| NHS SHARED BUSINESS SERVICES LIMITEDNew | Other | 8 | £300m | 84.1% | 2025-09-23 |
| HealthTrust Europe LLP (HTE) acting as agent for the University Hospitals of Coventry and Warwickshire NHS Trust (“UHCW”) | Other | 1 | £13m | 3.5% | 2019-10-15 |
| East Of England NHS Collaborative Hub | Other | 2 | £6m | 1.8% | 2017-11-01 |
| NHS Shared Business Services Ltd (NHS SBS) | Other | 1 | £6m | 1.7% | 2021-03-01 |
| UCLPartners Procurement Services | Other | 2 | £6m | 1.6% | 2016-09-21 |
| Royal Cornwall Hospitals TrustNew | Other | 3 | £4m | 1.2% | 2025-11-11 |
| Partners Procurement Service | Other | 5 | £4m | 1.1% | 2025-03-20 |
| DSFS c/o Chesterfield Royal Hospital | Other | 4 | £2m | 0.7% | 2022-11-01 |
| Hull University Teaching Hospitals NHS Trust | Other | 8 | £2m | 0.7% | 2026-02-24 |
| Walsall Healthcare NHS TrustNew | Other | 1 | £2m | 0.4% | 2025-02-04 |
| United Lincolnshire Hospitals NHS Trust | Other | 2 | £2m | 0.4% | 2024-06-26 |
| NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUST | Other | 4 | £1m | 0.4% | 2025-05-22 |
| Shropshire Healthcare Procurement Service | Other | 1 | £850k | 0.2% | 2023-11-17 |
| Nottingham university hospital | Other | 1 | £755k | 0.2% | 2022-07-05 |
| United Lincs Hospital TrustNew | Other | 2 | £633k | 0.2% | 2024-11-22 |
| University Hospitals of North Midlands NHS Trust | Other | 1 | £626k | 0.2% | 2018-10-30 |
| LEIDOS SUPPLY, LIMITEDNew | Other | 2 | £600k | 0.2% | 2025-12-04 |
| King’s College Hospital NHS Foundation Trust | Other | 1 | £561k | 0.2% | 2018-08-14 |
| Dorset County Hospital NHS Foundation Trust | Other | 6 | £554k | 0.2% | 2024-04-08 |
| Lewisham and Greenwich NHS TrustNew | Other | 1 | £486k | 0.1% | 2024-12-02 |
| TORBAY AND SOUTH DEVON NHS FOUNDATION TRUST | Other | 1 | £369k | 0.1% | 2019-12-10 |
| Guy's and St Thomas' NHS Foundation TrustNew | Other | 3 | £364k | 0.1% | 2026-02-20 |
| University Hospitals Sussex NHS Foundation TrustNew | Other | 4 | £361k | 0.1% | 2025-12-09 |
| The Royal Marsden NHS Foundation TrustNew | Other | 2 | £240k | 0.1% | 2026-02-11 |
| UNIVERSITY OF SOUTHAMPTON | Other | 1 | £214k | 0.1% | 2019-10-15 |
| Dorset County Hospital NHS TrustNew | Other | 1 | £198k | 0.1% | 2025-09-05 |
| Hull & East Yorkshire Hospitals Nhs Trust | Other | 1 | £193k | 0.1% | 2018-12-31 |
| University of York | Other | 2 | £159k | 0.0% | 2018-03-13 |
| NHS South West - Acutes | Other | 1 | £137k | 0.0% | 2018-10-23 |
| Public Health England | Other | 2 | £131k | 0.0% | 2017-08-01 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 3 | £126k | 0.0% | 2020-03-13 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 3 | £121k | 0.0% | 2020-12-18 |
| Bradford Teaching Hospitals NHS Foundation TrustNew | Other | 2 | £102k | 0.0% | 2026-03-26 |
| Barnsley Facilities LtdNew | Other | 1 | £98k | 0.0% | 2025-12-16 |
| Teesside University | Other | 1 | £98k | 0.0% | 2018-04-24 |
| Calderdale and Huddersfield NHS Foundation Trust | Other | 1 | £77k | 0.0% | 2022-05-02 |
| Hertfordshire NHS Procurement | Other | 1 | £76k | 0.0% | 2016-02-25 |
| Leeds Teaching Hospitals NHS TrustNew | Other | 3 | £72k | 0.0% | 2026-01-21 |
| KFM | Other | 1 | £68k | 0.0% | 2023-01-27 |
| South of England Procurement CentreNew | Other | 1 | £62k | 0.0% | 2025-03-03 |
| Norfolk and Norwich Hospitals NHS Foundation Trust | Other | 2 | £56k | 0.0% | 2021-10-21 |
| Derbyshire Support and Facilities Services Ltd | Other | 1 | £54k | 0.0% | 2022-02-02 |
| Derbyshire Support and Facilities Services Lts | Other | 1 | £49k | 0.0% | 2022-03-11 |
| N E L Commissioning Support Unit | Other | 1 | £45k | 0.0% | 2016-07-05 |
| The Queen Elizabeth Hospital King's Lynn NHS Foundation Trust | Other | 1 | £42k | 0.0% | 2018-12-18 |
| DEFRA | Other | 1 | £35k | 0.0% | 2019-10-09 |
| Derbyshire Support and Facilities Services | Other | 1 | £34k | 0.0% | 2022-02-16 |
| Royal Papworth HospitalNew | Other | 1 | £33k | 0.0% | 2025-06-03 |
| The Christie NHS Foundation TrustNew | Other | 1 | £30k | 0.0% | 2025-03-31 |
| United Lincolnshire Teaching Hospitals NHS TrustNew | Other | 2 | £30k | 0.0% | 2025-11-24 |
| CALDERDALE AND HUDDERSFIELD SOLUTIONS LTD | Other | 1 | £29k | 0.0% | 2024-02-19 |
| DERBY TEACHING HOSPITALS NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | 2019-12-11 |
| University of Leeds | Other | 1 | £0k | 0.0% | 2016-10-21 |
| NOE CPC | Other | 1 | £0k | 0.0% | 2016-06-01 |
| NHS Greater Glasgow and Clyde | Other | 5 | £0k | 0.0% | |
| HealthTrust Europe LLP | Other | 3 | £0k | 0.0% | |
| The Common Services Agency (more commonly known as NHS National Services Scotland) (NSS) | Other | 16 | £0k | 0.0% | |
| University Hospitals of Derby and Burton NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| York Teaching Hospital Facilities Management LLP | Other | 1 | £0k | 0.0% | |
| Velindre NHS Trust, NHS Shared Services Partnership - Procurement Services (on behalf of All Wales Health Boards and Trusts) | Other | 1 | £0k | 0.0% | |
| OPEN UNIVERSITY(THE) | Other | 1 | £0k | 0.0% | |
| Sheffield Hallam University | Other | 1 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 3 | £0k | 0.0% | |
| West Hertfordshire Teaching Hospitals NHS Trust | Other | 1 | £0k | 0.0% | |
| THE ROYAL ORTHOPAEDIC HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| CAMBRIDGE UNIVERSITY HOSPITALS NHS FOUNDATION TRUST | Other | 4 | £0k | 0.0% | |
| Western Health and Social Care Trust | Other | 8 | £0k | 0.0% | |
| NHS National Services Scotland | Other | 2 | £0k | 0.0% | |
| The Clatterbridge Cancer Centre NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| University Hospitals Birmingham NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| NHS Ayrshire & Arran | Other | 1 | £0k | 0.0% | |
| University Of Edinburgh | Other | 1 | £0k | 0.0% | |
| COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| The Mersey Docks and Harbour Company | Other | 1 | £0k | 0.0% | |
| East Suffolk and North Essex NHS Foundation Trust | Other | 2 | £0k | 0.0% | |