Aareal Bank AG is an international company listed on the MDAX index with headquarters in Wiesbaden, Germany, which traded as DePfa Deutsche Bau- und Boden Bank AG and formed part of the DePfa Gruppe until 2002.
The company's history dates back to two institutions: Preußische Landespfandbriefanstalt (founded in 1922) and Deutsche Wohnstättenbank AG (founded in 1923), both of which were based in Berlin. Deutsche Wohnstättenbank AG was renamed Deutsche Bau- und Bodenbank in 1926. Preußische Landespfandbriefanstalt was given the name Deutsche Pfandbriefanstalt in 1954. In 1979, Deutsche Pfandbriefanstalt acquired a majority interest in Deutsche Bau- und Bodenbank. It traded as public limited company under the name Deutsche Pfandbrief- und Hypothekenbank AG from 1989, before going public in 1991 and opening its first foreign branch in Amsterdam in the same year.