Claudia Siebner

Zentrale Beteiligungsgesellschaft der Stadt Mainz mbH is a holding private company that unites various city-related sectors such as city marketing, education, and social services. The company is based in Mainz, Germany, and is actively seeking talented individuals to support the future of the city. The ZBM-Konzern group of companies works towards the development of the city, with the ZBM providing support and ensuring effective communication and transparency within the group. The CEOs of the German company are Günter Beck, Daniel Gahr.

mainzplus CITYMARKETING GmbH is a private company based in Mainz, Germany that combines Mainz Congress, Mainz Tourism, and Mainz Culture to promote Mainz as a destination for tourism, culture, and conferences. The German company provides event venues such as the Rheingoldhalle, Electoral Palace, and Frankfurter Hof in the Old Town. The company was founded in 2012 and is led by CEOs Marc André Glöckner and Katja Mailahn.

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.

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.

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.

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

Zollhafen Mainz GmbH & Co. KG is a real estate development company based in Mainz, DE. The district is located in the heart of Mainz and provides a unique perspective of the real estate market. The German company is responsible for the development of an urban harbor district called Zollhafen, which offers opportunities for investment, construction, living, and working. The joint venture company has already completed several commercial and residential buildings, and more investors and builders are getting involved. Zollhafen offers a variety of cultural and gastronomic activities, and the company is also responsible for the development of a marina. The CEOs of the company are Matthias Winkelhardt and Olaf Heinrich.