Stadtwerke Weinheim provides energy, water, and heat supply services to customers in the Weinheim region — plus waste management and recycling services.
The municipal utility company is also involved in local infrastructure management and supports ongoing energy supply efficiency. In its latest financial filings, Stadtwerke Weinheim reported €93.7m turnover.
BOREAS Energie is an energy company based in Dresden, Saxony, and was incorporated in 1991. It develops, operates, and manages wind, solar, and biogas power projects across Germany.
The company’s activities include site planning, project financing, and long-term asset operation within the renewable energy sector.
In its latest financial filings, BOREAS reported a turnover of €103m.
Stadtwerke Achim is a municipal utility company based in Lower Saxony. Established in 1910, it provides electricity, gas, water, and heat services to customers in the Achim region.
The company also manages energy distribution infrastructure and local utility operations in the State.
With a turnover of €105m, the Achim-based company — which employs just 92 people — is eighth on our list of German electricity and energy storage companies.
Global Tech I Offshore Wind is based in Hamburg and was incorporated in 2008. The company oversees the operation of the Global Tech I’s offshore wind farm in the North Sea.
Its activities include energy generation, grid integration, and long-term asset management for offshore wind infrastructure.
The company reported a turnover of €184m in its latest financial filings.
Stadtwerke Ratingen is a regional utility company based in North Rhine-Westphalia. Incorporated in 1976, it supplies electricity, gas, water, and district heating across the Ratingen area.
The company also manages local energy infrastructure and provides support services related to supply and efficiency.
It reported a turnover of €198m in its latest filings.
Greencells is a solar company based in Saarland. Since its incorporation in 2009, the firm has grown into a key provider of utility-scale photovoltaic (PV) systems. The company also delivers solar projects globally, including the management of operations and maintenance for large solar parks.
The company reported a turnover of €214m in 2023.
Iberdrola Deutschland is the German subsidiary of Spanish utility group Iberdrola. Based in Berlin and incorporated in 2008, the company focuses on renewable energy generation, particularly onshore and offshore wind.
Supporting industrial and commercial clients across Germany with green electricity supply and power purchase agreements (PPAs), the firm also develops large-scale renewable projects and grid infrastructure.
Iberdrola Deutschland reported a turnover of €359m in 2022, making it number four on our list of companies in Germany powering the energy transition.
Contemporary Amperex Technology Thuringia is a battery manufacturing company based in Thuringia. Founded in 2018, it operates as the European arm of Chinese battery business CATL.
The company specialises in producing lithium-ion battery cells and modules for electric vehicles and stationary energy storage. Its Arnstadt facility marks CATL’s first manufacturing plant outside China, with a targeted capacity of 14 GWh annually.
With a reported turnover of €575m, the company plays a key role in Europe’s clean energy supply chain and supporting the region’s shift to electrification.
Stadtwerke Gießen is a publicly-owned German municipal utility company that generates and supplies green electricity to private customers, with a focus on local and sustainable energy production.
With a turnover of €612m, the Gießen-based company — which employs 780 people — is second on our list of German electricity and energy storage companies.
Sungrow Deutschland develops and manufactures solar inverters, energy storage systems, and electric vehicle charging solutions for residential, commercial, and utility-scale applications.
Based in Munich, Bavaria and employing 114 people, the energy storage company generated €955m in revenue according to its latest financial statement.
