Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 132,820 pages of information and 210,445 images on early companies, their products and the people who designed and built them.
of Anaconda Works, Salford, and Church Road, Leyton (1919)
of Church Road, Leyton, London, E10. Telephone: Leytonstone 3636. Telegraphic Address: "Lewcos, London"; and 24 Queen Anne's Gate, Westminster, London, SW1. (1937). Also at Tenax Road, Trafford Park, Manchester
1909 Public company.
1914 Copper wire drawers, dynamo and instrumental wire coverers and cable makers. 
1919 Issue of preference shares
1920 Acquired land at Trafford Park, Manchester
By 1921 the company manufactured electric cables, wire, and flex; it employed 1,306 workers.
1929 Patent - Improvements in or relating to electrical inductances. 
1932 Patent - Improvements in or relating to sleeving for electric conductors. 
At some point acquired Vactite Wire Co
1937 Advert in British Industries Fair Catalogue as Maker of C. M. A. (Cable Makers' Association) Cables. Manufacturers of Electric Wires and Cables for all purposes. (Electricity: Industrial and Domestic Section - Stand Nos. Cb.501 and Cb.400)
1937 Listed Exhibitor - British Industries Fair. Insulated Wires and Strips for every electrical purpose. Cotton, Silk, Enamel, Paper and Asbestos Insulations. Copper Braids and Cords. Telephone Cords. Bell Wires. Resistance Wires. Compressed Strands. Laminated Strips, etc. (Stand No. Cb.610) 
1937 Insulated electric conductors. "Lewcos" Insulated Wire and Strips. 
WWII Manufactured degaussing strips, wires for heating airmen's flying suits, as well as wires for aircraft and communications
1960s It was the largest employer of labour in Leyton, and the largest manufacturer of insulated wire in Europe.
1961 Manufacturers of insulated wires and strips for wiring of electrical and wireless apparatus of all descriptions. 3,000 employees.