- Akenside Developments
- Appleyard and Trew
- Armstrong Rhead Partnership
- Arup
- B.E.S.
- Bellmore Consulting
- Blyth County Council
- Bowmer and Kirkland
- CAD 21
- Clugston Construction
- Continental Conveyors Limited
- Cundall Johnston Partners
- CMC
- Dean Clough Estates
- DEC Building Services
- Desco
- DSSR
- Fordgate Developments
- Gentoo
- Gleeds
- Glenrose Developments
- Hewertson Jenkinson Partnership
- Highbridge Properties
- HMPrisons
- Hollygarth Care Homes
- Howard Russell Construction
- J.H. Partnership
- Jackson Coulson Partners
- Kier
- Mansell Contruction Ltd
- Miller Contruction UK Ltd
- New Forest Construction
- Nissan
- Northern Rock
- NPIA
- Npower
- Operon
- Preistley & Taffs
- Prior Pursglove / Askham Bryan Colleges
- R.J. Dodds & Sons
- R.W Gregory & Partners
- Richmond Council
- Royal Sun Alliance
- Sage
- Services Design Partnership
- Shepherd Construction Limited
- Silverlink Properties
- Stephen Shear
- STP Construction
- Sunderland Council
- Surgo Construction Ltd
- Taylor Woodrow
- Terrace Hill Developments
- Tolent Construction Ltd
- UK Land Estates
- White Young Green
- W.H. Smith
- Work Interiors
- WSP
