Strabag SE is a construction company providing building construction and civil engineering services. Its activities include bridge building, prefabricated elements, commercial and industrial construction, power plants, metal construction, public buildings, environmental and water technologies, and residential construction. It also works on transportation infrastructure such as railway construction, construction materials, canalisation engineering, pipeline and sewer construction, town planning and landscape, architecture, road construction and earthworks, rock engineering and protective structures, waterway and dyke construction, and sports and recreational facilities. In addition, the company is involved in public-private partnerships, real estate development, infrastructure development, international business, property and facility services, tunnelling, and ground engineering. Strabag SE was formerly known as Bau Holding Strabag AG and changed its name to Strabag SE in April 2006. It was founded in 1835 and is headquartered in Villach, Austria.