BaulderstoneBaulderstone, formerly Baulderstone Hornibrook, was an Australian construction company.HistoryMR HornibrookIn 1926, Manuel Hornibrook founded a construction company in Brisbane. Amongst its notable projects were the Story Bridge and William Jolly Bridge. In the 1970s, it built the Sydney Opera House.AW BaulderstoneIn 1946, Albert William Baulderstone founded a construction company in Adelaide, South Australia. In 1984, Societe Auxiliaire d'Entreprises became a major shareholder in AW Baulderstone.Baulderstone HornibrookIn 1985 the two companies merged to form Baulderstone Hornibrook, with operations expanded overseas into Asia. In 1993 it was acquired by Bilfinger Berger. In October 2008 it was rebranded as Baulderstone. In December 2010 it was included in the sale of Bilfinger Berger Australia to Lendlease. The brand was retired in 2013 as part of a restructure of Lendlease's construction business units.Major projectsMajor projects undertaken included: