Strabag SE is a European construction company based in Villach, Austria, with its headquarters in Vienna. It is the largest construction company in Austria and one of the largest construction companies in Europe. The company is active in its home markets Austria and Germany and in all countries of Eastern and South-East Europe, in selected markets in Western Europe, on the Arabian Peninsula, as well as in Canada, Chile, China and India. In these markets STRABAG has subsidiaries or operates on a project-basis. The business has its origins in two businesses: Lerchbaumer, founded in 1835 by Anton Lerchbaumer and known as ILBAU from 1954 and Strassenwalzenbetrieb, founded 1895, and known as STRABAG from 1930. These two businesses came under the common ownership of BIBAG Bauindustrie Beteiligungs Aktiengesellschaft (subsequently renamed STRABAG SE) – a company listed on the Vienna Stock Exchange – in 1998. In 1999, STRABAG acquired Strubag. The same year, a financial settlement was found for the free float, and the company was delisted from the Vienna Stock exchange. In 2000, the holding company Bauholding STRABAG (or STRABAG SE since 2006) started a strong brand strategy throughout Europe, unifying all under the core brand "STRABAG". In Austria ILBAU and STUAG merged into the new STRABAG AG. The following year, the holding company became the major shareholder in German company STRABAG AG (based in Cologne).