This company originated in a firm making scientific instruments established by William Elliott in the early 19th century. It became Elliott Brothers in 1854, and Elliott Brothers (London) Ltd. in 1917. A merger with Associated Automation Ltd. in 1957 resulted in a further change of name to Elliott-Automation Ltd. It was merged with English Electric in 1967. During the 20th century its output expanded to encompass computers and flight automation equipment.