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BERNSTEIN AG: Employees in production at the Hille site.

We protect people and machines

BERNSTEIN AG is a leading supplier of industrial safety and enclosure technology. We have combined these competences in the DETECT and PROTECT divisions. Our product portfolio ranges from switches, sensors and enclosures to support systems and operating terminals to system solutions for operating and safeguarding entire machines and systems. In this way, we can optimally support you as a customer in the implementation of your Smart Factory.

In our daily work, we always have one goal in mind: to protect people, machines and processes in the best possible way!


Years of experience


Production sites

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A family business since the beginningOur story

Hans Bernstein founded the company "BERNSTEIN Spezialfabrik für Schaltkontakte" in 1947 at the foot of the Kaiser Wilhelm monument in Porta Westfalica. Today, the East-Westphalian BERNSTEIN AG employs more than 600 people in 10 countries and, as an internationally active family business, is already managed in the 3rd generation by Nicole and Achim Bernstein, the grandchildren of the founder.

Learn more about our company history here, which already begins before 1947, and why a train breakdown had a decisive influence on the foundation.

learn more about the history

A powerful partnerWhat makes us different

75 years experience

Started in 1947 as a "special factory for switch contacts", BERNSTEIN AG is now a leading supplier of industrial safety and enclosure technology.

4 manufacturing locations

We now manufacture our products at four locations worldwide. Two of them are in Germany and one each in Hungary and China.

Family-owned company

BERNSTEIN AG has always been a family business. Today, 75 years after the company was founded, it is managed by the 3rd generation.


We already have many measures to reconcile family and career. For this commitment, we were awarded the title "Family-friendly company in the district of Minden-Lübbecke 2023".

Modern machinery

At the Hartum site, a modern machine park supports us in the manufacture of our products. This makes production even more efficient and flexible.

High quality products

Our products are manufactured to the highest quality standards and carefully checked and tested in our own development department.

Customised solutions

In addition to our standard products, we also offer you individual solutions. These are precisely matched to your requirements and machine.


We attach great importance to acting and doing business in a sustainable manner. That is why we are regularly certified according to DIN standards and take measures to protect the climate and the environment.

Our passion:Safety for people and machines

BERNSTEIN safety technology: A SRF safety sensor monitors a safety gate.

Safety technology

Our large selection of switches and sensors allows almost any application. The range extends from insulated or metal-enclosed limit switches to foot switches and safety switchgear.

With our system solutions such as the SMART Safety System, we also offer you scalable solutions for safeguarding complete machines and plants.

BERNSTEIN enclosure technology: An employee manufacturing an enclosure.

Enclosure technology

We create space for your visions. Our PROTECT team implements superior enclosure technology for the encapsulation of diverse applications with modern and variable support systems..

A wide range of terminal boxes made of aluminium and plastic, as well as the wiring and circuitry of standard and control enclosures according to customer specifications complete the product portfolio.

Our responsibility:Act and manage sustainably

We have had a certified quality management system in accordance with DIN EN ISO 9001 since 1996.
In 2016, our environmental management system was also certified according to DIN EN ISO 14001.

In addition to this, we have committed to a number of measures to save emissions and resources and close loops. Learn more about our sustainability strategies.

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Our promise:Produced to the highest quality standards


BERNSTEIN Production: Employees at a C14 machine in the production

We are an internationally operating company

We manufacture our products for you at 4 production sites worldwide. Our sales network now consists of a total of 8 subsidiaries and 34 distributors around the globe who represent the BERNSTEIN brand.

Learn more about the locations

BERNSTEIN Career: An employee scans goods in production.

Safety starts with teamwork

Working at BERNSTEIN

We do not stand still, but continue to grow. That is also why we are constantly looking for new colleagues. 

No matter in which department – exciting new tasks are always waiting for our colleagues.