G.L Murphy Machinery Ltd. was an industrial parts manufacturer established in 1930. They were based in a mill named Imperial Works, on the rural outskirts of Menston in West Yorkshire. The company made tools, belt driven machinery, transmissions and electrical equipment, specialising in items for tanners and leather manufacturers in addition to glue and gelatine plants. They produced batch runs of specialist components and carried out renovation work on various machine parts

The factory closed sometime around 2002.