Klaus Hafner

Mainzer Stadtwerke AG engages in the supply and distribution of electricity, district heating, gas, and water. It also provides internet and network services, such as Mainzer Internet, Mainzer Ethernet, Mainzer WLAN, and Mainzer Cloud. The company was founded in 1971 and is headquartered in Mainz, Germany.

Wohnbau Mainz GmbH is a real estate company that specializes in the development, construction, and management of residential and commercial properties. The company is based in Mainz, Germany. The German company is a subsidiary of Mainzer Stadtwerke AG, which is ultimately controlled by the State of Mainz. The company was founded in 1917 and is currently led by CEOs Franz Ringhoffer and Thomas Will.

Kraftwerke Mainz-Wiesbaden AG engages in the generation and distribution of electricity. The company was founded in 1931 and is headquartered in Mainz, Germany.

Grundstücksverwaltungsgesellschaft der Stadt Mainz mbH is based in Mainz, Germany. The company, Grundstücksverwaltungsgesellschaft der Stadt Mainz mbH, constructs and manages commercial and residential buildings and roads. It is ultimately controlled by the City of Mainz. It was founded in 1991 and the CEO is Franz Ringhoffer.

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.

Staatstheater Mainz GmbH operates theatres and is ultimately controlled by the State of Rhineland-Palatinate. The company is based in Mainz, Germany.

Überlandwerk Groß-Gerau GmbH is an electricity distribution company based in Gross-Gerau, Germany, with subsidiaries in Germany. The private company distributes electricity. The CEO of the company is Jürgen Schmidt.

Part of Deutsches Rotes Kreuz Kreisverband Mainz-Bingen, Deutsches Rotes Kreuz Rettungsdienst Rheinhessen Nahe GmbH is a German company that provides information about their workshop and central warehouse in Sprendlingen. The company is based in Mainz, Germany. The company also offers quality management in emergency medical services with their QM manual available online. The CEO of the company is Jörg Steinheimer.

Mainzer Aufbaugesellschaft Mit Beschränkter Haftung (MAG) is a German company based in Mainz, DE, and has subsidiaries in Germany. MAG specializes in the development and realization of significant urban projects in Mainz and the Rhein-Main metropolitan region. The company provides professional and innovative services to both private and municipal clients. MAG's core competencies include project development, project management, and consulting services. The company's projects range from residential and commercial properties to special-purpose buildings such as schools and sports halls. MAG's mission is to create space that enhances the quality of life for people in the region. The company was founded in 1966, and the CEOs are Martin Dörnemann and Christian von der Lühe.

Mainzer Bürgerhäuser GmbH & Co. KG is an event location based in Mainz, DE. The private company's description states that it is an event location with event rooms that can be rented for various occasions. The German company offers event rooms for different occasions that can be rented. The CEO of the company is Günter Beck.

Mainzer Alten- und Wohnheime gGmbH is based in Mainz, Germany. Mainzer Alten- und Wohnheime gGmbH provides residential care services for the elderly. The German company is ultimately controlled by the State of Mainz. The company was founded in 1956. The CEO is Oliver Backhaus.

In.betrieb gGmbH Gesellschaft für Teilhabe und Integration is a private company based in Mainz-Hechtsheim, Germany. The German company provides assisted living facilities. The CEO of the company is Michael Huber.

Gesellschaft für psychosoziale Einrichtungen gGmbH is a social service provider based in Mainz, Germany. Gesellschaft für psychosoziale Einrichtungen gGmbH offers rehabilitation and inclusion services for people with predominantly mental illnesses and disabilities. The German company's services are varied, always up-to-date, and often innovative. The non-profit company was founded in 1985 and the CEO is Jörg Greis.