GEC Traction (GECT) was formed in 1972 as part of the GEC Power Engineering Group following earlier amalgamations of the traction divisions of the General Electric Company (GEC), the English Electric Company (EE) and Associated Electrical Industries (AEI). A wholly owned subsidiary company of GEC, the company had offices and works, located at Trafford Park in Manchester, at Strand Road in Preston, and at Attercliffe Common, Sheffield. The headquarters of GEC Traction was Trafford Park, Manchester (previously the headquarters of English Electric-AEI Traction) with design of rotating machines at Preston and Sheffield, and manufacturing activities for control equipment at Manchester and Preston. GEC Traction designed and manufactured a full range of traction machines and control equipment for electric vehicles, including electric locomotives and multiple unit trains for main-line and mass-transit railway systems (dc up to 3,000 volts, and ac up to 50,000 volts), diesel-electric locomotives and trains, mining and industrial locomotives, tramcars and trolleybuses. GEC Traction was the leading supplier of traction equipment in the UK and had a wide market around the world, particularly in South Africa, Australasia, Hong Kong, South Korea, South America and Pakistan. In 1979 the Industrial Locomotive Division of the former English Electric which was based at Vulcan Works, Newton-le-Willows was merged into GEC Traction, which later became a separate company, GEC Industrial Locomotives Ltd. During the late 1980s and 1990s the firm underwent major rationalisation, involving closure of several sites including Attercliffe Common in Sheffield in 1985 and the company’s headquarters at Trafford Park in Manchester in 1998. The company name GEC Traction endured until a merger with the French Alsthom group in 1989, which created GEC Alsthom Traction, which was still a branch of the main company GEC Alsthom.

The General Electric Company (GEC) was created as the General Electric Apparatus Company in 1886 by Hugo Hirst and Gustav Byng from a small electrical business established in London by Byng (Gustav Binswanger and Company, using Byng's original name). In 1887 GEC published the first electrical catalogue of its kind. The following year the company acquired its first factory in Manchester where telephones, electric bells, ceiling roses and switches were manufactured. In 1889, the General Electric Co. Ltd. was formed as a private limited company and moved to larger premises at 71, Queen Victoria Street. Now known also as G.E.C., the company was expanding rapidly, opening new branches and factories. Initially manufacture was focussed on electric bells and light fittings, but this expanded to a wide range of electrical equipment - resulting in the firm's slogan 'Everything Electrical'. In 1893, GEC decided to invest in lamp manufacture. The resulting company, (to become Osram in 1909), was to lead the way in lamp design and the burgeoning demand for electric lighting was to make GEC's fortune. In 1900, GEC was incorporated as a public limited company, The General Electric Company (1900) Ltd, (the '1900' was dropped three years later). In 1902, GEC's first purpose-built factory, the Witton Engineering Works was opened near Birmingham which designed and manufactured electrical equipment and machines. Rapidly growing private and commercial use of electricity ensured buoyant demand and the company expanded both at home and overseas, with the establishment of agencies in Europe, Japan, Australia, South Africa and India and a substantial export trade to South America. The outbreak of the First World War transformed GEC into a major player in the electrical industry with profits to match. The company was heavily involved in the war effort, with products such as radios, signalling lamps and arc-lamp carbons. Between the wars, GEC expanded to become an international corporation and a national institution. The take-over of Fraser and Chalmers in 1918 took GEC into heavy engineering and consolidated their claim to supply 'Everything Electrical'. Other major factories included Osram Lamps at Hammersmith and the telephone works in Coventry. During the 1920s, the company was heavily involved in the creation of the UK national grid. In addition, the opening of the new purpose built company headquarters in Kingsway, London in 1921, and the pioneering industrial research laboratories at Wembley in 1923, were symbolic of the continuing expansion of both GEC and the electrical industry. The company took over several companies in the Birmingham area and elsewhere. After being a minor player in tram equipment, the company entered the heavy rail electric traction market in the 1920’s and 30’s. During the Second World War, GEC was a major supplier to the military of electrical and engineering products. Significant contributions to the war effort included the development of the cavity magnetron for radar, advances in communications technology and the on-going mass production of lamps and lighting equipment. After the war the company continued in the full range of electrical equipment from electronics to atomic power stations, but was not very profitable. In 1961, after a failed takeover bid from the English Electric Company, GEC took over Radio and Allied Industries, a small but very profitable television set manufacturer. Michael Sobell and Arnold Weinstock from this company became GEC directors with a substantial shareholding. Weinstock became managing director in 1963 and undertook drastic changes to make the company more profitable. The rail traction operations were closed and the heavy electrical/ power station businesses were sold to Parsons. A number of ex GEC employees were recruited by Associated Electrical Industries (AEI). A hostile takeover bid was made for AEI in 1967 and the relative profitability/share prices enabled GEC to take over the much larger AEI. In 1968 English Electric agreed to merge with GEC. Further takeovers and mergers made the company one of the largest private employers in the UK. In 1989, Arnold Weinstock agreed a merger between the power and transport businesses of GEC and those of Alsthom of France, part of Compagnie Générale d’Electricité (CGE) to form GEC Alsthom. While Weinstock was in charge the UK arm, the company continued to prosper, but after his death of his son in 1996 he was asked to retire and most of the company’s operations were transferred to France, or were sold off. Small sales and service operations remain for some of the products. Many of the factories have been demolished, with only Stafford continuing on a moderate scale.

Associated Electrical Industries (AEI) was formed in 1928 as a financial holding company for a number of leading electrical manufacturing and trading companies in the United Kingdom. The two major constituent companies were British Thomson-Houston (BTH) based at Rugby, (Mill Road Works) and Metropolitan-Vickers Electrical Company Ltd (Metrovicks) situated at Trafford Park, Manchester. However, fierce rivalry existed between the Metrovick and BTH brands resulting in internal competition and duplicated management. This was highlighted during the Second World War in 1939, when Metrovicks and BTH became the first two firms in the world to construct jet engines (independently from each other). Following the Second World War, in 1954, AEI expanded to consist of BTH, Metrovicks, Edison Swan Electric Co, Ferguson Pailin, Hotpoint Electric Appliance Co, International Refrigerator Co, Newton Victor, Sunvic Controls, Premier Electric Heaters, Siemens Bros (1955) and Birlec (1954). In 1959 AEI decided to remove the familiar brands of BTH and Metrovicks and consolidate both as AEI resulting in internal problems and a fall in sales and market value. However, AEI acquired a variety of companies from 1959 to 1967, these included Associated Insulation Products, W. T. Henley’s Telegraph Works Co (1958), and London Electric Wire Co and Smiths (1958), Submarine Cables, Hackbridge Holdings Ltd., The Lancashire Dynamo and Crypto Ltd., W.T. Avery Ltd., Henley and Schreiber. The General Electric Company bought AEI in 1967.

The English Electric Company was formed on 14th December 1918 and over the following year acquired Dick, Kerr & Company of Preston, Willans & Robinson of Rugby, the Phoenix Dynamo Manufacturing Company of Bradford, and Coventry Ordnance Works. After the First World War the various German owned Siemens works were distributed to different UK companies and in November 1919 English Electric acquired the Siemens Brothers Dynamo Works at Stafford, which became the company headquarters in 1931. Coventry Ordnance, primary output naval guns, did not feature in the gradual product rationalisation which took place between the First World and Second world Wars. Willans & Robinson’s Rugby works specialised in prime movers, steam, hydro and internal combustion, and their Stafford works on power station and distribution electrics, including transformers and large electric machines for applications such as mining and steel works. Dick Kerr & Company continued building equipment and vehicles for bus, tram and railway applications with the Phoenix Dynamo Manufacturing Company concentrating on medium and small electrical machines. Involvement with aircraft continued a small scale. By 1929 the company was in financial trouble and an American syndicate fronted by Lazard Bros. put in new capital. In 1930 Westinghouse of Pittsburgh entered into an agreement with the company for the exchange of technical information relating to steam turbines and electrical apparatus. This cooperation continued into the 1950s. 1930 saw the closure of Preston West works and the transfer of traction electrical design and manufacture to the Phoenix Dynamo Manufacturing works. The Westinghouse influence included top management changes with Sir H Mensforth becoming chairman and George Nelson managing director. Both had been with British Westinghouse at Trafford Park. The early 1930s saw a remarkable improvement in the company’s finances and domestic appliance manufacture was started at Bradford and Stafford. In 1936 they began production of diesel locomotives at Preston and were later involved in the production of the Deltic locomotive for British Rail, presaging the end of steam traction in the UK. Extensive shadow factory building for war production commenced in the late 1930’s, including at Preston East works and Salmesbury for aircraft production and at East Lancashire Road, Liverpool for D. Napier aero engines. A large variety of military equipment built during the war included thousands of Cromwell tanks from Stafford and over 3000 Handley Page Hampden and Halifax bombers from Preston and Salmesbury. After the war manufacture of smaller products from Bradford and Stafford moved to the large Liverpool works. This included electrical distribution transformers, switchgear, fuse gear, fractional horsepower motors and domestic appliances. Napier’s continued engine manufacture with the development of the ’Deltic’ diesel engine, mainly for marine applications. The nearby Netherton works took over the manufacture of large hydro-electric turbines and generators from Willans and Stafford. In 1942 English Electric acquired D. Napier & Son Ltd and Marconi in 1946. The company went on to extend their railway interests with the acquisition of the Vulcan Foundry and Robert Stephenson and Hawthorn Ltd in 1955. The company tried to take over The General Electric Company (GEC) in 1960 but failed. Traction manufacture, but not the offices, moved back to Preston East works and ‘K’, ‘RK’ and ‘V’ engine design and manufacture moved from Willans to Preston West works which was now also used for locomotive building. Kidsgrove works in Stafford made industrial controls and for a while was a major player in the UK computer industry, merging with Leo Computers and then into ICL. Train performance calculations were an early user of the mid-fifties ‘Deuce’ computer. Preston also became a major player in the aircraft industry taking over the wartime RAF/USAF base at Warton aerodrome - major design and manufacture contracts included Canberra bombers and Lightning fighters. Rationalisation in the 1960s resulted in English Electric Aviation becoming 40% of the new British Aircraft Corporation. In 1961 English Electric took over Dorman Diesels Ltd which in turn had acquired W. G. Bagnall Ltd. In 1966 English Electric Diesels merged with Ruston and Hornsby which already included Paxmans. This company eventually became GEC Diesels. Elliott Automation was acquired in 1967. The following year GEC took over English Electric, ending its independent existence.

The British Thomson-Houston Co. Ltd., (BTH) was created as a subsidiary of the General Electric Company, USA in 1896 to exploit the sale of products in the United Kingdom. BTH was a reconstruction of an existing firm, Laing, Wharton and Down (1886). The BTH manufacturing works were based at Rugby, Warwickshire and the company’s products included induction motors, alternators, switchgear, turbo-generators and turbines, as well as a large number of rotary converters and motor converters, primarily for chemical plants. During the First World War, BTH’s most significant contribution was the development of marine apparatus for the naval service. The 1920s saw a period of vast expansion for the company with new extensions built at many of its factories such as Willesden, Birmingham, Chesterfield and Lutterworth. BTH amalgamated with Metropolitan-Vickers Electrical Company Ltd to form Associated Electrical Industries (AEI) in 1928 although both companies retained their separate identities and continued to compete for the same contracts. BTH developed manufactured electric torpedoes and electrical components for aircraft engines, munitions, etc., during the Second World War and in 1935 independently of each other, BTH and Metropolitan-Vickers were the first two companies in the world to construct jet engines.

E E Baguley Ltd was founded in 1932 of Uxbridge Street, Burton-on-Trent, to continue the work of the earlier firm Baguley Engineers Ltd in 1931. Most of the earlier output of the firm was under the Drewry name with the headquarters at River Place, London E.C.2, and the variable link with Drewry is frequently confusing, as many "Drewry of London" vehicles were actually built at Baguley’s in Burton. On 18th December 1966 E. E. Baguley and the Drewry Car Co Ltd amalgamated and the company named changed to Baguley-Drewry on the 1st June 1967

In 1883 Dick Kerr & Co Ltd was formed with John Kerr to take on the railway and tramway related activities built up by W B Dick & Co Ltd in Kilmarnock (Britannia Works). The company built steam locomotives to haul tramcars; and in 1887 constructed the first section of the cable tramway system in Edinburgh. In 1897, Dick, Kerr acquired disused premises, later known as East Works, in Preston for the manufacture of electric tramcars and rolling stock under the control of a subsidiary company, the Electric Railway and Tramway Carriage Works Limited (ER&TCW), later known as the United Electric Car Company Limited. The works developed a world market for electric urban tramway systems; however drive machinery for the vehicles had to be imported from the USA. The company provided complete electric coaches for the Waterloo & City Railway in 1899, and in 1904 equipped the first main line in Great Britain to be electrified between Liverpool and Southport. In 1900, the new works known as West Works were built by the English Electric Manufacturing company on the opposite side of Strand Road to the ER&TCW works, the rear boundary of the site being along the line of the original bank of the river Ribble. The factory was built for the manufacture of electric traction equipments, power station equipments and general engineering. In 1902, these works at Preston were taken over by Dick, Kerr & Co Limited. In 1917 the company acquired Preston based tram maker United Electric Car Company creating Britain's largest tram factory, and also a controlling interest in Willans and Robinson, Rugby. In 1918, Dick, Kerr and Co Ltd became one of the founding companies of the English Electric Co Ltd.