| YPO | Other | 2 | £6m | 28.4% | 2019-09-20 |
| Manchester University NHS Foundation Trust | Other | 5 | £5m | 21.4% | 2025-05-23 |
| Gloucestershire County CouncilNew | Other | 4 | £2m | 7.3% | 2026-01-15 |
| The Princess Alexandra Hospital NHS Trust | Other | 10 | £2m | 7.0% | 2026-03-31 |
| OFCOMNew | Other | 4 | £1m | 5.6% | 2026-01-26 |
| Barnsley Metropolitan Borough Council | Other | 7 | £1m | 4.9% | 2026-03-09 |
| NHS Commissioning Board | Other | 1 | £923k | 4.1% | 2022-01-27 |
| Surrey and Borders Partnership NHS Foundation Trust | Other | 7 | £921k | 4.1% | 2026-04-17 |
| Companies HouseNew | Other | 3 | £886k | 3.9% | 2025-06-13 |
| Ministry of Defence | Other | 2 | £786k | 3.5% | 2023-02-28 |
| NCGNew | Other | 1 | £294k | 1.3% | 2024-08-21 |
| United Lincolnshire Hospitals NHS Trust | Other | 3 | £255k | 1.1% | 2026-03-26 |
| NHS Arden and GEM CSU | Other | 6 | £247k | 1.1% | 2023-01-03 |
| Royal Borough of Kingston Upon Thames | Other | 1 | £149k | 0.7% | 2020-12-23 |
| NHS Arden and Greater East Midlands Commissioning Support Unit | Other | 3 | £143k | 0.6% | 2023-09-21 |
| Department for Work & Pensions | Other | 2 | £125k | 0.6% | 2022-12-01 |
| Intellectual Property Office | Other | 2 | £110k | 0.5% | 2023-02-20 |
| Queen Victoria Hospital NHS Foundation TrustNew | Other | 2 | £99k | 0.4% | 2026-03-27 |
| MSE Group | Other | 1 | £81k | 0.4% | 2021-03-23 |
| United Lincolnshire Teaching Hospitals NHS TrustNew | Other | 2 | £78k | 0.3% | 2026-01-13 |
| UK Export Finance | Other | 1 | £72k | 0.3% | 2023-08-01 |
| Construction Industry Training BoardNew | Other | 1 | £68k | 0.3% | 2025-04-08 |
| ROCHDALE BOROUGHWIDE HOUSING LIMITEDNew | Other | 1 | £66k | 0.3% | 2024-08-22 |
| East Sussex Healthcare NHS Trust | Other | 1 | £61k | 0.3% | 2024-02-15 |
| Department for International Trade | Other | 1 | £53k | 0.2% | 2023-07-14 |
| BIP SOLUTIONS LIMITEDNew | Other | 1 | £49k | 0.2% | 2025-11-24 |
| London Borough of Enfield | Other | 11 | £49k | 0.2% | 2020-05-05 |
| Department for Education | Other | 2 | £46k | 0.2% | 2021-09-28 |
| United Lincolnshire NHS Trust | Other | 1 | £45k | 0.2% | 2024-03-26 |
| Wyre Forest District CouncilNew | Other | 1 | £40k | 0.2% | 2024-12-17 |
| Stevenage Borough Council | Other | 1 | £32k | 0.1% | 2023-06-01 |
| UK Health Security Agency | Other | 1 | £21k | 0.1% | 2022-02-18 |
| Lincolnshire Partnership NHS Foundation Trust | Other | 1 | £18k | 0.1% | 2024-01-12 |
| NHS Derby & Derbyshire Integrated Care Board | Other | 1 | £17k | 0.1% | 2023-11-23 |
| Office of Rail and Road | Other | 1 | £17k | 0.1% | 2022-03-03 |
| MHRA | Other | 1 | £14k | 0.1% | 2020-08-01 |
| Medicines & Healthcare Products Regulatory Agency | Other | 1 | £12k | 0.1% | 2021-09-08 |
| London Borough of Croydon | Other | 1 | £1k | 0.0% | 2022-12-20 |
| Shropshire Healthcare Procurement Service | Other | 1 | £0k | 0.0% | 2021-06-08 |
| Salford City Council | Other | 3 | £0k | 0.0% | |
| North of England Commercial Procurement Collaborative (NOE CPC) (hosted by and acting through Leeds and York Partnership NHS Foundation Trust.) | Other | 1 | £0k | 0.0% | |
| COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST | Other | 2 | £0k | 0.0% | |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 1 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 2 | £0k | 0.0% | |
| KETTERING GENERAL HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |