Thomas Zimmer

E.ON Verwaltungs AG Nr. 1 operates as an electricity supplier throughout Bavaria. Its electricity distribution services encompass electricity generation, electricity distribution. The firm engages in cooperative business activities and ventures. It was founded in 1921 and is headquartered in Regensburg, Germany.

Bayernwerk AG operates as an energy service provider in Germany. Its services encompass electricity generation and distribution, biogas, water supply, district heating and street lighting. The firm offers their services to industrial, commercial and residential customers. The company was founded in 2001 and is headquartered in Regensburg, Germany.

N-ERGIE AG supplies electricity, gas and water. It supplies electricity to Middle Franconia, parts of Lower Franconia, Upper Bavaria, peripheral areas of Swabia and the Upper Palatinate. The company was founded in 2000 and is headquartered in Nuremberg, Germany.

Holding für Versorgung und Verkehr GmbH Bochum operates as a holding company with interests in the electric, water, and waste management sectors. It also manages shareholdings in other companies. The company was founded on November 30, 1981 and is headquartered in Bochum, Germany.

Dortmunder Stadtwerke AG provides urban development and transportation services for the city of Dortmund. The firm, through its subsidiaries, also provides energy and telecommunication services. The company was founded on June 18, 1857 and is headquartered in Dortmund, Germany.

RWE Power AG engages in the production, generation, and distribution of electricity. It operates coal, nuclear, hydroelectric, and other conventional power plants. The firm also specializes in the extraction of energy raw materials. The company is headquartered in Essen, Germany.

Stadtwerke Schwerte GmbH provides gas and electricity distribution services. The company is headquartered in Schwerte, Germany.

EDG Entsorgung Dortmund GmbH provides solid waste collection system services. The company offers a comprehensive service in the areas of waste management, street cleaning and winter maintenance. In addition, a number of benefits come to the prevention, recovery and disposal of waste, such as targeted and individual counseling for households and businesses, the separate collection of recyclable and pollutants, the separate treatment of organic matter (compost) and the environmentally sound disposal of waste materials. The company was founded in 1997 and is headquartered in Dortmund, Germany.

Wasser & Gas Westfalen GmbH provides gas and water services. The company was founded in 2003 and is headquartered in Bochum, Germany.

Stadtwerke Bochum Holding GmbH engages in the supply of electricity, gas, water, and district heating. The company was founded on April 13, 1855 and is headquartered in Bochum, Germany.

Wasser und Gas Westfalen GmbH & Co. Holding KG operates as a holding company of businesses with focus on water, natural gas and energy supply. The company is based in Bochum, Germany.

Energie- und Wasserversorgung Mittleres Ruhrgebiet GmbH is a holding company, which engages in sale and distribution of electricity and water. It specializes in electricity generation and water supply. The company was founded in 1998 and is headquartered in Bochum, Germany.

Iskenderun Enerji Uretim Ve Ticaret AS operates as a coal fired power plant. The firm operates in compliance with international technical standarts and the competitiveness of the plant is secured by design and high availability. The company was founded in 1998 and is headquartered in Ankara, Turkey.

Gas-Union GmbH engages in the production and supply of natural gas. The firm operates through the following segments: Sales, Trading, and Services; Networks; Storage; and Upstream. The Sales, Trading, and Services segment focuses on product procurement, sales, distribution, and risk management processes. The Networks segment refers to product transport. The Storage segment is reponsible for technical storage and services. The Upstream segment specializes in gas exploration. The company was founded in 1961 and is headquartered in Frankfurt, Germany.

TEAG Thüringer Energie AG engages in the sale, distribution, and trade of energy and related products. It offers electricity, natural gas, as well as electro-mobility solutions. It also provides thermographic and air permeability examination of buildings, and other consulting services. The company was founded on November 15, 2007 and is headquartered in Erfurt, Germany.

Deutsche Energie-Agentur GmbH provides energy services focused on environmentally friendly production, conversion, and use of energy. The joint venture company is based in Berlin, Germany. The CEOs are Andreas Kuhlmann, Kristina Haverkamp. The German company was founded in 2000.

Sparkasse Duisburg operates as a savings bank. The private company is based in Duisburg, Germany. The CEO of the German company is Joachim K. Bonn.

KEB Holding AG is a German company that provides securities brokerage services. It is based in Muenster, Germany and ultimately controlled by the City of Dortmund. The company was founded in 2002.

PricewaterhouseCoopers GmbH Wirtschaftsprüfungsgesellschaft engages in the provision of auditing and consulting services. It offers audit and audit-related services, tax and legal advice, as well as deals and consulting. The company was founded on October 25, 2016 and is headquartered in Frankfurt am Main, Germany.

RAG-Stiftung operates as a private foundation. It provides financing services for the perpetual mine management as well as the educational, scientific, and cultural projects related to coal mining in the Ruhr and Saar regions. The company was founded on June 26, 2007 and is headquartered in Essen, Germany.

Trianel GmbH engages in the production, procurement, trading, and distribution of electricity and gas. It constructs, purchases, and operates gas, steam turbine, and coal-fired power plants, including offshore wind farms. The firm also provides services such as energy and market consulting, electric mobility, as well as initiation and implementation of energy efficiency networks. The company was founded on June 8, 1999 and is headquartered in Aachen, Germany.

Biokraftgesellschaft Moers/dinslaken MbH generates biomass energy. The private company is based in Moers, Germany. The CEOs of the German company are Arno Gedigk, Manuela Kemper-Wibelitz.

Dortmund Hafen AG is a company based in Dortmund, Germany that was founded in 1895. However, it is known that the German company is ultimately controlled by the City of Dortmund.

DOGEWO Dortmunder Gesellschaft für Wohnen mbH is a company based in Dortmund, Germany. DOGEWO21 is a subsidiary of the German company and ultimately controlled by the City of Dortmund. The company's main focus is on providing housing solutions and promoting community engagement through their neighborhood agencies. The company offers various channels for their customers to request repairs or submit inquiries, including mobile, PC, service offices, and phone. DOGEWO21 also provides a wide range of housing options for individuals looking for a new home. The company was founded in 1918 by Hans Strobel and the CEO is Klaus Graniki.

Part of Rethmann SE & Co. KG, GMVA Gemeinschafts-Müll-Verbrennungsanlage Niederrhein GmbH is a waste management company based in Oberhausen, Germany. The CEOs of the German company are Michaela Schröder, Karsten Woidtke, Angela Sabac-el-Cher. The company specializes in treating mandatory waste from the Niederrhein region and beyond. The company places a high value on data security and provides information on their website about the data collected during website visits.

Part of E.ON SE, E.ON Kundsupport Sverige AB engages in the operation of a call center. The company is based in Malmö, Sweden. Leonhard Birnbaum has been the CEO of the Swedish company since 2021.

EDG Holding GmbH provides waste management and disposal services. The private company is based in Dortmund, Germany. The CEO of the German company is Klaus Niesmann.

IZES gGmbH is a research and consulting institute that focuses on energy transition, climate protection, and resource conservation. The private company is based in Saarbrücken, Germany, and was founded in 1999. The CEOs are Michael Brand, Frank Baur, and Friedrich Simson. The German company offers a range of services, including project management, research and development, and consulting. The company works on various projects related to renewable energy, sustainable mobility, and energy efficiency. The company collaborates with other organizations, such as universities and research institutes, to develop innovative solutions for sustainable development.

GreenCom Networks AG develops energy management software for the energy industry. The firm offers solutions for energy control and consumption control for end customers, as well as for the management of local energy production and electric cars. It provides solutions for electric vehicle management, distributed generation management, smart consumption, and energy monitoring for power and grid operators, utility retailers, and end customers. The company is headquartered in Munich, Germany.

Part of STEAG GmbH, Steag 1. The company is based in Essen, Germany. Beteiligungs-GmbH is a German company that provides investment services. The CEOs of the company are Andreas Reichel and Rainer Borgmann.

STEAG New Energies GmbH engages in the development and provision of energy solutions. It distributes electric power, wind power, bioenergy, mine gas, district heat, and geothermal power for energy supply. The company was founded in 1961 and is headquartered in Saarbrücken, Germany.

Part of RWE AG, RWE Generation SE is a German company responsible for electricity generation from various sources such as gas, hard coal, hydropower, and biomass. The company is based in Essen, Germany. The company has a flexible and efficient power plant fleet and has become a driver of the energy transition by converting power plants and developing storage technologies. Roger Miesen has been the CEO of the company since 1982.

KSBG Kommunale Beteiligungsgesellschaft GmbH & Co. KG operates as a consortium of six municipal utilities that serve the Rhine-Ruhr district. It engages in the generation and supply of energy, as well as provides network energy services to municipalities. The company was founded on December 7, 2010 and is headquartered in Essen, Germany.

Fernwärmeversorgung Niederrhein GmbH is a German company that distributes steam and air conditioning. Part of Stadtwerke Dinslaken GmbH, the company is based in Dinslaken, Germany. The company was founded in 1966 and the CEO is Josef Christian Kremer.

Heizung- und Sanitärtechnik R. Petersen GmbH is a private company based in Kessin, Germany. The CEOs of the German company are Rolf Petersen and Gerrit Peters. The company provides heating, ventilation, and air-conditioning installation services.

Rolf Petersen GmbH is a company based in Osterrönfeld, Germany. The German company specializes in heating, air conditioning, and various other services. It was founded in 1985 by Gerrit Peters, who has been the CEO since then.

Dortmunder Stadtwerke Beteiligungsgesellschaft mbH provides investment services and is ultimately controlled by the City of Dortmund. The company is based in Dortmund, Germany. The CEOs are Jörg Jacoby, Guntram Pehlke. The German company was founded in 2006.

ENTEGA STEAG Wärme GmbH is a leading energy and infrastructure service provider in Germany, based in Darmstadt, Germany. The German company is headed by CEOs Thomas Billotet and Markus Horn. ENTEGA is one of the largest providers of green energy and climate-neutral solutions in the country. The private company offers job opportunities in the field of energy services and renewable energy for both beginners and experienced professionals.

Wasserwerke Dinslaken GmbH is a private company based in Dinslaken, Germany that engages in the extraction, processing, and supply of drinking water. The CEO of the German company is Josef Christian Kremer.

Part of Energie- und Wasserversorgung Mittleres Ruhrgebiet GmbH, Glasfaser Ruhr GmbH & Co. KG is a German company that provides fiber optic network services. The company is based in Bochum, Germany. The CEOs of the company are Frank Thiel, Dietmar Spohn.

Dortmund Stadtwerke Holding GmbH is an investment services company based in Dortmund, Germany. The German company provides investment services. The CEO of the private company is Guntram Pehlke.

STEAG Fernwärme Essen GmbH & Co. KG is a joint venture company based in Essen, DE. STEAG Fernwärme Essen GmbH & Co. KG provides steam and air-conditioning supply services. The German company was founded in 2017 and is led by CEOs Peter Schäfer and Markus Manderfeld.

NeXtWind Management GmbH is a German renewable energy company that acquires and rejuvenates older wind parks. NeXtWind is based in Berlin, Germany. The private company combines responsible capital with innovative business ideas to bring end-of-regulatory-life renewable energy assets to a new level. The company was founded in 2020 by Werner Süss, Lars B. Meyer, and Ewald Woste, and Lars B. Meyer, Werner Süss, and Ewald Woste have been the CEOs since 2020.

Klinikum Dortmund gGmbH is a medical center located in Dortmund, DE. The center is an academic teaching hospital of the University of Münster, and it has two clinic centers, Mitte and North, located in Beurhausstraße 40 and Münsterstraße 240, respectively. The center has 25 clinics and five institutes that offer top medicine in all specialties except psychiatry and transplant medicine. The company provides high-quality medical services to patients in Germany. The private company was founded in 1876, and the CEO is Rudolf Mintrop.

Part of Stadtwerke Dinslaken GmbH, Fernwärmeverbund Niederrhein Duisburg/Dinslaken GmbH & Co. KG is a company based in Dinslaken, Germany. The CEOs are Ralf Möllensiepen, Thomas Döking, Josef Christian Kremer. Fernwärmeverbund Niederrhein Duisburg/Dinslaken GmbH & Co. KG distributes heating and cooling supplies. The German company was founded in 2003.

Gichtgaskraftwerk Dillingen GmbH & Co. KG is a private company that supplies steam and air-conditioning. The company is based in Dillingen, Germany. The CEOs are Markus Lauer, Thomas Billotet, Klaus Blug. The German company was founded in 2006.