Nordic Yards Wismar (former VEB Mathias-Thesen-Werft Wismar, Aker MTW Werft, Wadan Yards MTW) is a German shipbuilding company, headquartered in Wismar. Since June 1, 1990 it has been part of the Deutschen Maschinen- und Schiffbau AG (DMS AG) and since 2009 is part of the Nordic Yards Holding GmbH.