| NHS Supply Chain | Other | 7 | £51m | 40.6% | 2022-10-27 |
| HealthTrust Europe LLP (HTE) acting on behalf ofNew | Other | 1 | £13m | 10.6% | 2024-06-25 |
| NHS Shared Business Services Ltd (NHS SBS) | Other | 1 | £12m | 9.2% | 2021-08-31 |
| SUPPLY CHAIN COORDINATION LIMITEDNew | Other | 2 | £6m | 5.0% | 2025-09-03 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 24 | £3m | 2.5% | 2023-06-30 |
| UNIVERSITY OF SHEFFIELD | Other | 9 | £3m | 2.5% | 2023-11-17 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 19 | £3m | 2.4% | 2024-12-04 |
| Public Health England | Other | 7 | £3m | 2.2% | 2021-02-25 |
| UK Research and Innovation | Other | 15 | £3m | 2.0% | 2026-03-31 |
| Newcastle University | Other | 7 | £2m | 1.8% | 2022-07-06 |
| The University of Nottingham | Other | 7 | £2m | 1.5% | 2023-04-03 |
| ROYAL HOLLOWAY, UNIVERSITY OF LONDON | Other | 1 | £2m | 1.3% | 2018-03-23 |
| University of Bristol | Other | 3 | £2m | 1.3% | 2021-07-01 |
| UNIVERSITY OF SOUTHAMPTON | Other | 4 | £2m | 1.3% | 2024-12-12 |
| Durham University | Other | 4 | £1m | 1.2% | 2024-01-16 |
| Partners Procurement Service (PPS) | Other | 9 | £1m | 1.1% | 2026-05-12 |
| UK Research & Innovation - Medical Research Council | Other | 2 | £1m | 1.0% | 2022-01-28 |
| UK RESEARCH & INNOVATION | Other | 4 | £1m | 0.8% | 2024-02-16 |
| University of Leeds | Other | 5 | £910k | 0.7% | 2018-12-03 |
| University of Bath | Other | 2 | £894k | 0.7% | 2022-09-28 |
| Hull University Teaching Hospitals NHS Trust | Other | 8 | £793k | 0.6% | 2026-02-12 |
| University of Plymouth | Other | 3 | £790k | 0.6% | 2023-06-12 |
| Royal Holloway and Bedford New College, known as Royal Holloway, University of London | Other | 1 | £748k | 0.6% | 2023-04-03 |
| MEDICINES DISCOVERY CATAPULT | Other | 1 | £726k | 0.6% | 2019-02-19 |
| University of Huddersfield e-Tendering | Other | 2 | £703k | 0.6% | 2017-09-22 |
| Partners Procurement Service | Other | 8 | £686k | 0.5% | 2026-03-25 |
| ATAMIS LTDNew | Other | 1 | £684k | 0.5% | 2025-08-06 |
| UK Centre for Ecology & Hydrology | Other | 1 | £645k | 0.5% | 2022-10-04 |
| UNIVERSITY OF EXETER | Other | 1 | £615k | 0.5% | 2020-09-15 |
| The Queen Elizabeth Hospital King's Lynn NHS Foundation Trust | Other | 8 | £486k | 0.4% | 2023-05-01 |
| Natural History MuseumNew | Other | 1 | £408k | 0.3% | 2025-08-22 |
| UK Research & Innovation | Other | 1 | £391k | 0.3% | 2020-11-06 |
| James Paget University Hospital | Other | 1 | £387k | 0.3% | 2021-08-05 |
| Ministry of Defence | Other | 5 | £382k | 0.3% | 2023-07-14 |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 3 | £300k | 0.2% | 2019-07-12 |
| UNIVERSITY COLLEGE LONDON | Other | 1 | £230k | 0.2% | 2016-06-09 |
| Leeds Teaching Hospitals NHS Trust | Other | 3 | £229k | 0.2% | 2026-03-30 |
| University Hospitals Sussex NHS Foundation TrustNew | Other | 2 | £210k | 0.2% | 2025-12-15 |
| UNIVERSITY OF NOTTINGHAM (THE) | Other | 5 | £209k | 0.2% | 2022-04-06 |
| West Suffolk NHS Foundation Trust | Other | 2 | £208k | 0.2% | 2025-10-16 |
| BIRMINGHAM CHILDRENS HOSPITAL | Other | 1 | £204k | 0.2% | 2017-06-26 |
| Evolve Facility Services Limited | Other | 1 | £204k | 0.2% | 2024-01-26 |
| Ministry of Defence, C&C, HMNB Portsmouth | Other | 1 | £184k | 0.1% | 2017-07-18 |
| Board of Trustees of the Royal Botanic Gardens Kew | Other | 4 | £181k | 0.1% | 2022-04-18 |
| East Kent Hospitals University NHS Foundation Trust | Other | 2 | £174k | 0.1% | 2018-01-11 |
| Defence Science and Technology Laboratory | Other | 1 | £172k | 0.1% | 2023-10-05 |
| Bath and Northeast Somerset, Swindon and Wiltshire STP | Other | 1 | £157k | 0.1% | 2022-08-02 |
| COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £151k | 0.1% | 2022-02-02 |
| Norfolk & Norwich University HospitalNew | Other | 1 | £145k | 0.1% | 2026-01-26 |
| Sheffield Hallam University | Other | 1 | £130k | 0.1% | 2018-05-24 |
| Northumbria Healthcare NHS Foundation TrustNew | Other | 1 | £127k | 0.1% | 2026-02-02 |
| Coventry University | Other | 1 | £116k | 0.1% | 2020-07-31 |
| Guy's and St Thomas' NHS Foundation Trust | Other | 1 | £110k | 0.1% | 2023-08-01 |
| UCLPartners Procurement Services | Other | 2 | £104k | 0.1% | 2015-11-27 |
| CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE | Other | 1 | £98k | 0.1% | 2017-03-01 |
| University of Leicester | Other | 1 | £91k | 0.1% | 2020-03-04 |
| Manchester University NHS Foundation Trust | Other | 1 | £80k | 0.1% | 2023-03-19 |
| UK Health Security Agency | Other | 1 | £76k | 0.1% | 2024-01-08 |
| The University Of KentNew | Other | 2 | £75k | 0.1% | 2025-08-29 |
| United Lincolnshire Teaching Hospitals NHS Trust | Other | 1 | £74k | 0.1% | 2024-04-22 |
| Norfolk and Norwich University Hospitals NHS Foundation Trust | Other | 2 | £73k | 0.1% | 2023-11-30 |
| DEFRA | Other | 3 | £71k | 0.1% | 2023-09-12 |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 4 | £61k | 0.0% | |
| Royal Botanic Gardens | Other | 1 | £60k | 0.0% | 2017-08-10 |
| NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUST | Other | 1 | £60k | 0.0% | 2022-09-08 |
| N H S Shared Business Services | Other | 1 | £50k | 0.0% | 2024-02-20 |
| BIP SOLUTIONS LIMITED | Other | 1 | £47k | 0.0% | 2023-01-27 |
| King's College Trust | Other | 1 | £47k | 0.0% | 2022-08-23 |
| ASTON UNIVERSITY | Other | 1 | £44k | 0.0% | 2021-02-10 |
| MEDICINES DISCOVERY CATAPULT LIMITED | Other | 1 | £38k | 0.0% | 2023-08-31 |
| University of York | Other | 1 | £35k | 0.0% | 2020-10-15 |
| UKHSANew | Other | 1 | £28k | 0.0% | 2024-11-15 |
| Derbyshire Support & Facilities Services Ltd | Other | 2 | £27k | 0.0% | 2022-03-02 |
| SOMERSET NHS FOUNDATION TRUSTNew | Other | 1 | £20k | 0.0% | 2025-04-08 |
| Ministry of Defence, C&C, C&C | Other | 1 | £16k | 0.0% | 2019-01-31 |
| University College London Hospitals NHS Foundation Trust | Other | 2 | £0k | 0.0% | 2018-06-25 |
| University Hospitals of Derby and Burton NHS Foundation Trust | Other | 4 | £0k | 0.0% | 2024-01-03 |
| University of Warwick | Other | 2 | £0k | 0.0% | 2025-01-31 |
| Manchester Metropolitan UniversityNew | Other | 3 | £0k | 0.0% | 2024-06-10 |
| NHS Supply Chain Tower 4 | Other | 1 | £0k | 0.0% | 2021-05-05 |
| HE Portal | Other | 2 | £0k | 0.0% | 2020-03-09 |
| Hertfordshire NHS Procurement | Other | 1 | £0k | 0.0% | 2019-04-25 |
| MEDICINES DISCOVERY CATAPULT SERVICES LIMITED | Other | 2 | £0k | 0.0% | 2019-02-07 |
| University of Hertfordshire | Other | 1 | £0k | 0.0% | 2017-07-27 |
| Sheffield Teaching Hospitals NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| NHS Supply Chain Operated by DHL Supply Chain Limited acting as agent of Supply Chain Coordination Ltd (SCCL) | Other | 1 | £0k | 0.0% | |
| CAMBRIDGE UNIVERSITY HOSPITALS NHS FOUNDATION TRUST | Other | 4 | £0k | 0.0% | |
| University Of Edinburgh | Other | 2 | £0k | 0.0% | |
| University of Glasgow | Other | 5 | £0k | 0.0% | |
| Mid and South Essex NHS Foundation Trust | Other | 5 | £0k | 0.0% | |
| North Western Universities Purchasing Consortium | Other | 6 | £0k | 0.0% | |
| NHS Wales Shared Service Partnership (hosted by Velindre NHS Trust) | Other | 4 | £0k | 0.0% | |
| Royal Berkshire NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| The Common Services Agency (more commonly known as NHS National Services Scotland) (NSS) | Other | 8 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| MOORFIELDS EYE HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| YORK AND SCARBOROUGH TEACHING HOSPITALS NHS FOUNDATION TRUST | Other | 2 | £0k | 0.0% | |
| University Hospitals of Leicester NHS Trust | Other | 1 | £0k | 0.0% | |
| UNIVERSITY OF EAST ANGLIA | Other | 1 | £0k | 0.0% | |