- AD Walker
- ADM (Services) Ltd
- Anderson Construction (Aberdeen) Ltd
- ASCO
- Abbey National
- Aberdeen City Council
- Aberdeen Journals
- Aberdeenshire Council
- Alba Town Development
- Alken Construction Ltd
- Allenbuild
- Alliance & Leicester
- Amec Construction
- Asda
- Audi
- Banchory Contractors Ltd
- Burns Construction (Aberdeen) Ltd
- B&Q
- BP
- BT
- Balfour Beatty
- Bank of Scotland
- BARR
- Barratt Housebuilders
- Baxters of Speyside
- Bellway Homes
- Boots
- Bovis Lend Lease
- Bradford & Bingley
- British Airport Authorities
- Bowmer & Kirkland
- Border Construction
- Caddick Construction
- Cala
- Cameron Harris Design
- Camstruction (Scotland) Ltd
- Capital Construction (Scotland) Ltd
- Carillion
- Casey Construction Ltd
- Chap Construction (Aberdeen) Ltd
- Chard
- Clachan Construction Ltd
- Caledonian University
| - Clydesdale Bank
- Conoco
- Copthorne Hotels
- Crown Estates
- Dawn
- DM Geddes & Son Ltd
- Deeside Homes Ltd
- Discovery Homes Ltd
- Debenhams
- Dundee City Council
- Dunne Group
- ERDC
- East Dunbartonshire Council
- Grant Construction Co (Elgin) Ltd
- Glasgow Airport
- Glasgow Council
- Graham Construction
- Grampian Healthcare
- Grantside Developments
- Hunter Construction (Aberdeen) Ltd
- Harlequinns Rugby Club
- HBG Construction
- Halfords
- Hall & Tawse
- Henry Boot
- Hilton Hotels
- Historic Buildings Scotland
- Holiday Inn
- Homebase
- Interserve Project Services
- J.Smart & Co
- J.B Bennet
- Johnstons
- John Wood Group
- Keir Scotland
- Laing O'Rourke
- Lidl Food Stores
- Lloyds TSB
- MCA Homes
- McCarthy & Stone
- McDonald Hotels
- Miller Construction
- Moray Council
| - Morrison Construction
- Muir Construction
- MTM Construction
- Mansell Aberdeen
- McGregor Construction (Highlands) Ltd
- NCR
- Newcastle United Football Club
- Newcastle Falcons Rugby Club
- O'Brian Construction Ltd
- Ogilvie Construction
- Persimmon
- Pellikann (Construction) Ltd
- Peter Walker
- Raynesway Construction Services Ltd
- RB Farquar
- Robertson Construction
- Robertson Group
- Royal Bank of Scotland
- Royal Mail
- Rok Build
- Sunderland University
- Sainsbury Plc
- Scottish Amicable
- Scottish & Newcastle Breweries
- Scottish Hydro
- St Andrews Homes
- Stirling Council
- Springfield Properties
- Shell UK
- Shepherd Construction
- Sir Robert McAlpine
- Standard Life Insurance
- Stewart Milne Construction
- Taylor Woodrow
- Tennent Caledonian
- Tesco
- Thistle Hotels
- Thomas Tait & Sons
- Total Oil Marine
- United Distillers
- University of Aberdeen
- Veitchi
- Walkers
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