The bank was founded in 1996 under the leadership of the Landesbank Baden-Württemberg and the Vorarlberger Landes- und Hypothekenbank. Through mergingthe market shares of the Landeskreditbank Baden-Württemberg, the LG and the SüdwestLB to the LBBW, the ownership of the Landeskreditbank was passed to the LBBW. Due to the integration of the BW-Bank and the following reorientation, the LBBW sold its shares in 2005 and 2006 to the Würth-Gruppe, which held 88.55% of the Internationales Bankhaus Bodensee AG shares until 2009. In spring 2009 the Würth-Gruppe bought the 1.45% of shares the management had held up until that point, increasing shares to 90%.