- ABB
- ABN Amro
- AEA Technology
- Akzo Nobel
- Alliance & Leicester
- Anglian Water
- Anglo American
- AstraZeneca
- AXA Investment Managers
- BAA
- BAE Systems
- Bank of New York Mellon
- BMW
- Britannia Building Society
- Britton
- British Standards Institution
- City & Guilds
- Compass
- Cookson
- DaimlerChrysler
- Deloitte & Touche
- Dixons
- ENRC
- FMC
- GSK
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- Halifax
- Hammersmith Hospitals NHS Trust
- Hempel
- Henkel
- Henley Management College
- HFC Bank
- HSBC
- Imperial College London
- Ingersoll-Rand
- Inmarsat
- Johnson Matthey
- Kobe Steel
- Kuwait Chemical Manufacturing
- LGC
- Lloyds Register
- M & G Group
- MITIE Group
- Motorola
- Newcastle University
- NPL
- Oxford Molecular Group
- PayPoint
- Pearl
- Petrochem Carless
- Pfizer
- PPG Industries
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- Prime Life Insurance
- QinetiQ
- Red Bull Formula 1
- Reliance Security Group
- Rohm and Haas
- Rolls-Royce
- The Royal Society
- RSA
- SAP UK
- Schlumberger
- Serco
- Shell
- Shire
- Smith & Nephew
- Sonneborn & Rieck
- South West Trains
- Tesco
- Univar
- University of Derby
- University of Greenwich
- University of Kent
- VISA
- VT
- Weir Strachan & Henshaw
- Williams Grand Prix Engineering
- Woolwich Building Society
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