1904-1973, supplier of wholesale chemicals & drugs, England, British British Drug Houses Limited 1904 - 1973
1896-1947, scientific instrument and radio manufacturer, Cambridge W G Pye and Company Limited 1896 - 1947
active 1897-1968, laboratory apparatus and instrument maker, London, England Baird and Tatlock (London) Limited 1897 - 2012
active 1900-1960s, manufacturer of electrical measuring equipment, Hendon, England Everett, Edgcumbe and Company Limited 1905 - 1968
1898-1931, recording company; gramophone and radio manufacturer, British Gramophone Company Limited 1898 - 1931
1891-1987, physiological instrument maker, London, England, British C F Palmer (London) Limited 1891 - 1987
1892-1974, manufacturer of radios, televisions, batteries, white goods and computers, Philadelphia, America Philco Corporation 1892 - 1974
active 1898-1968, compressor/engineering product manufacture, High Wycombe, Buckinghamshire, British Broom and Wade Limited 1898 - 1968
1890-1932, manufacturer of gas engines, Ashton-under-Lyne, England National Gas Engine Company 1890 - 1932
1895-c.1950, gas and laboratory equipment manufacturer, Warrington, Cheshire, England Fletcher Russell and Company Limited 1895
active 1904-1948, optical instrument maker (spectroscopes etc.), London, England Adam Hilger Limited 1904 - 1945
1903-, manufacturer of scientific instruments, Acton, London; Watford, England S G Brown Limited 1903
1903-1940s , camera manufacturer, retailer, Westminster, London, England Westminster Photographic Exchange Limited 1903
1897-1927, Engineering Company, Elswick, Newcastle upon Tyne Armstrong, Whitworth and Company 1897 - 1927
1901-1987, electrical & electronic engineering equipment manufacturer, England, British Ferranti Limited 1901 - 1987
1895-2013, manufacturer of cine cameras, Braille transcribers and electronic components, Camden Town, London Ernest F. Moy Limited 1895 - 2013
1901-1951, optical, lens, camera and cinematographic equipment manufacturer, Birmingham Aldis Brothers 1901 - 1951
1903-1955, manufacturer of fire extinguishing equipment, London & Feltham, England Minimax Limited 1903 - 1955
1899-1963, electronic communication equipment manufacturer, England, British Marconi Wireless Telegraph Company Limited 1900 - 1963
1894-c.1950s, scientific instrument and radio manufacturers, Croydon, England Gambrell Brothers Ltd. 1894 - 1959
