Logo Bihl+Wiedemann GmbH

Innovative Partner for Automation

Jochen Bihl and Bernhard Wiedemann


International Subsidiaries and Sales Partners

A combination of innovative strength and long-standing customer relationships has enabled us to grow continuously for many years. In addition to our headquarters in Mannheim, Bihl+Wiedemann owns subsidiaries in the USA, China, Turkey, Denmark and Spain. We are now also represented by international sales partners in more than 30 countries.

We are committed to environmental and climate protection

Reducing CO₂ emissions has never been more important than it is today. We have been covering a large part of our energy requirements with our own solar panels since 2010, and the first electric vehicles have been in use at our company since 2019. To constantly improve our energy efficiency and environmental protection, we also make use of an energy management system that complies with ISO 5001 and an environmental management system that complies with ISO 14001. Solar modules in three systems have a total output of 270 kWp and generate an annual energy volume of 134,000 kWh (2021).


More about our solar power systems

of solar cells are in operation at the Mannheim headquarters on the roofs and facades of our office and production building – the first ones since September 2010.

of power we expect to generate from 2022 and consume a large part of it by ourselves. 260,000 kWh is equivalent to the annual consumption of 1,500 large refrigerators with freezer compartments.

of our car pool  already consists of hybrid or electric vehicles – and the trend is rising sharply. We are also steadily expanding the number of our charging stations (18 vehicules, as of July 2022).

Technological Principles


AS-Interface (ASi) is a globally standardized fieldbus system for the first level of automation. ASi connects sensors and actuators with a controller via a single two-conductor profile cable. The yellow ASi cable transmits power and data at the same time. The main benefits of ASi are, among others, dramatically less wiring, free choice of topology and cost-efficient integration of safety on the same infrastructure. The latest ASi-5 generation can now handle larger data volumes at much higher transmission speeds and it enables intelligent sensors such as IO-Link to be integrated with ease.


More about the AS-Interface

ASi Safety at Work

Safety-related aspects play an important role in an increasing number of automation solutions, especially where hazardous movements pose a safety risk to humans. Regulations in this regard are set out, for instance, in the EU Machinery Directive (Directive 2006/42/EC) or in the occupational safety regulations of the respective countries. Thanks to the Safety at Work concept of the AS-Interface, safety-related components, such as safe sensors and actuators as well as safety monitors, can be seamlessly integrated into almost all commonly used automation systems.


More about ASi Safety at Work

What sets Bihl+Wiedemann apart

Triple ISO certified

Quality management (ISO 9001)

Environmental mgmt (ISO 50001)
Energy management (ISO 14001)

Customized product solutions

Realization of specific automation solutions.

Certified as per DIN EN ISO 9001

Since 2005 we have a quality management system that complies with ISO 9001. It creates transparent processes and forms the basis for continuous improvements in all areas of the company.


Our current certificate for download (pdf)

Certified as per DIN EN ISO 14001

Since 2021 we have an environmental management system that complies with ISO 14001. It defines clear environmental goals, ensures sustainable use of resources, and is key to eliminating environmentally hazardous weaknesses.

Our current certificate for download (PDF) 

Certified as per DIN EN ISO 50001

Since 2021 we have an energy management system that complies with ISO 5001. It helps us to systematically optimize energy efficiency and reduce CO₂ emissions step by step.


Our current certificate for download (pdf)