1900-1995, manufacturer of earthenware; manufacturer of majolica, Stoke on Trent, England Grimwades Limited 1900 - 1995
1901-1950 (when line closed), railway company, Queenborough to Leysdown Sheppey Light Railway 1901 - 1950
1901-1937, tramways company, British Isle of Thanet Electric Tramways & Lighting Company Limited 1901 - 1937
1901-1968, painter; printmaker; scenographer; poster artist, French Cassandre, Adolphe Mouron 1901 - 1968
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
1901-1951, optical, lens, camera and cinematographic equipment manufacturer, Birmingham Aldis Brothers 1901 - 1951