
With innovative machinery and tools, we shape metal into tailor-made components. Our solution-oriented team works with full dedication – from the concept development and production to the final part. This enables us to ensure high flexibility and fast response times for you.

We also develop and produce individual solutions for state-of-the-art production technologies in our in-house tool shop, from prototypes to series tools. We also manufacture devices and auxiliary equipment.
We use innovative machines and tools to shape metal into customized components. Our solution-oriented team is passionate about everything from design and production to the final component ready for delivery. This enables us to ensure greater flexibility and fast response times for you.
Furthermore, we guarantee on-time delivery combined with high quality in small and medium quantity ranges. Due to our growing machine park and increasing automation, also larger quantities can be easily realized.
We ensure these high-quality standards through our certifications according to DIN EN ISO 9001:2015 and 14001:2015, as well as welding process certifications for our customers.
Our experience, teamwork, and passion for quality and our products are evident in every thousandth of a millimeter.
Thinking in µ is our promise to you!

Are you looking for a reliable supplier? Then don’t hesitate to contact us! At our production plant experienced, motivated, and highly qualified employees are eager to work with you and bring your vision to life!
- Exhaust technology
- Agricultural machinery
- Food
- Medical technology
- Measurement and control technology
- Furniture production
- Steel industry
- Defense technology
- And many others
- Our motto
When quality and precision count,
we are the experts who can
turn ideas into reality!
When quality and precision count, we are the experts to turn your ideas into reality!