Turner Construction has been the mastermind for scores of head-turning projects for more than a century. The company that built Madison Square Garden has ranked among the leading general builders in the US since the early 1900s. Turner provides construction and project management services for commercial and multifamily buildings, airports, and stadiums, as well as correctional, educational, entertainment, and manufacturing facilities. The company is also a leader in sustainable or green building practices. Founded in 1902 by Henry Turner, the company is the main operating unit of The Turner Corporation, which is a subsidiary of German construction group HOCHTIEF.