- AIRBUS
- AMEC NUCLEAR
- A PLANT
- ABB
- AGGREKO
- AINSCOUGH CRANE HIRE
- AIR PRODUCTS
- ALSTOM POWER
- ALUMINIUM BAHRAIN
- AMEY CONSTRUCTION
- ASAHI GLASS FLUOROPOLYMERS
- ASSOCIATED BRITISH PORTS
- ATOFINA
- AVERY BERKEL
- AVESTA SHEFFIELD
- BICC CABLES
- BALFOUR BEATTY
- BALFOUR KILPATRICK
- BASF
- BASS
- BAXI
- BEAUFORT AIR SEA RESCUE
- BECK & POLLITZER
- BIFFA WASTE SERVICES
- BIRSE CONSTRUCTION
- BOC
- BRITISH GAS
- BRITISH GYPSUM
- BRITISH STEEL
- BRITISH TELECOM
- BRITISH WATERWAYS
- BSD STEELSTOCK
- CADBURYS
- CAMMELL LAIRD
- COCA-COLA
- COSTAIN CONSTRUCTION
- DAVID BROWN ENGINEERING
- DOWDING & MILLS
- EVC COMPOUNDS
- ELF ATOCHEM
- FINNING
- FLEXSYS
- FLUOR
- FMC CORPORATION
- FORD MOTOR CO
- GCA
- GEC
- GLAXO WELLCOME
- HANSON CEMENT
- HEALTH & SAFETY EXECUTIVE
- HEWDEN PLANT HIRE
- HEYSHAM POWER STATION
- HM PRISONS
- HOOGOVENS ALUMINIUM
- HYDER
- INGERSOLL RAND
- INITIAL
- JJB SPORTS
- JOHN LAING
- KELLOGS
- KIMBERLEY CLARKE
- KMI
- KONE LIFTS
- KVAERNER
- LEYLAND VEHICLES
- MAGNOX
- McALPINE
- MINISTRY OF DEFENCE
- MOBIL OIL
- MONSANTO
- NATIONAL NUCLEAR CORPORATION
- NORTHROP GRUMANN
- NATIONAL GRID
- NESTLE
- P & O
- PETER BROTHERHOOD
- PETROBRAS
- PILKINGTON GLASS
- PIRELLI
- POCHIN
- PORTAKABIN
- POWER GRID CORP OF INDIA
- RANK HOVIS
- ROLLS-ROYCE
- ROYAL NAVY
- SALVESSEN BRICK
- SCHLUMBERGER
- SCOTTISH NUCLEAR
- SCOTTISH POWER
- SELLAFIELD
- SEVERFIELD
- SHELL OIL
- SIEMENS
- SMURFIT
- SONY
- SPILLERS FOODS
- TATA STEEL
- TAYLOR WOODROW
- THE POST OFFICE
- TILCON LIMITED
- UNION ELECTRIC AKERS
- UNITED PAPER MILLS
- UNITED UTILITIES
- VAUXHALL MOTORS
- VIRGIN TRAINS
- WATSON STEEL
- WEIR PUMPS
- WILLIAM HARE
- WHITBREAD
- WIMPEY
- WYCO
- ZENECA