- +3 Architects
- Aecom
- Akenside Developments
- Appleyard and Trew
- Armstrong Rhead Partnership
- Artis Consulting
- Arup
- B.E.S.
- Bellmore Consulting
- Blyth County Council
- Bowmer and Kirkland
- BT
- CAD 21
- Chapman Bathurst
- Chardon Management
- Clugston Construction
- CMC
- Connell Mott McDonald
- Continental Conveyors Limited
- Cundall Johnston Partners
- Dean Clough Estates
- DEC Building Services
- Desco
- DSSR
- Easy Hotel Group
- Faulkner Browns
- Faithful & Gould
- Fordgate Developments
- Gentoo
- Gleeds
- Glenrose Developments
- GMI Construction
- Harkin Associates
- Hartlepool Sixth Form College
- Henderson Warnock
- Hewertson Jenkinson Partnership
- Highbridge Properties
- Hill Lawrence
- HMPrisons
- Hollygarth Care Homes
- Howard Russell Construction
- ICA
- J.H. Partnership
- Jackson Coulson Partners
- Kier
- Kinetic Engineering
- Mansell Contruction Ltd
- Max Fordham Partnership
- Miller Contruction UK Ltd
- NASUWT
- New Forest Construction
- Nissan
- Northern Construction Group
- Northern Rock
- NPIA
- Npower
- Operon
- Preistley & Taffs
- Prior Pursglove / Askham Bryan Colleges
- R.J. Dodds & Sons
- R.W Gregory & Partners
- Red Box Design
- Richmond Council
- Robertson Construction
- Royal Bank of Scotland
- Royal Sun Alliance
- RPS Consulting
- Ryder company
- Sage
- Sansome Hall Architect
- Scott Wilson
- Services Design Partnership
- Shepherd Construction Limited
- Silverlink Properties
- South Tyneside Council
- Space Design
- Stephen Shear
- STP Construction
- Sunderland Council
- Surgo Construction Ltd
- Taylor Woodrow
- Terrace Hill Developments
- The Biurock Partnership
- Theatre Royal
- Thomas Johnstone Ltd
- Tolent Construction Ltd
- Turner & Townsend
- UK Land Estates
- W.H. Smith
- White Young Green
- Work Interiors
- WSP
