Your high-performance partner for medium voltage solutions
Dipl. Ing. H. Horstmann GmbH is a medium-sized company based in Heiligenhaus near Düsseldorf (Germany). The company was founded in 1946 by Heinrich Horstmann, and since that time it has been a successful family-owned company. Due to its long experience and continuous investment in research and product development Dipl.-Ing. H. Horstmann GmbH is today recognized as a leading manufacturer in medium voltage technology for:
- Short-circuit and earth fault indicators
- Voltage testers and voltage detecting systems
- Earthing devices and accessories.

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Trade fair dates
Many trade fairs will take place in 2022.