WADS Group
WAvon Rubber
WBabcock International
WBritish Aerospace
WCAP Scientific
WCarron Company
WChemring Group
WCoventry Ordnance Works
WDefence Aviation Repair Agency
WEdgar Brothers
WIntelligent UK Holdings Limited
WIPL Information Processing Limited
WJCB (company)
WKelvin Hughes
WMaxim Nordenfelt Guns and Ammunition Company
WMBDA
WRacal
WRolls-Royce Holdings
WSelex ES
WVickers Shipbuilding and Engineering
WWilson-Pilcher
WYarrow Shipbuilders Limited