THE FOUNDATION OF OUR SUCCESS ... The Züblin Spezialtiefbau Ges.mbH is an Austrian subsidiary of the German Ed. Züblin AG, which belongs to the Strabag Group. After it was founded in 1950 as a specialist company for injection work in power plant construction, Züblin Spezialtiefbau Ges.mbH operated for a long time under the name INSOND. We are still the guarantee for innovative solutions in all areas of special civil engineering. STRABAG is the leading construction group in Austria, Germany, Central and Eastern Europe. With more than 71,800 employees, the company operates around the world. Building construction and civil engineering, traffic route construction as well as tunnel construction and services form our main segments. The high concentration of specialist skills in each segment ensures that even the most demanding ideas can be implemented through networked work. DOWNLOADS Folder Züblin Spezialtiefbau LEFT Züblin Spezialtiefbau GmbH Züblin Denmark Züblin Sweden STRABAG SE VÖBU