| Government Commercial AgencyNew | Other | 2 | £10.0bn | 89.0% | 2026-01-12 |
| HEART ACADEMIES TRUSTNew | Other | 4 | £723m | 6.4% | 2026-01-15 |
| Espo | Other | 7 | £167m | 1.5% | 2022-07-06 |
| Harris FederationNew | Other | 8 | £132m | 1.2% | 2025-11-14 |
| Commercial Services Kent LimitedNew | Other | 1 | £90m | 0.8% | 2026-03-30 |
| The Police and Crime Commissioner for Kent | Other | 3 | £41m | 0.4% | 2019-11-12 |
| Herefordshire CouncilNew | Other | 2 | £40m | 0.4% | 2026-03-27 |
| CIRRUS PURCHASING LTDNew | Other | 1 | £10m | 0.1% | 2025-08-27 |
| British Business Bank | Other | 3 | £8m | 0.1% | 2025-07-01 |
| Office for National StatisticsNew | Other | 2 | £8m | 0.1% | 2024-10-02 |
| Belfast Metropolitan College | Other | 1 | £4m | 0.0% | 2020-11-24 |
| East Riding of Yorkshire CouncilNew | Other | 2 | £3m | 0.0% | 2025-10-06 |
| Procurement for Housing | Other | 1 | £2m | 0.0% | 2019-09-05 |
| Department for Education | Other | 3 | £1m | 0.0% | 2020-05-20 |
| Wrexham County Borough CouncilNew | Other | 1 | £1m | 0.0% | 2026-03-11 |
| Gentoo Group Limited | Other | 6 | £937k | 0.0% | 2019-02-18 |
| The Insolvency Service | Other | 1 | £907k | 0.0% | 2023-09-29 |
| FCDO Services | Other | 7 | £647k | 0.0% | 2024-04-21 |
| NATIONAL WEALTH FUND LIMITEDNew | Other | 1 | £600k | 0.0% | 2025-03-29 |
| Contract for the Provision of Support Worker Services | Other | 1 | £480k | 0.0% | 2020-08-20 |
| University of Bristol | Other | 1 | £450k | 0.0% | 2016-09-15 |
| Public Health England | Other | 2 | £310k | 0.0% | 2021-04-02 |
| Wandle Housing Association | Other | 1 | £303k | 0.0% | 2018-02-28 |
| Department of Health and Social Care (DHSC) | Other | 3 | £269k | 0.0% | 2021-04-05 |
| Civil Aviation Authority | Other | 1 | £250k | 0.0% | 2018-05-15 |
| Solihull Metropolitan Borough Council | Other | 3 | £232k | 0.0% | |
| University of HertfordshireNew | Other | 1 | £210k | 0.0% | 2024-08-06 |
| Hertfordshire County Council - Children's Services | Other | 1 | £188k | 0.0% | 2022-09-14 |
| THE FINANCIAL REPORTING COUNCIL LIMITED | Other | 1 | £182k | 0.0% | 2020-08-31 |
| Professional Services, Commercial | Other | 1 | £132k | 0.0% | 2022-08-11 |
| University of Bath | Other | 1 | £107k | 0.0% | 2019-08-21 |
| Department for Science, Innovation & TechnologyNew | Other | 1 | £92k | 0.0% | 2026-02-28 |
| UK Health Security Agency | Other | 3 | £88k | 0.0% | 2022-03-29 |
| NHS Property Services LimitedNew | Other | 1 | £80k | 0.0% | 2026-02-28 |
| Newcastle University | Other | 3 | £79k | 0.0% | 2021-11-15 |
| Department of Health and Social Care (T&T) | Other | 2 | £76k | 0.0% | 2021-09-06 |
| UNIVERSITY OF EAST ANGLIA | Other | 1 | £50k | 0.0% | 2023-09-05 |
| LONDON SOUTH BANK UNIVERSITY | Other | 1 | £30k | 0.0% | 2018-10-31 |
| University of Bedfordshire | Other | 1 | £17k | 0.0% | 2019-07-31 |
| UK Export FinanceNew | Other | 1 | £11k | 0.0% | 2024-12-19 |
| Housing 21 | Other | 1 | £1k | 0.0% | 2020-07-06 |
| Wigan CouncilNew | Other | 4 | £0k | 0.0% | 2025-09-09 |
| Walsall Council e-Tendering | Other | 1 | £0k | 0.0% | 2024-04-03 |
| Cornwall Council | Other | 1 | £0k | 0.0% | |
| Western Health and Social Care Trust | Other | 1 | £0k | 0.0% | |
| Redcar and Cleveland Borough Council | Other | 1 | £0k | 0.0% | |
| Central Bedfordshire Council | Other | 1 | £0k | 0.0% | |
| London Councils | Other | 1 | £0k | 0.0% | |
| Welsh Government - Commercial Delivery | Other | 2 | £0k | 0.0% | |
| NHS Property Services | Other | 1 | £0k | 0.0% | |
| NEPO | Other | 1 | £0k | 0.0% | |
| City & County of Swansea | Other | 3 | £0k | 0.0% | |
| University of Hertfordshire Higher Education Corporation | Other | 1 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of | Other | 2 | £0k | 0.0% | |
| Bridgend County Borough Council | Other | 1 | £0k | 0.0% | |
| Walsall Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |
| OPEN UNIVERSITY(THE) | Other | 1 | £0k | 0.0% | |
| Southern Universities Purchasing Consortium (SUPC) | Other | 7 | £0k | 0.0% | |
| Cirrus Consortium c/o Halton Housing | Other | 2 | £0k | 0.0% | |
| Leicestershire County Council | Other | 2 | £0k | 0.0% | |
| BELIEVE HOUSING LIMITED | Other | 3 | £0k | 0.0% | |
| Gentoo Group | Other | 1 | £0k | 0.0% | |
| NI Patient Client Council PCC | Other | 2 | £0k | 0.0% | |
| Leeds City Council - PACS | Other | 1 | £0k | 0.0% | |
| Abri | Other | 1 | £0k | 0.0% | |