| C.D. Wälzholz GmbH & Co. KG | Electrical steel manufacturer, NO sheets |
| ThyssenKrupp Steel AG |
Electrical steel manufacturer, NO/GO sheets |
| Surahammars Bruk AB |
Electrical steel manufacturer, NO/GO sheets |
| ArcelorMittal | Electrical steel manufacturer, NO sheets |
| Vacuumschmelze GmbH & Co. KG | Manufacturer of special magnetic materials and products
made from these materials |
| SWD Schweisswerk AG | Highly specialised in the welding of stacks for motors and transformers in large and small series |
