1900-1995, manufacturer of earthenware; manufacturer of majolica, Stoke on Trent, England Grimwades Limited 1900 - 1995
1900-1915, manufacturer of pharmaceuticals, Chicago, United States Abbott Alkaloidal Company 1900 - 1915
1900-1907, manufacturer of electrical measuring equipment, Glasgow, Scotland Kelvin and White 1900 - 1907
1900-1998, electrical/electronic measurement instrument manufacturer, England Marconi Instruments Limited 1900 - 1998
1899-1980, businessman; founder of Butlins holiday camps, British Butlin, Sir William Heygate Edmund Colborne 1899 - 1980
active 1900s-2009, manufacturer of dyestuffs, Bromborough, England Brotherton and Company Limited 1900 - 2009