active 1977- 1985, infrared imaging equipment manufacturer, Leighton Buzzard, Bedfordshire, England AGA Infrared Systems Limited 1977 - 1985
active 1977-current (2008), pharmaceutical manufacturer, Roth, Bavaria, Germany, German Nutrichem GmbH 1977
1941-1977, electronics, solar power, radio and television manufacturer, Los Angeles Hoffman Electronics Corporation 1977
1976-current (2010), commmercial and consumer computer and electronics manufacturer, California, American Apple Inc 1976
1977-, civil and military aircraft/ weapon/ communication system manufacturers, England British Aerospace plc 1977
1975 - present (2010), residential property developer, England Hillreed Residential Developments 1975