Klaus Trautmann

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.

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.

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.

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.

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.