Acatriza
Belgium
Canada
France
Cermany
Commonwealth Engineering
ACEC
BG Chooo
Alsthom (James Richards)
KAN
Hollard
Philips
Hawker Siddeley Canada
CGA
Voith
Bombardier/Worthington
Saxby
Serete
:
Trindel
Hong Kong
Davio Boag
HK United Dockyard Jardines/Balfour Beatty
China Engineers/Parolle/ Hong Kong Electric
Ryoden Electrical
Engineering
Young's Engineering
Cable & Wireless Systems
American Engineering Corp
Reiss Bradley
Shewan Tomes
Italy
Intermetro
Ansaldo
Sadelmi
Wabco Westinghouse
GAI
Aernarelli
Japan
Sweden
Kinsho Mataiohi
Toa Eleotrio
Kinki Electrical
Asea-Ekman
Ericcson
Construction
HMP Consort
Switzerland
Schindler
Autelca
Otto Wolf
Siemens
Orenstein & Koppel
Linke-Hoffman-Busch
AEG Telefunken/Zung Fu
BBC Brown Boveri
United Kingdom
Metro Cammell
Drake & Scull Tiltman Langley
Westinghouse Brake & Signal Co
Bell Punch
Pye TUC
Parolle
GEC Transportation/ GEC HK including GEC Traction, GEC Rectifiers, GEC Elliott Automation, GEC General Signal, GEC Telecommunications, Express Lift, Woods, Hawker Siddeley Power Engineering, Marryat & Scott, Automatic Revenue Controls, Vickers
US
Otis Elevator Co Westinghouse Electric Cubic Western
GRS International
Westinghouse Air Brake Pullman Standard