| Sussex Partnership NHS Foundation TrustNew | Other | 5 | £4m | 14.6% | 2026-04-02 |
| Department of Health and Social Care (DHSC) | Other | 16 | £3m | 11.8% | 2022-07-22 |
| Norfolk and Norwich University Hospitals NHS Foundation Trust | Other | 6 | £3m | 11.2% | 2026-02-09 |
| UK Health Security Agency | Other | 13 | £3m | 10.7% | 2022-03-29 |
| NHS England | Other | 2 | £3m | 9.8% | 2025-12-18 |
| The Christie NHS Foundation Trust | Other | 7 | £2m | 8.4% | 2023-03-07 |
| Ministry of DefenceNew | Other | 3 | £2m | 6.9% | 2025-03-28 |
| Surrey and Borders Partnership NHS Foundation Trust | Other | 8 | £1m | 4.9% | 2025-10-28 |
| Department of Health and Social Care (T&T) | Other | 12 | £781k | 2.9% | 2021-09-22 |
| Department of Health and Social Care (T&T) | Other | 4 | £736k | 2.7% | 2021-09-12 |
| The Defence Medical Services | Other | 1 | £657k | 2.4% | 2023-07-18 |
| Medway N H S Foundation Trust | Other | 7 | £466k | 1.7% | 2022-08-17 |
| The Queen Elizabeth Hospital King's Lynn NHS Foundation Trust | Other | 3 | £410k | 1.5% | 2024-12-05 |
| NHS SOUTH, CENTRAL AND WEST COMMISSIONING SUPPORT UNIT | Other | 3 | £373k | 1.4% | 2023-01-31 |
| East and North Herfordshire NHS Trust | Other | 1 | £300k | 1.1% | 2022-01-07 |
| London Ambulance Service NHS Trust | Other | 4 | £267k | 1.0% | 2023-11-13 |
| BRISTOL & WESTON NHS PURCHASING CONSORTIUMNew | Other | 3 | £245k | 0.9% | 2024-12-18 |
| Competition and Markets Authority | Other | 1 | £200k | 0.7% | 2023-11-30 |
| NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUST | Other | 2 | £186k | 0.7% | 2024-03-28 |
| West Hertfordshire Teaching Hospitals NHS TrustNew | Other | 1 | £184k | 0.7% | 2026-05-07 |
| Lincolnshire Community Health Service NHS TrustNew | Other | 1 | £129k | 0.5% | 2025-09-04 |
| UK Health Security Agency, an agency of the Dept. of Health and Social Care | Other | 1 | £122k | 0.5% | 2022-02-25 |
| ATAMIS LTD | Other | 1 | £93k | 0.3% | 2023-09-21 |
| East and North Hertfordshire NHS Trust | Other | 1 | £90k | 0.3% | 2021-11-29 |
| United Lincolnshire Teaching Hospitals NHS TrustNew | Other | 2 | £87k | 0.3% | 2025-07-11 |
| Nursing And Midwifery Council | Other | 1 | £79k | 0.3% | 2023-10-19 |
| Hull University Teaching Hospitals NHS Trust | Other | 1 | £72k | 0.3% | 2023-12-14 |
| NHS Arden and Greater East Midlands Commissioning Support UnitNew | Other | 1 | £68k | 0.2% | 2024-08-08 |
| Frimley Health NHS Foundation Trust | Other | 1 | £67k | 0.2% | 2022-11-01 |
| Department of Health & Social Care | Other | 1 | £63k | 0.2% | 2021-10-04 |
| North Tees and Hartlepool NHS Foundation Trust | Other | 1 | £59k | 0.2% | 2022-10-28 |
| SOMERSET NHS FOUNDATION TRUSTNew | Other | 2 | £39k | 0.1% | 2025-03-26 |
| Hertfordshire NHS Procurement | Other | 2 | £35k | 0.1% | 2020-02-17 |
| Dorset County Hospital NHS Foundation TrustNew | Other | 1 | £30k | 0.1% | 2025-07-04 |
| Guy's and St Thomas' NHS Foundation Trust | Other | 1 | £25k | 0.1% | 2023-07-21 |
| NHS Arden and GEM CSU | Other | 1 | £13k | 0.0% | 2021-12-21 |
| Walsall Healthcare NHS Trust | Other | 1 | £12k | 0.0% | 2023-11-14 |
| Crown Commercial Service | Other | 1 | £0k | 0.0% | 2015-06-23 |
| University Hospitals of Derby and Burton NHS Foundation Trust | Other | 4 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of | Other | 3 | £0k | 0.0% | |
| CAMBRIDGE UNIVERSITY HOSPITALS NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |