| Tarmac Trading | West Midlands, Alfreton, South Normanton | 9 | 42 |
| Hinko Construction | Bradford | 8 | 13 |
| Grafton Merchanting | Cowley, Oxford, South Cowley | 3 | 22 |
| Galliford Try Infrastructure | Rugby, Wakefield, Hinckley | 3 | 11 |
| Toman Contracting | Cumbria, Egremont, Copeland | 3 | 3 |
| Compass Minerals | Winsford | 3 | 11 |
| Icl UK Sales | Loftus | 3 | 9 |
| JC Peacock | Ayr | 2 | 7 |
| Seymour Civil Engineering Contractors | Hartlepool | 2 | 5 |
| PBS Construction NE | Hull, Kingston upon Hull, City of | 2 | 10 |
| Multevo | Darwen | 2 | 4 |
| James A Cuthbertson | Biggar, South Lanarkshire | 2 | 4 |
| Vale Engineering York | Harrogate, York | 2 | 4 |
| Harsh | East Riding of Yorkshire, York | 2 | 3 |
| Bermar Building | Bradford | 2 | 3 |
| Event Traffic Control | Thirsk | 2 | 2 |
| Derwentside College | Consett, County Durham | 2 | 2 |
| Richard Drake Contracting | Keighley | 2 | 2 |
| Walter Thompson Contractors | Northallerton | 10 | 5 |
| Lane Rental Services | York | 9 | 8 |
| F Parkinson | Blackpool | 8 | 9 |
| Tom Willoughby | Northallerton | 8 | 13 |
| Simpson York | York | 7 | 4 |
| William Birch | York | 5 | 4 |
| Softcat | Wycombe | 3 | 176 |
| Civica | Southwark | 3 | 86 |
| Open University | Milton Keynes | 3 | 10 |
| Colas | Crawley | 2 | 28 |
| Edmundson Electrical | Scarborough | 2 | 14 |
| Hanson Quarry Products Europe | Avon | 2 | 12 |
| Boxxe | Hambleton | 2 | 7 |
| Humankind Charity | Bowburn | 2 | 8 |
| Pacy & Wheatley | Doncaster | 2 | 6 |
| Hall Construction Services | Rushyford | 2 | 4 |
| Cemex UK Operations | Egham | 2 | 6 |
| Brammer Buck & Hickman | Middlesbrough | 2 | 2 |
| Jack Tighe | Gainsborough | 2 | 4 |
| Avco Systems | Slough | 2 | 2 |
| Richardsons | Bradford | 2 | 2 |
| Insight Direct | Hillingdon | 1 | 121 |
| Bytes Software Services | Mole Valley | 1 | 70 |
| Jacobs | London | 1 | 62 |
| Esh Construction | Bowburn | 1 | 34 |
| Allstar Business Solutions | Swindon | 1 | 23 |
| Motus Commercials Derby | Derby | 1 | 27 |
| Community Integrated Care | Halton | 1 | 29 |
| Motus Commercials | Halesowen | 1 | 18 |
| Treka Bus | Calderdale | 1 | 17 |
| Whittle Programmed Maintenance | Birkenhead | 1 | 15 |
| Jba Consulting | Craven | 1 | 15 |
| Whale Tankers | Solihull | 1 | 11 |
| Gap Group | Glasgow | 1 | 11 |
| Daisy Corporate Services Trading | Pendle | 1 | 9 |
| Edenred UK Group | London | 1 | 11 |
| 1ST Coverall | Maidstone | 1 | 7 |
| Kiely Bros | Birmingham | 1 | 12 |
| Volkerlaser | Hoddesdon | 1 | 9 |
| Cromwell Polythene | Leeds | 1 | 8 |
| Thomas Armstrong Construction | Allerdale | 1 | 9 |
| RH Fullwood | Pontefract | 1 | 8 |
| Gbuk | Selby | 1 | 8 |
| Click Travel | Birmingham | 1 | 7 |
| Jointline | Lincoln | 1 | 6 |
| Dynniq | Basingstoke | 1 | 5 |
| Thomson Reuters | Tower Hamlets | 1 | 11 |
| Associated Waste Management | Leeds | 1 | 8 |
| JPCS | Malpas | 1 | 6 |
| NWT Supplies | Aughton | 1 | 5 |
| Zellis | Peterborough | 1 | 4 |
| JP Developers | Hull | 1 | 12 |
| Swarco Traffic | Richmond | 1 | 5 |
| Oleeo | Merton | 1 | 4 |
| Tuskerdirect | Watford | 1 | 4 |
| Aa Global Language Services | Kingston upon Hull | 1 | 5 |
| Aon Hewitt | City of London | 1 | 3 |
| Sunbelt Rentals | Warrington | 1 | 3 |
| Trapeze Group | Chippenham | 1 | 3 |
| Metcalfe Plant Hire | Eden | 1 | 9 |
| Bevan Motor Bodies | Wednesbury | 1 | 3 |
| Ihs Global | Bracknell Forest | 1 | 3 |
| FCC Environment | Northampton | 1 | 2 |
| Hire Station | Bristol | 1 | 2 |
| Peacock Salt | South Ayrshire | 1 | 2 |
| Premier Roadmarkings | Sedgefield | 1 | 2 |
| Real Wrap | Bristol, City of | 1 | 2 |
| SME Hci | Romford | 1 | 2 |
| Wilf Nobles Construction | Scarborough | 1 | 2 |
| Itl North East | Gateshead | 1 | 2 |
| Bespoke Professional Development & Training | Hambleton | 1 | 2 |
| Howard Civil Engineering | Leeds | 1 | 2 |
| Academy21 | Powys | 1 | 1 |
| Ahformes | Accrington | 1 | 1 |
| Applied Card Technologies | Wiltshire | 1 | 1 |
| Aspect CPM | Bedale | 1 | 1 |
| Assetworks LLC | | 1 | 1 |
| Blueberry Academy | York | 1 | 1 |
| Bronze Software Labs | Telford and Wrekin | 1 | 1 |
| Carbon8 | Consett | 1 | 1 |
| Community First Yorkshire | York | 1 | 1 |
| Contract Data Research | High Peak | 1 | 1 |