D

Dipl.-Ing. H. Horstmann GmbH Tech Stack

Medium-voltage testing and monitoring equipment manufacturer in Germany

Appliances, Electrical, and Electronics Manufacturing Heiligenhaus 201–500 employees Founded 1946 Public Company

Horstmann manufactures short-circuit indicators, voltage testers, and earthing devices for medium-voltage applications, built on a .NET/C# stack with SQL Server and Azure cloud infrastructure. Active hiring across engineering and manufacturing signals capacity expansion, while concurrent projects in PLM system implementation, data migration, and security policy rollout indicate operational modernization — the company is wiring together disparate systems and automating test/reporting workflows that were likely manual or legacy.

Tech Stack 17 technologies

Core StackActive Directory SQL Server C# JavaScript Power BI Tableau .NET Microsoft 365 Admin Center Azure Aras Innovator Excel PowerPoint Alteryx LabVIEW TestStand WPF Windows

What Dipl.-Ing. H. Horstmann GmbH Is Building

◆Challenges

Risk reduction
Resilience improvement
Optimierung von beschaffungsprozessen
Implementing plm system
Data migration
System integration
Automating reporting processes
Process optimization in controlling
Automating existing test processes
Introducing new test procedures

▲Active Projects

Kpi development for it/ot system monitoring
Risk and vulnerability analysis to reduce risks
Implementation of security policies and standards
Neumaschinenplanung
Formen- und werkzeugbau
Implementing plm system
Data migration
System integration
Modern reporting system development
Forecasting and budgeting reports

Hiring Activity

Accelerating15 roles · 10 in 30d

Department

Engineering

4

Manufacturing

3

Security

2

Finance

1

Procurement

1

Product

1

Sales

1

Seniority

Mid

7

Junior

3

Senior

2

Manager

1

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About Dipl.-Ing. H. Horstmann GmbH

Dipl.-Ing. H. Horstmann GmbH is a family-owned German manufacturer founded in 1946, headquartered in Heiligenhaus near Düsseldorf. The company specializes in medium-voltage technology products: short-circuit and earth fault indicators, voltage detection systems, and earthing accessories. Operations span both electronics assembly (including own SMD facility) and mechanical production for safety components. Products are sold internationally through a direct sales force and trade agent network. The organization maintains ISO 9001 certification and operates dedicated R&D and testing departments in-house.

HeadquartersHeiligenhaus

Company Size201–500 employees

Founded1946

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does Horstmann use?

Core stack: .NET, C#, SQL Server, Active Directory, Azure. Analytics: Power BI, Tableau, Alteryx. Engineering tools: LabVIEW, TestStand. Office: Microsoft 365. Product data: Aras Innovator PLM system.

What is Horstmann working on?

Current projects include PLM system implementation, data migration, security policy rollout, KPI development for IT/OT monitoring, modern reporting system build, and automation of test and reporting processes.