Lindley Thompson Transformer and Service Co
Manufacturer of electrical transformers, of Slough
1933 Company founded by John Lindley Thompson[1].
1949 Absorbed the Langley Welding Co so it could have complete construction of transformer shells in-house.
1951 Private company.
1951 Company made public.
1961 Manufacturers of air and oil-cooled power transformers and electrical equipment.
By 1987 was part of the Yorkshire Switchgear Group[3]