Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,405 pages of information and 233,519 images on early companies, their products and the people who designed and built them.
This is a subsection of AEI
Both of the main constituent companies were involved in making electric traction equipment:
Attercliffe Common works manufactured traction motors, generators, gears and other machines such as motor-generator sets used for converting the high traction voltage to a safer voltage suitable for train lighting, heating, battery-charging and for the control equipment on locomotives and suburban electric trains.
1969 Presumably became part of English Electric-AEI Traction
1985 Attercliffe Common works closed