Andreas Ehlert

Handwerksbau Niederrhein AG is a German real estate company that offers rental homes, garages, and parking spaces. The private company is based in Dusseldorf, Germany and was founded in 1936. The company also provides news and tips related to the real estate industry, as well as advice on moving and organizing paperwork.

Verlagsanstalt Handwerk GmbH is a publishing house that provides a wide range of business literature to medium-sized companies. The private company is based in Dusseldorf, Germany. The German company's offerings include newspapers, magazines, books, and e-media. The company was founded in 1926. The CEO is Rüdiger Gottschalk.

Stadtwerke Düsseldorf AG engages in the distribution of electricity, natural gas, water, as well as district and local heating to private and corporate clients. It also provides waste incineration services. The company was founded in 1866 and is headquartered in Duesseldorf, Germany.

SIGNAL IDUNA Krankenversicherung aG provides health insurance services. The company is headquartered in Dortmund, Germany.

Part of SIGNAL IDUNA Gruppe, SIGNAL IDUNA Holding AG provides insurance services. The private company is based in Dortmund, Germany. The CEO of the German company is Ulrich Leitermann.