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DYWIDAG-Systems International USA Inc. is part of the
international DSI Group.

DSI´s scope of business is the development and application of Post-Tensioning and Geotechnical Systems for the Construction industry.

DYWIDAG-Systems International USA Inc. was incorporated in 1969, in the State of New York. We have grown over the last
40 years and today provide our high quality products and systems from a network of multiple sales offices and production facilities strategically positioned around the US to meet our customers needs and project scheduling requirements.


DSI Publications

Download the latest version of our company brochure to learn more about us and what we do.

Download the new BrochureDownload DSI Info 21
Available as PDF

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For more information, please call:
+1 630 739 1100 or e-mail:

Featured Project

Dive Center, St. Lucia

Dive Center, St. Lucia

St. Lucia: Efficiency in difficult Conditions with DYWIDAG Ductile Iron Piles

In addition to many hotels, restaurants and shopping facilities, Rodney Bay in the north of the Caribbean island of St. Lucia also offers tourists a comfortable marina. Currently, a new dive resort is being built overlooking the famous Rodney Bay Lagoon. The facility is being built on reclaimed land that was once part of an extensive salt marsh. The marsh was dredged in the 1970’s to build the marina. The ground conditions at the job site were challenging for the development because the underside of the pile caps and beams were all at or...


Liberty University Tunnel, USA

Liberty University Tunnel, USA

The Liberty University Tunnel: DYWIDAG Tendons for the USA’s first Jacked Box Tunnel

Liberty University is the largest university in Virginia and the largest private nonprofit university in the USA. Until recently, the university campus’s only connection to the highly frequented Wards road was via a dangerous access road. The U-turns university visitors had to make in order to get to the campus regularly caused traffic disruptions. Consequently, Liberty University decided to build a tunnel at the Wards Road/Harvard Street intersection to provide a direct connection to a new 1,400 car parking lot and to create a new main...


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STRABAG International

DSI People

DSI USA’s John Gil celebrates 25 Years of Service


DSI’s services have developed so well that both companies (client and supplier) have become partners in terms of the technical knowledge and the fast...

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