| NHS Commercial SolutionsNew | Other | 1 | £14m | 36.5% | 2024-09-01 |
| NHS EnglandNew | Other | 2 | £8m | 20.7% | 2025-07-01 |
| Espo | Other | 5 | £5m | 12.7% | 2022-04-20 |
| NHS Improvement (NHS Trust Development Authority) | Other | 1 | £4m | 9.7% | 2019-03-01 |
| N H S Shared Business Services | Other | 1 | £3m | 8.0% | 2024-01-26 |
| HealthTrust Europe LLP (HTE) acting as agent for the University Hospitals of Coventry and Warwickshire NHS Trust (“UHCW”) | Other | 1 | £2m | 3.9% | 2019-12-20 |
| NHS Property Services Limited | Other | 10 | £800k | 2.1% | 2025-12-18 |
| The Hillingdon Hospitals NHS Foundation Trust | Other | 3 | £647k | 1.7% | 2021-12-30 |
| Community Health Partnerships Limited | Other | 19 | £573k | 1.5% | 2024-10-14 |
| SOMERSET NHS FOUNDATION TRUSTNew | Other | 3 | £258k | 0.7% | 2026-02-24 |
| MID CHESHIRE HOSPITALS NHS FOUNDATION TRUSTNew | Other | 1 | £126k | 0.3% | 2024-09-24 |
| The Princess Alexandra Hospital NHS Trust | Other | 2 | £108k | 0.3% | 2023-07-10 |
| NHS SOUTH, CENTRAL AND WEST COMMISSIONING SUPPORT UNIT | Other | 1 | £105k | 0.3% | 2024-01-01 |
| NHS Blood and Transplant (NHSBT)New | Other | 2 | £98k | 0.3% | 2025-06-03 |
| The Rotherham NHSFTNew | Other | 1 | £62k | 0.2% | 2025-12-19 |
| Sheffield Teaching Hospitals NHS Foundation Trust | Other | 1 | £58k | 0.2% | 2023-11-20 |
| Suffolk Sourcing | Other | 1 | £57k | 0.1% | 2019-10-03 |
| General Pharmaceutical Council | Other | 1 | £50k | 0.1% | 2022-11-01 |
| Gloucestershire Hospitals Subsidiary Company Ltd.New | Other | 1 | £48k | 0.1% | 2026-05-01 |
| Kent Community Health NHS Foundation Trust | Other | 1 | £40k | 0.1% | 2022-05-30 |
| TRINITY HOUSE | Other | 1 | £36k | 0.1% | 2020-10-20 |
| North West Anglia NHS Foundation TrustNew | Other | 1 | £35k | 0.1% | 2026-05-01 |
| Barnsley Hospital NHS Foundation TrustNew | Other | 1 | £34k | 0.1% | 2025-12-18 |
| Surrey and Borders Partnership NHS Foundation TrustNew | Other | 1 | £29k | 0.1% | 2025-06-02 |
| Post OfficeNew | Other | 1 | £25k | 0.1% | 2025-02-09 |
| Dorset County Hospital NHS Foundation Trust | Other | 1 | £19k | 0.0% | 2021-09-22 |
| CAMBRIDGE UNIVERSITY HOSPITALS NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| The Common Services Agency (more commonly known as NHS National Services Scotland) (NSS) | Other | 2 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| Mid and South Essex NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Surrey and Borders Partnership NHS Foundation Trust on behalf of NHS Commercial Solutions | Other | 1 | £0k | 0.0% | |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 1 | £0k | 0.0% | |
| BUCKINGHAMSHIRE HEALTHCARE NHS TRUST | Other | 1 | £0k | 0.0% | |
| Quality Trusted Solutions LLP | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| NHS Wales Shared Service Partnership | Other | 2 | £0k | 0.0% | |