DSI, a leading manufacturer and designer of plate freezers based in Denmark. Founded in 1969, DSI (A/S Dybvad Stål Industri) initially concentrated on manufacturing steel components. Ten years later, the Danish company produced its first plate freezer. Today, DSI is a leading company solely involved in designing and manufacturing manually-operated and automatic plate freezers, which are suitable for use in onshore and marine installations. Using different natural refrigerants, DSI’s product range includes horizontal as well as vertical models.