DYWIDAG-Systems International (DSI) is a globally leading system supplier of innovative technologies for Construction and Underground.
The company's long tradition reaches back as far as 1865 - the founding year of the German construction firm, Dyckerhoff & Widmann AG (DYWIDAG). DSI was founded in order to market DYWIDAG Systems and technical know-how around the world and to develop innovative systems resulting from its own R&D activities.
