active about 1920-1935, manufacturer of radio valves, Harrow, Middlesex, England, British Hivac Limited 1920 - 1935
active 1944-1954, laboratory apparatus & instrument maker, London, England W and J George and Becker Limited 1910 - 1954
active 1920-1964, aircraft manufacturer, Hatfield, Hertfordshire, England, British De Havilland Aircraft Company Limited 1920 - 1964
active 1920-1970, manufacturer of pharmaceuticals; chemical manufacturer, UK subsiduary of Swiss co Geigy (UK) Limited 1920 - 1970
1920-1979, electrical research organisation, British British Electrical & Allied Industries Research Association 1920 - 1979
1920-1981, manufacturer of wireless components and audio equipment , Tottenham, England Wright and Weaire Limited 1920 - 1981
1920-1982, manufacturer of radio, television, military and scientific equipment, Slough, England McMichael Limited 1920 - 1982
1945; railway employee, railway civil engineer, railway civil engineering manager, railway infrastructure manager Spoors, Richard John 1912
1952; railway employee, railway manager, railway freight manager, railway station master, railway parcels manager, railway freight manager, railway infrastructure manager Dudman, Gordon John 1901
1953; economist, railway regulatory body leader, transport regulator employee Bolt, Christopher Wesley 1910
1953; railway employee, railway manager, station master, railway manager, railway company director Evans, Mark C.E. 1906
1920-1951, hydrodynamic bearing manufacturer, Newcastle upon Tyne, Northumberland, England, British Michell Bearings Limited 1920
1920-current (2011), telecommunications, electronics and defence conglomerate, United States ITT 1920