 Big EPC and Energy companies have set up their Engineering centres which include McDermott International, DNV GL, Saipem, Rotork, Technip, Foster Wheeler, Mott MacDonald, Petrofac, Vestas, Siemens Gamesa, Suzlon, and others.Austrian company "Austrian Energy and Environment" have also a design office here besides local giant Larsen & Toubro ECC.Chennai is known as the Detroit of Asia.