Constantin Boss

Boss-Bau GmbH & Co. KG is a construction company based in Dusseldorf, Germany. Boss-Bau offers a range of construction services, including the construction of residential complexes, rental apartments, senior citizens' residences, and office buildings. The German company has completed several new construction projects, including a residential complex in Dusseldorf-Vennhausen, single-family houses in Duisburg-Duissern, and rental apartments in Ratingen-Ost. The private company also offers support for those looking for a new home and has a portfolio of vacant apartments available for rent directly from the owner. The company was founded in 1914 by Julius Boss, and the CEO is Peter Boss.

KBBD Projektgesellschaft mbH provides real estate services. The private company is based in Dusseldorf, Germany. The CEOs of the German company are Peter Boss, Rolf Beele, Dirk Kolfhaus.