CASTEON
International system supplier of metal components

At a glance
Full service – from concept to delivery
As an international system provider and partner across the entire value chain, CASTEON develops cast and forged components as well as complex parts made from stainless steel and aluminum.
CASTEON handles all aspects of the process – from development through sourcing, quality management, logistics and assembly right through to after-sales service – and delivers tailor-made solutions for various industries.
With over 30 years of experience and extensive manufacturing expertise, CASTEON stands for the highest quality and reliability, as well as comprehensive engineering expertise in process engineering and material selection, ensuring the smooth implementation of complex requirements.
A global procurement network based on long-term partnerships ensures stable supply capabilities and the efficient implementation of even the most demanding projects, whilst guaranteeing consistent alignment with the requirements of international markets.
The company’s profile

| 2025 sales (in € millions) | 17.4 |
|---|---|
| Staff (31.12.2025) | 28 |
| GESCO SE shareholding | 100 % |
| Member of the GESCO Group since | 1996 (Doerrenberg) |
Contact
CASTEON
Dörrenberg Edelstahl GmbH
Kaiserstrasse 100
51643 Gummersbach

Marc Breidenbach
Managing Director



