active 1967-1974, electrical scientific instruments manufacturer, London, England, British Cambridge Scientific Instruments Limited 1967 - 1974
1968-2006, Manufacturer/ supplier optoelectronic components, Bournemouth, English Integrated Photomatrix Limited 1968 - 2006
1968- active 2006, computer equipment manufacturer, Utah Evans and Sutherland Computer Corporation 1968
1968-present, public transport promoters, West Yorkshire West Yorkshire Passenger Transport Executive 1968
c. 1968-active 2007, designer, manufacturer and supplier positioning systems, Swindon, England Del Norte Technology Limited 1968
1965-current (2009), health education; charity (teaching aids and books for overseas), English Teaching Aids at Low Cost 1965