| Department for Education | Other | 7 | £261m | 31.0% | 2022-04-05 |
| Ministry of Justice | Other | 22 | £141m | 16.7% | 2025-06-17 |
| Department for Work & Pensions | Other | 3 | £74m | 8.8% | 2023-07-21 |
| National Highways | Other | 6 | £69m | 8.2% | 2025-10-20 |
| The Association of North East Councils Limited | Other | 4 | £63m | 7.4% | 2025-02-20 |
| Dorset County Hospital NHS Foundation Trust | Other | 2 | £47m | 5.6% | 2022-07-20 |
| GOVERNMENT PROPERTY AGENCY | Other | 2 | £33m | 3.9% | 2023-04-25 |
| Sheffield City Council | Other | 1 | £26m | 3.0% | 2022-04-28 |
| Leeds City Council - PACS | Other | 1 | £25m | 3.0% | 2022-04-08 |
| NHS Property Services Limited | Other | 3 | £21m | 2.5% | 2025-12-10 |
| Oldham Council | Other | 2 | £20m | 2.4% | 2022-05-30 |
| East Riding of Yorkshire Council | Other | 2 | £17m | 2.0% | 2022-04-07 |
| DIO Commercial | Other | 1 | £7m | 0.9% | 2022-02-25 |
| LEEDS TRINITY UNIVERSITY | Other | 1 | £7m | 0.8% | 2023-07-13 |
| Kirklees Council | Other | 1 | £7m | 0.8% | 2022-06-23 |
| Stockport Metropolitan Borough CouncilNew | Other | 1 | £7m | 0.8% | 2024-09-12 |
| East Riding of Yorkshire | Other | 1 | £6m | 0.7% | 2020-04-02 |
| NEUPC LtdNew | Other | 3 | £5m | 0.6% | 2025-06-02 |
| South Yorkshire Police and Crime Commissioner | Other | 1 | £4m | 0.5% | 2017-11-13 |
| EU SUPPLY LIMITEDNew | Other | 1 | £1m | 0.1% | 2025-08-28 |
| Herefordshire CouncilNew | Other | 1 | £485k | 0.1% | 2024-06-11 |
| Rotherham Metropolitan Borough CouncilNew | Other | 1 | £388k | 0.0% | 2025-04-23 |
| Scarborough Borough Council | Other | 1 | £361k | 0.0% | 2022-07-22 |
| Devon County CouncilNew | Other | 2 | £323k | 0.0% | 2025-04-04 |
| Rochdale Metropolitan Borough CouncilNew | Other | 1 | £146k | 0.0% | 2025-09-30 |
| Ministry of Defence | Other | 1 | £50k | 0.0% | 2021-02-15 |
| Sunderland City Council | Other | 4 | £15k | 0.0% | 2021-03-03 |
| Wirral CouncilNew | Other | 3 | £0k | 0.0% | 2026-03-19 |
| Sandwell Metropolitan Borough CouncilNew | Other | 2 | £0k | 0.0% | 2024-12-24 |
| DEFRA | Other | 2 | £0k | 0.0% | 2022-09-21 |
| Kingston Upon Hull City Council | Other | 3 | £0k | 0.0% | |
| Great Ormond Street Hospital for Children NHS Foundation Trust | Other | 3 | £0k | 0.0% | |
| Buckinghamshire Council | Other | 1 | £0k | 0.0% | |
| Hampshire County Council | Other | 6 | £0k | 0.0% | |
| Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Queen Victoria Hospital NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Red Kite Learning Trust | Other | 3 | £0k | 0.0% | |
| Norfolk County Council | Other | 1 | £0k | 0.0% | |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 1 | £0k | 0.0% | |
| Velindre University NHS Trust as the Hosting Body of NHS Wales Shared Services Partnership - SES | Other | 2 | £0k | 0.0% | |
| Carmarthenshire County Council | Other | 2 | £0k | 0.0% | |
| Cardiff Council | Other | 3 | £0k | 0.0% | |
| Leeds and York Partnership NHS Foundation Trust, trading as North of England NHS Commercial Procurement Collaborative ("NOE CPC") | Other | 1 | £0k | 0.0% | |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 1 | £0k | 0.0% | |
| Manchester City Council | Other | 1 | £0k | 0.0% | |
| The Education Alliance | Other | 2 | £0k | 0.0% | |
| Newcastle University | Other | 1 | £0k | 0.0% | |
| DONCASTER AND BASSETLAW TEACHING HOSPITALS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| The Clatterbridge Cancer Centre NHS Foundation Trust | Other | 1 | £0k | 0.0% | |