Lambda Electronics

of Abbey Barn Road, High Wycombe
c1989 Formation of Coutant-Lambda, presumably reflecting the bringing together of Lambda Electronics and Coutant Electronics by their owner Unitech.
Presumably formed Nemic-Lambda, Japanese power supply company, which later became TDK-Lambda
1991 Lambda Electronics Ltd (of Reading) was incorporated as a private company[1]
1996 Owned by Unitech; Siebe plc acquired 50.6 percent of Unitech in 1996[2]
Became a subsidiary of Invensys
2000 Name of Lambda Electronics Ltd was changed to Vapour Management Systems Ltd, manufacturer of activated carbon cloth for wound dressings and filters; sold Interlube Systems[3]