The structural transformation and concentration into one core operation is something of a record in Swedish industry. Some 180 companies and legal entities were sold in the ensuing years. No fewer than five companies were listed on the stock market in the process, including Avesta Jernverk (1987), Databolin (1987), Silja Line (1990), NK (1987 and 1997) and Linjebuss (1992). This streamlining process created the opportunities for NCC, the construction and real estate company, to expand. This company was originally listed as Nordstjernan, but changed its name to NCC following the acquisition of ABV in 1988.