DYWIDAG-Systems International (DSI) is an internationally operating network of wholly owned subsidiaries and associated companies. DSI? global activities report to four headquarters (Germany, Europe, Asia-Pacific, Americas).

DYWIDAG-Systems International GmbH is the holding company of the DSI Group and a wholly owned subsidiary of Walter Bau-AG merged with DYWIDAG. DSI grants sublicenses to members of the DSI Group of companies as well as to partner companies. DSI is responsible for co-ordinating business activities worldwide. DSI scope of business is the development and application of Post-Tensioning, Geotechnical and Stay Cable Systems for construction and mining industries. As a leading specialist subcontractor for post-tensioning and related techniques, DSI provides complete services.

Backed by many years of experience in all types and scopes of construction projects, DSI specialists support the client in every project phase from planning to supply of high quality DSI systems and execution of the work on the construction site, including quality management and monitoring services. Systematic research in the fields of materials, structural engineering and construction methods has provided DSI with a constant flow of innovative ideas. Progressive development, combined with a commitment to the highest quality standards, is DSI's response to the changing needs of current and future construction markets.

The DSI business philosophy is based on the establishment and cultivation of a trustworthy business relationship with its clients. Irrespective of circumstances, DSI is committed to fulfilling the tasks entrusted by its clients with local presence and global competence.