Date
1900-1907, manufacturer of electrical measuring equipment, Glasgow, Scotland

Kelvin and White

1900 - 1907

1878-1929, manufacturer of electrical equipment, Chelmsford, England

Crompton and Company Limited

1878 - 1929

1883-1890, manufacturer of electrical equipment, London & Oldham, Manchester, England

S Z de Ferranti

1883 - 1890

1881-1995, manufacturer of electrical equipment, United States

Western Electric Company, Inc

1881 - 1995

active 1890-1901, manufacturer of electrical equipment, London & Manchester, England

S Z de Ferranti Limited

1890 - 1901

1883-1885, manufacturer of electrical equipment, London, England

Ferranti Hammond Electric Light Company

1883 - 1885

1896-1959, electrical equipment manufacturer, British

British Thomson-Houston Company Limited

1896 - 1959

1882-1915, manufacturer of electrical equipment, Millwall, London

Electric Power Storage Company Limited

1882 - 1915

1883-1996, manufacturer of electrical equipment, Germany

Allgemeine Elektricitats-Gesellschaft

1883 - 1996

1926-1960, manufacturer of electrical & electronic radio and tv equipment, Southend-on-Sea, England

E K Cole Limited

1926 - 1960

1945-1985, manufacturer of electronic equipment (acoustic devices), United Kingdom

Dawe Instruments Limited

1945

1882-1883, manufacturer of electrical equipment, London, England

Ferranti, Thompson and Ince Limited

1882 - 1883

active 1924-1940s, manufacturer of electrical equipment, Birmingham, England

Telsen Electric Company Limited

1924

active until 1955, manufacturer of electrical equipment, Newark, United States

Automatic Manufacturing Corporation

Unknown - 1955

1991-current (2011), manufacturer of electrical equipment, Malmesbury, Wiltshire, England

Dyson Appliances Limited

1991

1924-current (2022), manufacturer of electrical equipment, Berlin, Germany

Beyerdynamic GmbH & Co KG

1924

1927-current (2007); manufacturer of electrical equipment

Crompton Parkinson Limited

1827

1912-current (2009), electronics manufacturer, Japan

Sharp Corporation

active c. 1965-1979?, manufacturer of electrical equipment, United States

James G Biddle Company

active 1975-1980?, manufacturer of electrical equipment, Pala Alto, United States

Cary Products

1922- current (2012), manufacturer of electrical equipment, Birmingham, England

Lodge-Cottrell Limited

active 1930-1937, manufacturer of electric motors and electrical equipment, London, England

Normand Electrical Company