| Ministry of Defence | Other | 6 | £142m | 34.7% | 2025-04-09 |
| Ministry of Justice | Other | 2 | £95m | 23.1% | |
| Llywodraeth Cymru / Welsh GovernmentNew | Other | 1 | £60m | 14.7% | 2026-03-27 |
| Department for Education | Other | 1 | £26m | 6.4% | 2024-01-29 |
| YPONew | Other | 8 | £19m | 4.6% | 2025-03-05 |
| Crown Commercial Service | Other | 8 | £11m | 2.8% | 2025-04-03 |
| National Highways | Other | 2 | £8m | 2.0% | 2022-09-13 |
| East Sussex Healthcare NHS TrustNew | Other | 1 | £8m | 1.9% | 2024-07-03 |
| NHS England | Other | 5 | £8m | 1.9% | 2025-07-04 |
| London Ambulance Service NHS Trust | Other | 49 | £5m | 1.2% | 2025-11-02 |
| Northern Trains LimitedNew | Other | 2 | £5m | 1.2% | 2025-05-09 |
| MCA - Maritime and Coastguard Agency | Other | 13 | £3m | 0.6% | 2025-12-30 |
| Foreign Commonwealth and Development Office | Other | 2 | £1m | 0.3% | 2023-05-09 |
| NHS Hampshire and Isle of Wight Integrated Care BoardNew | Other | 1 | £1m | 0.3% | 2025-05-08 |
| NHS Arden and Greater East Midlands Commissioning Support Unit | Other | 5 | £1m | 0.3% | 2024-10-29 |
| Ambulance Radio Programme (ARP) | Other | 1 | £1m | 0.3% | 2023-05-11 |
| Cambridgeshire Community Services NHS Trust | Other | 2 | £950k | 0.2% | |
| NHS Digital | Other | 3 | £939k | 0.2% | 2022-11-21 |
| Cyngor Sir Ceredigion County CouncilNew | Other | 2 | £840k | 0.2% | 2025-12-16 |
| Royal Borough of Greenwich | Other | 1 | £800k | 0.2% | |
| NHS Nottingham & Nottinghamshire Integrated Care BoardNew | Other | 1 | £682k | 0.2% | 2025-03-19 |
| NHS Norfolk and Waveney Integrated Care BoardNew | Other | 1 | £661k | 0.2% | 2025-04-21 |
| NHS Hertfordshire and West Essex Integrated Care BoardNew | Other | 1 | £640k | 0.2% | 2025-04-02 |
| The Police and Crime Commissioner for HertfordshireNew | Other | 2 | £481k | 0.1% | 2026-03-18 |
| NHS Blood & Transplant | Other | 1 | £451k | 0.1% | 2023-09-05 |
| Department of Health and Social Care (DHSC) | Other | 2 | £447k | 0.1% | 2022-06-20 |
| Hertfordshire Community NHS Trust | Other | 3 | £447k | 0.1% | 2025-04-01 |
| United Lincolnshire Teaching Hospitals NHS TrustNew | Other | 1 | £424k | 0.1% | 2026-04-20 |
| Flintshire County CouncilNew | Other | 2 | £421k | 0.1% | 2026-01-08 |
| UK Health Security Agency | Other | 3 | £403k | 0.1% | 2024-05-28 |
| NHS Black Country Integrated Care Board | Other | 2 | £370k | 0.1% | 2026-03-25 |
| DfI Transport and Road Asset Management (TRAM) | Other | 1 | £350k | 0.1% | |
| NHS CAMBRIDGESHIRE AND PETERBOROUGH INTEGRATED CARE BOARD | Other | 1 | £318k | 0.1% | 2023-03-27 |
| British Transport Police | Other | 3 | £293k | 0.1% | 2026-05-19 |
| Walsall Healthcare NHS TrustNew | Other | 2 | £287k | 0.1% | 2025-01-23 |
| Attain | Other | 1 | £271k | 0.1% | 2023-02-28 |
| Rotherham Metropolitan Borough Council | Other | 1 | £263k | 0.1% | 2019-03-19 |
| NHS LINCOLNSHIRE INTEGRATED CARE BOARDNew | Other | 1 | £239k | 0.1% | 2025-03-26 |
| HM Revenue & Customs | Other | 1 | £239k | 0.1% | |
| Leeds and York Partnership NHS Foundation Trust | Other | 1 | £216k | 0.1% | 2023-09-27 |
| University Hospitals Birmingham NHS Foundation Trust | Other | 3 | £213k | 0.1% | 2025-09-08 |
| London Ambulance Service | Other | 1 | £212k | 0.1% | 2023-03-03 |
| Hertfordshire Partnership Foundation NHS TrustNew | Other | 1 | £200k | 0.0% | 2025-01-28 |
| NHS Northamptonshire Integrated Care BoardNew | Other | 1 | £199k | 0.0% | 2025-03-05 |
| Norfolk and Norwich University Hospitals NHS Foundation Trust | Other | 3 | £178k | 0.0% | 2025-04-28 |
| London Ambulance Service NHS TTrust | Other | 1 | £176k | 0.0% | 2022-03-03 |
| NHS Birmingham and Solihull Integrated Care Board | Other | 2 | £163k | 0.0% | 2025-05-15 |
| Southern HousingNew | Other | 1 | £154k | 0.0% | 2024-11-29 |
| London Borough of Harrow | Other | 1 | £153k | 0.0% | |
| Dorset County Hospital NHS Foundation Trust | Other | 1 | £146k | 0.0% | 2024-01-08 |
| Companies HouseNew | Other | 1 | £141k | 0.0% | 2025-04-07 |
| Food Standards AgencyNew | Other | 1 | £140k | 0.0% | 2025-09-02 |
| Humberside Fire & Rescue ServiceNew | Other | 1 | £128k | 0.0% | 2025-02-24 |
| UKHSANew | Other | 1 | £114k | 0.0% | 2024-09-16 |
| QVH - COMMERCE & FINANCENew | Other | 1 | £112k | 0.0% | 2025-03-29 |
| FCDO ServicesNew | Other | 2 | £110k | 0.0% | 2026-03-20 |
| Wealden District CouncilNew | Other | 1 | £101k | 0.0% | 2025-07-01 |
| Reigate & Banstead Borough Council | Other | 1 | £93k | 0.0% | 2024-04-08 |
| Health Education England | Other | 1 | £92k | 0.0% | 2019-01-24 |
| East and North Hertfordshire NHS Trust | Other | 2 | £90k | 0.0% | 2025-08-28 |
| Blood Services South West | Other | 1 | £90k | 0.0% | 2018-12-20 |
| The Newcastle Upon Tyne Hospitals NHS Foundation TrustNew | Other | 1 | £90k | 0.0% | 2025-02-17 |
| West Hertfordshire Teaching Hospitals NHS Trust | Other | 3 | £80k | 0.0% | 2024-05-30 |
| NHS Resolution | Other | 2 | £74k | 0.0% | 2025-03-18 |
| Government Digital Service | Other | 1 | £66k | 0.0% | 2018-09-28 |
| NHS Blood and Transplant (Bristol) | Other | 1 | £56k | 0.0% | 2024-03-19 |
| THE UNITED KINGDOM SPORTS COUNCILNew | Other | 1 | £54k | 0.0% | 2025-05-31 |
| Northumbria Healthcare NHS Foundation TrustNew | Other | 1 | £54k | 0.0% | 2024-07-10 |
| The Robert Jones Agnus Hunt Orthopaedic Hospital NHS Foundation TrustS | Other | 1 | £38k | 0.0% | 2024-05-02 |
| Shropshire Community Health NHS Trust | Other | 1 | £35k | 0.0% | 2024-05-02 |
| The Princess Alexandra Hospital NHS TrustNew | Other | 2 | £33k | 0.0% | 2025-09-01 |
| Derbyshire Dales District CouncilNew | Other | 1 | £27k | 0.0% | 2025-07-31 |
| Scottish Hydro Electric Power Distribution PlcNew | Other | 1 | £0k | 0.0% | 2025-12-19 |
| Metropolitan Police ServiceNew | Other | 2 | £0k | 0.0% | 2025-08-06 |
| South Yorkshire Mayoral Combined Authority | Other | 2 | £0k | 0.0% | |
| Surrey County Council | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 4 | £0k | 0.0% | |
| GENOMICS ENGLAND LIMITED | Other | 3 | £0k | 0.0% | |
| The Council of the Borough of Kirklees | Other | 1 | £0k | 0.0% | |
| Lincolnshire Housing Partnership | Other | 1 | £0k | 0.0% | |
| The Police and Crime Commissioner for Surrey | Other | 1 | £0k | 0.0% | |
| THE UNIVERSITY OF CUMBRIA | Other | 1 | £0k | 0.0% | |
| South Staffordshire College | Other | 1 | £0k | 0.0% | |
| NHS DEVON INTEGRATED CARE BOARD | Other | 1 | £0k | 0.0% | |
| Royal Holloway and Bedford New College | Other | 1 | £0k | 0.0% | |
| City of Doncaster Council | Other | 1 | £0k | 0.0% | |
| Cornwall Council | Other | 1 | £0k | 0.0% | |
| City & County of Swansea | Other | 2 | £0k | 0.0% | |
| London Borough of Bromley | Other | 1 | £0k | 0.0% | |
| UNIVERSITY OF GLOUCESTERSHIRE | Other | 1 | £0k | 0.0% | |
| Network Rail Infrastructure Ltd | Other | 1 | £0k | 0.0% | |
| Warwickshire County Council | Other | 1 | £0k | 0.0% | |
| National Highways Limited | Other | 1 | £0k | 0.0% | |
| North West Ambulance Service N H S Trust | Other | 1 | £0k | 0.0% | |
| The Secretary of State for the Home Department | Other | 1 | £0k | 0.0% | |
| Police and Crime Commissioner for West Midlands | Other | 1 | £0k | 0.0% | |
| TEES ESK & WEAR VALLEYS NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| Hereford and Worcester Fire Authority | Other | 1 | £0k | 0.0% | |
| Dudley Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |
| Stockton on Tees Borough Council | Other | 1 | £0k | 0.0% | |
| The Christie NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| The Police and Crime Commissioner for Warwickshire | Other | 1 | £0k | 0.0% | |
| DERBY CITY COUNCIL | Other | 2 | £0k | 0.0% | |
| GREATER MANCHESTER EDUCATION TRUST | Other | 2 | £0k | 0.0% | |
| Amplius Living | Other | 1 | £0k | 0.0% | |
| Sellafield Limited | Other | 4 | £0k | 0.0% | |
| Sefton Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |
| Colchester City Council | Other | 1 | £0k | 0.0% | |
| The Police and Crime Commissioner for Humberside | Other | 1 | £0k | 0.0% | |
| Royal Berkshire Fire Authority | Other | 1 | £0k | 0.0% | |
| Police and Crime Commissioner for Lincolnshire | Other | 1 | £0k | 0.0% | |
| Cheltenham Borough Council | Other | 1 | £0k | 0.0% | |
| Cheshire West and Chester Council | Other | 1 | £0k | 0.0% | |
| West Northamptonshire Council | Other | 1 | £0k | 0.0% | |
| Lichfield District Council | Other | 1 | £0k | 0.0% | |