| Global Commercial Services Group LtdNew | Other | 2 | £225m | 53.0% | 2026-03-23 |
| Foreign Commonwealth and Development OfficeNew | Other | 3 | £48m | 11.3% | 2025-06-05 |
| Ministry of Justice | Other | 3 | £31m | 7.2% | 2021-01-11 |
| National Highways Limited | Other | 10 | £27m | 6.3% | 2023-12-10 |
| The Crown EstateNew | Other | 1 | £20m | 4.7% | 2026-01-30 |
| Espo | Other | 7 | £12m | 2.7% | 2022-07-06 |
| National Highways | Other | 4 | £11m | 2.7% | 2024-02-02 |
| Ministry of Defence | Other | 28 | £11m | 2.6% | 2025-12-05 |
| Department for Science, Innovation & TechnologyNew | Other | 2 | £8m | 2.0% | 2025-04-07 |
| Home Office | Other | 10 | £5m | 1.3% | 2021-09-06 |
| Homes England | Other | 2 | £3m | 0.8% | 2022-06-30 |
| DEFRA | Other | 42 | £2m | 0.5% | 2024-11-22 |
| Department for Education | Other | 5 | £2m | 0.4% | 2023-03-06 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 19 | £2m | 0.4% | 2023-01-16 |
| Medicines and Healthcare Products Regulatory AgencyNew | Other | 3 | £2m | 0.4% | 2026-03-24 |
| MCA - Maritime and Coastguard Agency | Other | 3 | £2m | 0.4% | 2025-05-23 |
| Police, Fire & Crime Commissioner for Staffordshire | Other | 4 | £2m | 0.4% | 2026-04-07 |
| Department of Health and Social Care (DHSC) | Other | 16 | £1m | 0.4% | 2023-03-15 |
| Department for Work & Pensions | Other | 1 | £1m | 0.3% | 2022-05-27 |
| UK Health Security Agency | Other | 8 | £929k | 0.2% | 2026-04-14 |
| FCDO Services | Other | 14 | £915k | 0.2% | 2025-07-01 |
| Transport for LondonNew | Other | 4 | £761k | 0.2% | 2026-01-04 |
| Ministry of Housing, Communities & Local GovernmentNew | Other | 2 | £680k | 0.2% | 2025-04-03 |
| Department for Business, Energy & Industrial Strategy | Other | 5 | £622k | 0.1% | 2023-03-14 |
| Department for Energy Security & Net Zero | Other | 5 | £566k | 0.1% | 2026-04-13 |
| Department of Health & Social Care | Other | 6 | £558k | 0.1% | 2024-12-30 |
| Department for Culture, Media and Sport | Other | 3 | £548k | 0.1% | 2021-01-20 |
| Department of Health and Social Care (T&T) | Other | 5 | £490k | 0.1% | 2021-08-09 |
| Department for Environment Food & Rural Affairs | Other | 9 | £402k | 0.1% | 2025-03-13 |
| Yorkshire & Humber Police Procurement | Other | 1 | £381k | 0.1% | 2024-01-05 |
| Sport EnglandNew | Other | 3 | £374k | 0.1% | 2026-02-12 |
| Business Energy and Industrial Strategy | Other | 4 | £365k | 0.1% | 2023-09-01 |
| Staffordshire PoliceNew | Other | 3 | £257k | 0.1% | 2024-06-12 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 2 | £222k | 0.1% | 2024-09-20 |
| Competition and Markets Authority | Other | 1 | £200k | 0.0% | 2023-11-24 |
| GREAT BRITISH NUCLEAR LIMITED | Other | 1 | £195k | 0.0% | 2023-12-04 |
| Disclosure and Barring Service | Other | 1 | £186k | 0.0% | 2022-04-01 |
| NHS Property Services Limited | Other | 3 | £184k | 0.0% | 2025-08-05 |
| Defence Information Infrastructure | Other | 2 | £179k | 0.0% | 2021-06-18 |
| Crown Commercial Service | Other | 3 | £167k | 0.0% | 2023-03-03 |
| GOVERNMENT PROPERTY AGENCYNew | Other | 2 | £149k | 0.0% | 2026-03-25 |
| NHSX | Other | 1 | £122k | 0.0% | 2021-05-10 |
| Care Quality Commission | Other | 2 | £114k | 0.0% | 2019-05-30 |
| UKHSANew | Other | 1 | £111k | 0.0% | 2025-10-24 |
| ATAMIS LTD | Other | 1 | £99k | 0.0% | 2021-11-18 |
| City of London Corporation | Other | 1 | £82k | 0.0% | 2023-09-30 |
| Kent Fire & Rescue Service | Other | 1 | £70k | 0.0% | 2022-03-07 |
| Department of Health and Social Care (T&T) | Other | 2 | £69k | 0.0% | 2021-08-12 |
| NHS England | Other | 1 | £68k | 0.0% | 2021-11-23 |
| East Sussex County Council | Other | 1 | £68k | 0.0% | 2020-03-25 |
| NHS ResolutionNew | Other | 1 | £58k | 0.0% | 2024-09-06 |
| Hampshire County Council | Other | 1 | £49k | 0.0% | 2021-05-19 |
| GENOMICS ENGLAND LIMITED | Other | 1 | £47k | 0.0% | 2021-04-30 |
| London Borough of MertonNew | Other | 1 | £44k | 0.0% | 2025-09-10 |
| The Office for Standards in Education, Children's Services and SkillsNew | Other | 1 | £32k | 0.0% | 2024-11-18 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 1 | £28k | 0.0% | 2018-08-31 |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 1 | £0k | 0.0% | |