| PBS Construction North East | North Humberside, Hull | 5 | 7 |
| Options Autism 1 | Bolton | 3 | 3 |
| East Yorkshire Motor Services | Kingston upon Hull, City of, Hull | 5 | 3 |
| Baydale Control Systems | Darlington | 4 | 4 |
| Shield Security | Hull, Kingston upon Hull, City of | 3 | 3 |
| United Security | Worksop, Bolsover | 3 | 3 |
| Zurich Municipal | Fareham, Farnborough | 2 | 71 |
| Novus Property Solutions | Stoke on Trent | 2 | 32 |
| ESRI | Buckinghamshire, Aylesbury | 2 | 25 |
| Bunzl | Leicester, Wednesbury | 2 | 18 |
| L & K Warcup Construction | East Riding Of, Seaton Hull | 2 | 3 |
| Hollies Hica | Hessle | 2 | 2 |
| Andidrain | Cumbria | 2 | 2 |
| Landplan | Hull | 2 | 2 |
| Russells Groundcare | Brough, Gilberdyke | 2 | 2 |
| Selby College | Selby | 2 | 2 |
| Tilson Scaffolding | Hull | 2 | 2 |
| CDW | London | 6 | 71 |
| Softcat | Marlow | 2 | 176 |
| Barnardos | Beverley | 2 | 32 |
| Colas | Crawley | 2 | 28 |
| Essity | Dunstable | 2 | 9 |
| Diversey | Northampton | 2 | 5 |
| Bituchem Building Products | Cinderford | 2 | 4 |
| Acklams Coaches | Beverley | 2 | 3 |
| James A Jobling | Newcastle upon Tyne | 2 | 2 |
| Sas Lining Services | Hull | 2 | 2 |
| Wrights Civil Engineering | Hull | 2 | 2 |
| Asphalt Surface Dressing Services | Ampthill | 2 | 2 |
| Cloudcoco | Tadcaster | 2 | 2 |
| Connexin | North Humberside | 2 | 2 |
| Graitec | Southampton | 2 | 2 |
| Hull Training & Adult Education | North Humberside | 2 | 2 |
| Humber NHS Trust | Woodlands | 2 | 2 |
| Miles Kingsport | Witham | 2 | 2 |
| North Holderness Community Transport | Hornsea | 2 | 2 |
| Nynas | Ellesmere Port | 2 | 2 |
| SPS Group | Hull | 2 | 2 |
| Thermal Road Repairs | Alsager | 2 | 2 |
| Wold Construction | North Humberside | 2 | 2 |
| Capita Business Services | Cardington | 1 | 121 |
| Ove Arup & Partners | Fitzroy Street London | 1 | 72 |
| Bytes Software Services | Leatherhead | 1 | 70 |
| Northgate Public Services | Warrington | 1 | 44 |
| Grant Thornton | London | 1 | 38 |
| Oracle Corporation | Reading | 1 | 33 |
| Arco | Hull | 1 | 30 |
| Lyreco | Telford | 1 | 21 |
| Compass Minerals | Winsford | 1 | 11 |
| SSE Contracting | Reading | 1 | 10 |
| Change Grow Live Services | Tower Point | 1 | 12 |
| Arden Winch | Sheffield | 1 | 12 |
| Skills Network | Selby | 1 | 9 |
| Farid Hillend Engineering | Inverkeithing | 1 | 8 |
| Granicus Firmstep | London | 1 | 7 |
| Icl UK Sales | Loftus | 1 | 9 |
| Restore Datashred | Purfleet | 1 | 7 |
| Geo Houlton | North Humberside | 1 | 10 |
| British Red Cross | London | 1 | 11 |
| Eon Energy Solutions | Coventry | 1 | 9 |
| Vaisala | West Midlands | 1 | 7 |
| Acorn Care & Education | Bolton | 1 | 8 |
| Coventry University | Coventry | 1 | 8 |
| JC Peacock | Ayr | 1 | 7 |
| Access | Colchester | 1 | 5 |
| Kedleston Schools | Uxbridge | 1 | 7 |
| Bryn Melyn Care | Bolton | 1 | 5 |
| NWT Supplies | Aughton | 1 | 5 |
| Wright Civil Engineering | Kingston upon Hull | 1 | 8 |
| Lane Rental Services | York | 1 | 8 |
| Gas | Hull | 1 | 6 |
| Flowbird Smart City | Bournemouth, Christchurch and Poole | 1 | 7 |
| Childcare | Slough | 1 | 4 |
| Chipside | Chippenham | 1 | 5 |
| Mis Active Management Systems | Gadbrook Business Centre | 1 | 5 |
| Priory Education Services | London | 1 | 6 |
| HW Martin Safety Fencing | Alfreton | 1 | 3 |
| Kiwa | Cheltenham | 1 | 3 |
| Selden Research | Buxton | 1 | 3 |
| York Pullman Bus | York | 1 | 3 |
| City Health Care Partnership CIC | Hull | 1 | 2 |
| Preservica | Vale of White Horse | 1 | 2 |
| Sodexo Motivation Solutions | Milton Keynes | 1 | 2 |
| Viking Hardware | Kingston upon Hull | 1 | 2 |
| Westmoreland Civil Engineering | Doncaster | 1 | 2 |
| LHL Group | York | 1 | 2 |
| Smi Group | Haslemere | 1 | 2 |
| Denis Rawlins | Birmingham | 1 | 2 |
| AC Price Engineering | Ingleton | 1 | 1 |
| Actian Europe | Slough | 1 | 1 |
| Afterwood | Newark and Sherwood | 1 | 1 |
| Atl Commercial Kitchens | Hull | 1 | 1 |
| Barnardos Dsi Service | East Riding Of | 1 | 1 |
| Bauer Media | Hull | 1 | 1 |
| Bedspace | Leeds | 1 | 1 |
| Beverley Bookshop | Beverley | 1 | 1 |
| Beverley Grange Molescroft Nursing Home Holdings | Beverley | 1 | 1 |
| Bishop Burton College | North Humberside | 1 | 1 |
| Blenheim Cleaning Services | Kingston upon Hull, City of | 1 | 1 |
| Blink Agency | Hull | 1 | 1 |