Andrew Barclay Sons & Co.
 Andrew Barclay Sons & Co. are a builder of steam and later fireless and diesel locomotives. The company's history dates to foundation of an engineering workshop in 1840 in Kilmarnock Scotland.After a long period of operation the company was acquired by the Hunslet group in 1972 and renamed Hunslet-Barclay; in 2007 the company changed hands after bankruptcy becoming Brush-Barclay as part of the FKI Group.