| Gowling WLG | Southwark, Bermondsey and Old Southwork, Bermondsey Old Southwork | 4 | 6 |
| Norton Rose Fulbright | Southwark, Bermondsey and Old Southwork, Bermondsey Old Southwork | 4 | 4 |
| SSE Business Energy | Perth | 22 | 6 |
| Total Gas & Power | London | 8 | 42 |
| Edf Energy | Exeter | 8 | 10 |
| Ridge & Partners | Berkshire, Reading | 4 | 38 |
| Devonshires Solicitors | London | 4 | 5 |
| Shoosmiths | Nottingham, Nottinghamshire | 4 | 5 |
| Herbert Smith Freehills | London | 4 | 3 |
| CMS Cameron Mckenna Nabarro Olswang | City of London | 4 | 3 |
| Arden University | Coventry | 4 | 2 |
| Michael Dyson Associates | West Yorkshire, Holmfirth | 3 | 13 |
| WCS Environmental | Gloucester | 3 | 2 |
| Dukes Bailiffs | Stone, Staffordshire | 3 | 3 |
| Furniture Resource Centre | Liverpool | 3 | 3 |
| Kyle Smart Associates | Sewell, Bedfordshire | 3 | 3 |
| Bell Decorating Group | Airdrie | 2 | 33 |
| MITIE Property Services | Swindon | 2 | 23 |
| Ian Williams | South Gloucestershire, Bristol | 2 | 19 |
| Pennington Choices | Warrington | 2 | 18 |
| Onsite Central | Worcester | 2 | 11 |
| Bevan Brittan | Bristol | 2 | 11 |
| Travis Perkins Trading | Northampton | 2 | 12 |
| Trowers & Hamlins | Greater London | 2 | 10 |
| Harmony Fire | Sherborne, Somerset | 2 | 10 |
| Shakespeare Martineau | Birmingham | 2 | 10 |
| Weightmans | Liverpool | 2 | 6 |
| TF Jones Property Services | Merseyside | 2 | 6 |
| Tolent Construction | Gateshead | 2 | 4 |
| Forbes Solicitors | Blackburn | 2 | 3 |
| Muckle | Tyne and Wear | 2 | 2 |
| Penningtons Manches Cooper | London | 2 | 2 |
| Bernard Taylor Partnerships | Cheshire, Stockport | 2 | 2 |
| Baltic Training Services | Hartlepool | 2 | 2 |
| Brabners | Liverpool | 2 | 2 |
| BTP Architects Bernard Taylor Partnerships | Stockport, Cheshire | 2 | 2 |
| Buildtherm Services | Potters Bar | 2 | 2 |
| East Norfolk Plumbing & Heating | Norwich | 2 | 2 |
| Hedley Visick | Eastbourne | 2 | 2 |
| Mci Developments | Doncaster | 2 | 2 |
| Middlesbrough College Northern Skills Group | Middlesbrough | 2 | 2 |
| Perrin Myddelton | Harpenden | 2 | 2 |
| Response Building Maintenance Services Scotland | Livingston, West Lothian | 2 | 2 |
| Roythornes Solicitors | Spalding | 2 | 2 |
| Zero C | Dorset, Poundbury | 2 | 2 |
| Baily Garner | Greater London | 7 | 10 |
| Arcus Consulting | Greater Manchester | 6 | 16 |
| CPC Project Services | Holborn | 6 | 16 |
| Thornton Firkin | Birmingham | 6 | 2 |
| Novus Property Solutions | Staffordshire | 4 | 32 |
| AECOM | Wimbledon | 3 | 137 |
| Arcadis | Islington | 3 | 79 |
| Faithful Gould | Leeds | 3 | 44 |
| Calfordseaden | Orpington | 3 | 20 |
| Align Property Partners | Northallerton | 3 | 15 |
| Robinson Low Francis | Stevenage | 3 | 14 |
| Gazprom Energy | Manchester | 3 | 18 |
| Identity Consult | Preston | 3 | 8 |
| RG P | Leicester | 3 | 7 |
| Bond Bryan Architects | Greater London | 3 | 6 |
| WT Partnership | Croydon | 3 | 5 |
| Anderton Gables | Preston | 3 | 4 |
| Bwa Europe | Leeds | 3 | 5 |
| Watson Batty Architects | Leeds | 3 | 4 |
| Hunter & Partners | Hammersmith and Fulham | 3 | 3 |
| Austin Smith Lord | Cardiff | 3 | 2 |
| Capita GL Hearn | Westminster | 3 | 3 |
| Derek Evans Partnership | Walsall | 3 | 3 |
| Henry Riley | Cambridge | 3 | 3 |
| Jefferson Sheard Architects | Sheffield | 3 | 3 |
| MH Architects | Chichester | 3 | 3 |
| Michael Eyres Partnership | Bradford | 3 | 3 |
| Saunders Boston Architects | Cambridge | 3 | 3 |
| Barton Willmore | Leeds | 2 | 6 |
| Termrim Construction | Huddersfield | 2 | 6 |
| Halsall Lloyd Partnership | Liverpool | 2 | 3 |
| Bauman Lyons Architects | Leeds | 2 | 2 |
| Holden Building Solutions | Lancashire | 2 | 2 |
| Chiles Evans Care Architects | Sheffield | 2 | 2 |
| Nicholson Bros Electrical Contractors | Edinburgh | 2 | 2 |
| Norton Mayfield Architects | Sheffield | 2 | 2 |
| Openview Group | Havering | 2 | 2 |
| Paul Testa Architecture | Sheffield | 2 | 2 |
| Tadw Architects the Architectural Design Workshop | Greater Manchester | 2 | 2 |
| Tatlow Stancer Architects | Sheffield | 2 | 2 |
| CLC Contractors | Hampshire | 1 | 32 |
| Banner Banner Group | Wakefield | 1 | 26 |
| Neo Property Solutions | West Yorkshire | 1 | 10 |
| Arden Winch | South Yorkshire | 1 | 12 |
| Arc Group London | Greater London | 1 | 12 |
| MD Building Services | Bristol | 1 | 7 |
| Sutcliffe Projects | Merseyside | 1 | 6 |
| Hardyman Group | West Midlands | 1 | 5 |
| Caddick Construction | West Yorkshire | 1 | 5 |
| Ventro | Devon | 1 | 5 |
| Echelon Consultancy | Herts | 1 | 4 |
| BDP Building Design Partnership | Greater Manchester | 1 | 1 |
| BM3 Architecture | West Midlands | 1 | 1 |
| BTP Architects | Cheshire | 1 | 1 |
| Civic Engineers | Greater Manchester | 1 | 1 |