In 1925, Scotts took over Ross & Marshall's Cartsdyke Mid Yard. In 1934, they exchanged their Cartsdyke East yard for Cartsdyke Mid yard with Greenock Dockyard Ltd. In June 1965, the Company took over Scott's & Sons (Bowling) Ltd, and in December 1965, Scott's merged with the Greenock Dockyard Company and the Cartsburn and Cartsdyke Dockyards were fully integrated in 1966. In 1967, the Company merged with Lithgows to form Scott Lithgow Ltd, operating as Scotts Shipbuilding Co (1969) Ltd. Scott Lithgow Ltd was absorbed into the nationalised British Shipbuilders in 1977.