| Government Commercial AgencyNew | Other | 2 | £10.0bn | 91.3% | 2026-01-12 |
| YPO | Other | 11 | £366m | 3.3% | 2024-02-13 |
| Espo | Other | 3 | £157m | 1.4% | 2019-03-19 |
| London Borough of Waltham ForestNew | Other | 2 | £100m | 0.9% | 2026-02-24 |
| Wolverhampton City Council | Other | 2 | £100m | 0.9% | 2025-07-25 |
| Richmond and Wandsworth Councils | Other | 1 | £98m | 0.9% | 2020-07-02 |
| UNIVERSITY OF SUSSEX(THE)New | Other | 2 | £30m | 0.3% | 2025-05-06 |
| N H S Shared Business Services | Other | 2 | £15m | 0.1% | 2024-04-26 |
| FIRST GREATER WESTERN LIMITEDNew | Other | 2 | £13m | 0.1% | 2026-03-27 |
| Yorkshire and Humber Police Procurement (Y&HPP) | Other | 4 | £12m | 0.1% | 2023-07-05 |
| Harris FederationNew | Other | 3 | £11m | 0.1% | 2025-11-14 |
| CIRRUS PURCHASING LTDNew | Other | 1 | £10m | 0.1% | 2025-08-27 |
| SERIOUS FRAUD OFFICE | Other | 2 | £7m | 0.1% | 2025-11-28 |
| GOVERNMENT PROPERTY AGENCYNew | Other | 3 | £6m | 0.1% | 2025-11-28 |
| Financial Ombudsman Service Limited | Other | 1 | £6m | 0.1% | 2021-09-19 |
| BRUNEL UNIVERSITY LONDON | Other | 1 | £4m | 0.0% | 2022-09-02 |
| Staffordshire PoliceNew | Other | 1 | £2m | 0.0% | 2025-06-13 |
| Nottinghamshire County CouncilNew | Other | 2 | £2m | 0.0% | 2024-07-29 |
| University Of The West Of England | Other | 38 | £2m | 0.0% | 2025-09-09 |
| Competition and Markets Authority | Other | 3 | £1m | 0.0% | 2025-05-19 |
| University of Lincoln | Other | 3 | £1m | 0.0% | 2024-11-15 |
| UNIVERSITY OF WOLVERHAMPTON ENTERPRISE LIMITED | Other | 2 | £1m | 0.0% | 2025-12-11 |
| The Office for Standards in Education, Children's Services and Skills | Other | 16 | £979k | 0.0% | 2026-03-20 |
| UNIVERSITY OF SHEFFIELD | Other | 1 | £800k | 0.0% | 2021-06-25 |
| NHS Blood and Transplant (NHSBT)New | Other | 1 | £763k | 0.0% | 2025-12-03 |
| Police and Crime Commissioner for Lincolnshire | Other | 1 | £700k | 0.0% | 2022-07-01 |
| NATIONAL WEALTH FUND LIMITEDNew | Other | 2 | £650k | 0.0% | 2025-04-13 |
| Stevenage Borough Council - Department Of Community Services | Other | 1 | £538k | 0.0% | 2016-02-25 |
| Crown Commercial Service | Other | 2 | £490k | 0.0% | 2021-08-05 |
| Historic EnglandNew | Other | 2 | £447k | 0.0% | 2024-11-22 |
| Chelmsford City Council | Other | 2 | £400k | 0.0% | 2023-09-01 |
| Security Industry Authority | Other | 3 | £397k | 0.0% | 2024-08-01 |
| FCDO Services | Other | 2 | £377k | 0.0% | 2024-05-23 |
| MCA - Maritime and Coastguard Agency | Other | 3 | £373k | 0.0% | 2025-05-14 |
| University of Sunderland | Other | 1 | £300k | 0.0% | 2020-03-02 |
| First Ark Group | Other | 1 | £300k | 0.0% | 2018-07-02 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 3 | £253k | 0.0% | 2023-08-15 |
| Civil Nuclear Police Authority (CNPA) / Civil Nuclear Constabulary (CNC) | Other | 1 | £250k | 0.0% | 2023-05-05 |
| Berneslai Homes LimitedNew | Other | 2 | £229k | 0.0% | 2024-11-14 |
| UNIVERSITY OF NOTTINGHAM (THE) | Other | 4 | £173k | 0.0% | 2020-02-05 |
| O F W A TNew | Other | 2 | £141k | 0.0% | 2025-10-29 |
| Ofsted | Other | 5 | £128k | 0.0% | 2023-09-04 |
| NHS Arden and Greater East Midlands Commissioning Support UnitNew | Other | 2 | £116k | 0.0% | 2024-09-29 |
| UK Export Finance | Other | 1 | £105k | 0.0% | 2024-04-17 |
| Lincolnshire Housing PartnershipNew | Other | 1 | £85k | 0.0% | 2025-08-22 |
| Department of Health and Social Care (T&T) | Other | 1 | £84k | 0.0% | 2021-06-22 |
| Sport England | Other | 1 | £83k | 0.0% | 2021-11-03 |
| Norfolk and Norwich Hospitals NHS Foundation Trust | Other | 1 | £72k | 0.0% | 2022-04-06 |
| Office of Rail and Road | Other | 2 | £62k | 0.0% | 2024-02-23 |
| City of London Corporation | Other | 1 | £60k | 0.0% | 2023-12-18 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 2 | £57k | 0.0% | 2022-09-26 |
| UK Health Security Agency | Other | 1 | £52k | 0.0% | 2022-03-29 |
| Sheffield Teaching Hospitals NHS Foundation Trust | Other | 1 | £50k | 0.0% | 2023-07-25 |
| Walsall Healthcare NHS Trust | Other | 2 | £39k | 0.0% | 2023-11-02 |
| ST HELENS & KNOWSLEY TEACHING HOSPITALS NHS TRUST | Other | 1 | £36k | 0.0% | 2023-03-01 |
| NHS Arden and GEM CSU | Other | 1 | £27k | 0.0% | 2022-11-28 |
| NOTTINGHAMSHIRE POLICE | Other | 1 | £0k | 0.0% | 2022-09-21 |
| ORBIT GROUP LIMITEDNew | Other | 2 | £0k | 0.0% | 2025-10-29 |
| The Riverside Group LimitedNew | Other | 1 | £0k | 0.0% | 2025-01-01 |
| East Sussex County Council | Other | 1 | £0k | 0.0% | 2022-11-10 |
| Bernicia Group | Other | 1 | £0k | 0.0% | 2020-04-08 |
| SE Shared Services | Other | 1 | £0k | 0.0% | 2017-03-20 |
| UNIVERSITY OF DERBY | Other | 1 | £0k | 0.0% | |
| Thirteen Housing Group Limited | Other | 1 | £0k | 0.0% | |
| Mid and South Essex NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of | Other | 1 | £0k | 0.0% | |
| YOO Recruit Limited | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 4 | £0k | 0.0% | |
| Natural History Museum | Other | 1 | £0k | 0.0% | |
| ACCENT HOUSING LIMITED | Other | 1 | £0k | 0.0% | |
| FIRST MTR SOUTH WESTERN TRAINS LIMITED | Other | 1 | £0k | 0.0% | |
| Southern Water Services Ltd. | Other | 1 | £0k | 0.0% | |
| NHS Property Services | Other | 1 | £0k | 0.0% | |
| Southern Universities Purchasing Consortium (SUPC) | Other | 4 | £0k | 0.0% | |
| Gentoo Group Limited | Other | 2 | £0k | 0.0% | |
| BLUELIGHT COMMERCIAL LIMITED | Other | 1 | £0k | 0.0% | |
| SALIX FINANCE LTD | Other | 1 | £0k | 0.0% | |
| Cirrus Consortium c/o Halton Housing | Other | 1 | £0k | 0.0% | |
| Abri | Other | 2 | £0k | 0.0% | |