| Wigan Council | Other | 2 | £79m | 27.6% | 2023-12-18 |
| Bolton Metropolitan Borough Council | Other | 2 | £55m | 19.4% | 2022-11-11 |
| CHESHIRE EAST COUNCIL | Other | 1 | £50m | 17.5% | 2017-07-19 |
| NHS Business Services Authority | Other | 4 | £34m | 11.9% | 2024-07-15 |
| Crown Commercial ServiceNew | Other | 1 | £21m | 7.5% | 2025-06-09 |
| Sefton Council | Other | 3 | £13m | 4.4% | 2025-09-30 |
| N H S Shared Business Services | Other | 1 | £10m | 3.5% | 2023-12-13 |
| The Insolvency Service | Other | 3 | £4m | 1.6% | 2023-07-27 |
| Southend-on-sea Borough Council | Other | 2 | £4m | 1.2% | 2022-10-06 |
| Barnsley Metropolitan Borough Council | Other | 1 | £3m | 1.0% | 2019-04-01 |
| Royal Borough of Kensington and ChelseaNew | Other | 2 | £2m | 0.5% | 2025-10-23 |
| Ministry of Justice | Other | 1 | £1m | 0.4% | 2021-01-08 |
| Bristol City Council | Other | 3 | £955k | 0.3% | 2021-11-26 |
| North Somerset CouncilNew | Other | 3 | £916k | 0.3% | 2025-06-19 |
| O F W A T | Other | 3 | £823k | 0.3% | 2025-10-06 |
| St Cuthbert's Catholic High SchoolNew | Other | 1 | £762k | 0.3% | 2024-07-30 |
| General Pharmaceutical Council | Other | 1 | £750k | 0.3% | 2023-10-26 |
| capitalEsourcing | Other | 1 | £429k | 0.2% | 2022-11-04 |
| De La Salle School | Other | 1 | £415k | 0.1% | 2020-05-06 |
| Rochdale Metropolitan Borough Council | Other | 1 | £354k | 0.1% | 2023-06-22 |
| NHS North of England CSU | Other | 1 | £297k | 0.1% | 2022-03-22 |
| Epping Forest District Council | Other | 1 | £279k | 0.1% | 2022-06-30 |
| London Borough of Merton | Other | 2 | £272k | 0.1% | 2021-09-07 |
| Greater Manchester Combined Authority - Greater Manchester Police | Other | 1 | £266k | 0.1% | 2023-05-25 |
| Lincolnshire County Council | Other | 2 | £227k | 0.1% | 2024-01-11 |
| Solent University | Other | 2 | £208k | 0.1% | 2021-05-06 |
| Bournemouth Christchurch and Poole Council | Other | 2 | £184k | 0.1% | 2022-03-01 |
| Bury Council | Other | 1 | £180k | 0.1% | 2022-01-17 |
| NHS HUMBER & NORTH YORKSHIRE ICB | Other | 1 | £171k | 0.1% | 2023-12-06 |
| Lancashire County Council | Other | 1 | £170k | 0.1% | 2022-02-23 |
| Ministry of Defence | Other | 1 | £159k | 0.1% | 2022-04-04 |
| Birmingham City Council | Other | 1 | £155k | 0.1% | 2021-03-09 |
| ATTAIN HEALTH MANAGEMENT SERVICES LTD | Other | 2 | £141k | 0.0% | 2022-01-06 |
| National Savings & Investments | Other | 1 | £127k | 0.0% | 2022-12-19 |
| Office of Rail and Road | Other | 3 | £120k | 0.0% | 2021-12-24 |
| London Borough of Hackney | Other | 1 | £108k | 0.0% | 2023-03-27 |
| City of London Corporation | Other | 1 | £100k | 0.0% | 2024-05-16 |
| Agilisys Limited | Other | 1 | £100k | 0.0% | 2022-08-12 |
| Competition and Markets Authority | Other | 1 | £100k | 0.0% | 2021-12-08 |
| COLLEGE OF POLICING LIMITED | Other | 1 | £100k | 0.0% | 2022-11-24 |
| National Institute for Health and Care Excellence | Other | 1 | £96k | 0.0% | 2022-11-25 |
| Hertfordshire Constabulary | Other | 1 | £76k | 0.0% | 2024-02-23 |
| Southampton Solent University | Other | 1 | £68k | 0.0% | 2021-05-28 |
| Health Research Authority | Other | 1 | £64k | 0.0% | 2022-04-12 |
| Kirklees Council | Other | 1 | £59k | 0.0% | 2017-01-30 |
| London Borough Of Barking And Dagenham Careers ServiceNew | Other | 1 | £52k | 0.0% | 2024-11-01 |
| Lichfield District Council | Other | 1 | £50k | 0.0% | 2022-04-16 |
| Leicestershire County Council | Other | 1 | £40k | 0.0% | 2017-01-24 |
| Sussex Partnership NHS Foundation Trust | Other | 1 | £38k | 0.0% | 2023-12-06 |
| Brighton and Hove City Council | Other | 1 | £38k | 0.0% | 2016-05-01 |
| London Borough of Barking and Dagenham | Other | 1 | £34k | 0.0% | 2020-12-07 |
| 7 Forces Procurement | Other | 1 | £32k | 0.0% | 2022-01-20 |
| West Yorkshire Combined Authority | Other | 1 | £24k | 0.0% | 2016-11-11 |
| University of Huddersfield e-Tendering | Other | 1 | £0k | 0.0% | 2018-11-30 |
| The Mayor and Commonalty and Citizens of the City of London | Other | 3 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 3 | £0k | 0.0% | |
| St Cuthbert's Catholic High School | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 2 | £0k | 0.0% | |
| Cheshire West and Chester Council | Other | 1 | £0k | 0.0% | |