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), Berlin and Aachen 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.
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
1.350.000
FREs controlled through the longwave system
67
employees in four locations
300
customers
3.360.000
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
Business Development / Product Management
Georg Offner
Business Development/ Product Management Director
+49 (0)89 9041020 – 42
Sales
Marketing
Longwave system engineering
Andreas Winkler
System Engineer (Longwave System Technology) / Data Protection Officer
+49 (0)89 904 10 20 – 16
Product and system development
Controlling and Finance
Sudarshan Kasera
Head of Finance, Controlling & Commercial
+49 (0)89 904 10 20 – 14
EFR GmbH in News
- The first EUCC-certified smart meter gateways are now available
Stadtwerke Norderstedt is one of the first users of the new version 2.00 of EFR GmbH’s SGH-S smart meter gateway. The device was the first gateway in Germany to be certified under the European Cybersecurity Certification (EUCC Regulation EU 2024/482) and is ready for “TR v2.0”.On Tuesday, April 14, 2026, energy management specialist EFR officially […]
- EFR equips entire grid of NPorts with IMs
At the end of 2025, EFR GmbH successfully began equipping the entire grid of Niedersachsen Ports (NPorts) with smart metering systems. These consist of EFR’s own SLP meters, smart meter gateways, and control boxes. As a result, NPorts exceeded the Federal Network Agency’s targets for the rollout of smart metering systems for 2025. The EFR […]
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.
