alstria office REIT-AG engages in the acquisition, ownership, and management of real estate. The company is headquartered in Hamburg, Hamburg and currently employs 155 full-time employees. The Company’s real estate operations cover asset management, property and technical management, as well as the office planning. The company owns a portfolio of approximately 120 properties across Germany in Hamburg, Berlin, Bonn, Detmold, Dortmund, Dresden, Dusseldorf, Erfurt, Essen, Frankfurt, Halle, Hannover, Jena, Koln, Leipzig, Magdeburg, Mannheim, Munich, Neuss, Nurnberg, Potsdam, Stuttgart, Wiesbaden, Wuppertal, Wurzburg and Zwickau. The firm operates DO Deutsche Office AG as a majority owned subsidiary.