Babcock Contractors
Balfour Beatty
Beoco
B.P.Chemicals
British Nuclear Fuels
British Steel Corporation (Corus)
Bridgewater Paper Company

Cadbury Schweppes
Carillion plc
Cegelec
Centrax
Corning Group
Cheshire County Council

Dista Products

Flintshire County Council
Foster Wheeler
Foster Wheeler Energy

Glaxochem

Hyder Consulting

I.C.I. / Ineos

Jacobs Engineering

Kimberley Clark
Kodak

Land & Marine Engineering
Lever Brother
Lucas Aerospace

McAlpine Management
McTay Engineering
Metropolitan Borough of Knowsley
Mowlem Engineering

Norwest Holst
NNC

Parkman Consulting Engineers
Parsons Brinckerhoff
PB Power

Rolls-Royce Power Engineering
Rolls-Royce Power Ventures

Scottish Power
Shaw Group
Siemens
Stone and Webster

Taylor Woodrow

Unichema Chemicals
Unilever Research

Vicars Group
Vinamul

Warwick International
Washington Group (Ex Raytheon Eng & Constructors)
Welsh Water/Dwr Cymru