info(at) +49 (0)89 90 410 20 - 0

About EFR

Brief profile

EFR is a system provider active in the field of energy management in Germany and large parts of central Europe. 

The company, with headquarters in Munich and locations Wutha-Farnroda (Thuringia) and Berlin, was established in 1993 and is a subsidiary of Bayernwerk, N‑ERGIE and Netze BW.  

Under the banner “Future-proof control, metering and communications,” EFR offers package solutions for digital management of smart grids.  

EFR operates a longwave broadcasting system with transmitter facilities at Frankfurt am Main, Magdeburg and Budapest, and controls more than 1.3 million radio receivers. The company currently serves 350 customers in the energy industry.  

Example application areas of the system include feed-in management of renewable energy facilities (Renewable Energy Resources Act), tariff and load control of energy providers, control of public lighting in cities and municipalities, and charging management for e‑mobility. 

Our system solutions

With the expansion of our service offerings over modern communication paths such as public cellular networks, 450 MHz LTE and broadband powerline, EFR creates a seamless transition from conventional control to advanced IP-based, secure and flexible grid management. 

For this we have a generic device platform consisting of modern metering devices, smart meter basic meters, communications adapters, control boxes and EFR smart meter gateways (BSI-DSZ-CC-1000). 

In the future we plan to enhance our expertise as a service provider and offer innovative system solutions from a single source, comprising services, devices and software. 

The EFR GmbH in figures


FREs controlled through the longwave system


employees in three locations




delivered electricity meters

Your contact

Management team

Martin Eibl

Managing Director

Headquarters Munich
T.: +49 (0)89 904 10 20 – 10

Location Thuringia
T.: +49 (0)36921 3080-120


Kerstin Schmidt 

Assistant (Management)

+49 (0)36921 3080 – 100



Beppo Knorr

Head of Sales



Ulrike Rößner

Marketing Manager / Quality Management Officer

+49 (0)89 904 10 20 – 13


Daniel Günther

Product Manager (Smart Meter)

+49 (0)36921 3080 – 312


Longwave system engineering

Bernhard Sbick

Head of Longwave System Technology

+49 (0)30 398 75 – 494


Andreas Winkler

System Engineer (Longwave System Technology) / Data Protection Officer

+49 (0)89 904 10 20 – 16


Product and system development

Paul Martin Halm

Head of Product / System Development

+49 (0)89 904 10 20 – 28


Controlling and Finance

Sudarshan Kasera

Head of Finance, Controlling & Commercial

+49 (0)89 904 10 20 – 14


Contact us

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Aktuelle Termine

    • Funded Projects

      EFR GmbH works on projects funded by the European Fund for Regional Development. These include the following projects: DITour-EE The aim of the project is digital solutions for smart tourism through sector coupling of electromobility and energy. A detailed description can be found under Within the project, EFR GmbH works on a specific charging

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    • Alliance for Cyber Security (ACS – BSI)

      The EFR is a member of the Alliance for Cyber Security (ASC – BSI)

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    Careers at EFR

    Join us in shaping the future and become part of a dynamic company! We are looking for engaged, motivated employees who want to work together to make things happen.

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