British Thomson-Houston (BTH) was a British engineering and heavy industrial company, based at Rugby, Warwickshire, England. They were known primarily for their electrical systems and steam turbines. They were merged with the similar Metropolitan-Vickers company in 1928, but the two maintained their own identities until 1960. The holding company, Associated Electrical Industries (AEI), would later merge with GEC which exists today as Marconi Corporation plc.
In the 1960s and around BTH apprenticeships were highly thought of because its apprentices were exposed to production of a wide range of industrial products; and each year in Rugby there was a big parade of floats run by its apprentices, many of whom lodged in the nearby Coton House apprentice hostel.
