Ailsa Shipbuilding Co.
Founded in Ailsa in 1885. Nationalised as part of the state owned British Shipbuilders in 1977. Merged with Ferguson Brothers in 1980 to form Ferguson-Ailsa, the companies demerged in 1986 and Ailsa was privatised as Ailsa & Perth. Major shipbuilding ceased in 1988 and the yard closed as a shipbuilder in 2000.