| Met Office | Other | 46 | £50m | 24.3% | 2026-04-03 |
| Crown Commercial Service | Other | 3 | £33m | 16.2% | 2025-05-27 |
| Home Office | Other | 5 | £23m | 11.1% | 2026-01-27 |
| OFFICE FOR STANDARDS IN EDUCATION, CHILDRENS SERVICES AND SKILLSNew | Other | 1 | £12m | 5.7% | 2026-02-27 |
| Ministry of Justice | Other | 4 | £10m | 5.1% | 2025-12-24 |
| National Highways | Other | 4 | £9m | 4.2% | 2025-10-01 |
| Environment Agency | Other | 1 | £8m | 4.0% | 2023-11-16 |
| POLICE DIGITAL SERVICENew | Other | 1 | £7m | 3.5% | 2025-12-01 |
| Ministry of Defence | Other | 12 | £6m | 3.1% | 2026-02-20 |
| Care Quality Commission | Other | 12 | £6m | 2.8% | 2023-06-30 |
| Ofsted | Other | 2 | £6m | 2.8% | 2022-05-27 |
| THE POLICE ICT COMPANY | Other | 1 | £3m | 1.3% | 2020-09-14 |
| Ministry of Housing, Communities & Local GovernmentNew | Other | 2 | £2m | 1.2% | 2026-05-08 |
| Lancashire County Council | Other | 3 | £2m | 1.2% | 2025-09-09 |
| NHS England | Other | 3 | £2m | 1.1% | 2025-10-24 |
| NETWORK RAIL INFRASTRUCTURE LIMITEDNew | Other | 2 | £2m | 0.9% | 2026-04-02 |
| NHS South West - Acutes | Other | 1 | £2m | 0.8% | 2017-06-01 |
| City of London Corporation | Other | 3 | £2m | 0.8% | 2024-03-05 |
| Highways Agency | Other | 2 | £1m | 0.6% | 2018-07-31 |
| Sport England | Other | 1 | £1m | 0.6% | 2024-04-24 |
| Birmingham City CouncilNew | Other | 1 | £1m | 0.6% | 2024-08-29 |
| National Highways Limited | Other | 4 | £1m | 0.5% | 2022-06-17 |
| Department for Transport | Other | 2 | £952k | 0.5% | 2020-09-15 |
| Caerphilly County Borough CouncilNew | Other | 2 | £834k | 0.4% | 2025-12-05 |
| Brighton and Hove City Council | Other | 4 | £660k | 0.3% | 2022-03-30 |
| NS&I | Other | 5 | £597k | 0.3% | 2026-03-03 |
| Cambridgeshire County Council | Other | 2 | £588k | 0.3% | 2022-05-10 |
| London Borough of Newham | Other | 1 | £500k | 0.2% | 2022-02-17 |
| Barnsley Metropolitan Borough Council | Other | 3 | £490k | 0.2% | 2023-05-16 |
| British Business Bank | Other | 6 | £445k | 0.2% | 2023-07-31 |
| Suffolk County CouncilNew | Other | 1 | £439k | 0.2% | 2025-09-29 |
| National Savings & Investments | Other | 2 | £403k | 0.2% | 2020-09-17 |
| North Yorkshire County Council | Other | 2 | £401k | 0.2% | 2025-12-29 |
| Office for Students | Other | 1 | £383k | 0.2% | 2024-05-20 |
| Nhs Blood And TransplantNew | Other | 1 | £342k | 0.2% | 2026-05-07 |
| DERBY CITY COUNCIL | Other | 4 | £330k | 0.2% | 2024-12-13 |
| Buckinghamshire Council | Other | 3 | £310k | 0.2% | 2023-10-31 |
| The Arts Council of EnglandNew | Other | 1 | £301k | 0.1% | 2024-11-07 |
| United Lincolnshire Hospitals NHS Trust | Other | 3 | £294k | 0.1% | 2024-04-17 |
| Liverpool City CouncilNew | Other | 2 | £271k | 0.1% | 2026-03-20 |
| Peterborough City Council | Other | 2 | £262k | 0.1% | 2023-10-31 |
| North Northamptonshire Council | Other | 1 | £258k | 0.1% | 2023-03-27 |
| National Employment Savings Trust (NEST) Corporation | Other | 2 | £257k | 0.1% | |
| Bristol City Council | Other | 2 | £225k | 0.1% | 2018-04-16 |
| Thirteen Housing Group Limited | Other | 2 | £221k | 0.1% | 2023-09-01 |
| UNIVERSITY OF WOLVERHAMPTON ENTERPRISE LIMITED | Other | 4 | £219k | 0.1% | 2026-04-16 |
| Durham County Council | Other | 1 | £204k | 0.1% | 2021-01-19 |
| Post Office LimitedNew | Other | 2 | £200k | 0.1% | 2024-08-21 |
| HS2 | Other | 1 | £189k | 0.1% | 2021-05-18 |
| Southend-on-sea Borough CouncilNew | Other | 1 | £181k | 0.1% | 2024-08-01 |
| Kent County Council | Other | 2 | £165k | 0.1% | 2024-07-31 |
| Ofgem | Other | 4 | £163k | 0.1% | 2025-09-24 |
| Salford City Council | Other | 2 | £156k | 0.1% | 2026-03-05 |
| Wolverhampton City Council | Other | 1 | £143k | 0.1% | 2024-03-15 |
| Luton Council | Other | 3 | £142k | 0.1% | 2026-02-02 |
| Coventry City Council | Other | 3 | £138k | 0.1% | 2023-04-25 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 2 | £131k | 0.1% | 2023-10-30 |
| University of Bath | Other | 1 | £127k | 0.1% | 2018-03-29 |
| COVENTRY AND WARWICKSHIRE PARTNERSHIP NHS TRUST | Other | 1 | £125k | 0.1% | 2017-03-03 |
| London Borough of Redbridge | Other | 1 | £120k | 0.1% | 2023-01-11 |
| Cambridgeshire County Council and Peterborough City Council | Other | 1 | £120k | 0.1% | 2021-11-26 |
| Wirral Borough CouncilNew | Other | 1 | £119k | 0.1% | 2025-03-31 |
| Bradford Teaching Hospitals NHS Foundation TrustNew | Other | 1 | £118k | 0.1% | 2025-05-28 |
| Nottingham City Council | Other | 1 | £117k | 0.1% | 2022-09-12 |
| London Borough of Tower Hamlets | Other | 1 | £115k | 0.1% | 2020-11-09 |
| Bedford Borough Council | Other | 1 | £112k | 0.1% | 2023-05-23 |
| London Fire Commissioner | Other | 1 | £111k | 0.1% | 2020-10-01 |
| Hartlepool Borough Council | Other | 1 | £100k | 0.0% | 2023-10-20 |
| DEFRANew | Other | 1 | £99k | 0.0% | 2024-09-25 |
| Hull City Council | Other | 1 | £98k | 0.0% | 2021-01-29 |
| Leeds City Council | Other | 2 | £97k | 0.0% | 2022-04-05 |
| Cambridgeshire and Peterborough Combined Authority | Other | 2 | £97k | 0.0% | 2023-03-30 |
| London Borough Of Islington | Other | 1 | £94k | 0.0% | 2022-09-15 |
| Blackburn With Darwen Borough Council | Other | 1 | £92k | 0.0% | 2023-07-15 |
| Cumberland CouncilNew | Other | 1 | £91k | 0.0% | 2026-03-30 |
| NHS Commissioning Board | Other | 1 | £84k | 0.0% | 2021-06-24 |
| Newcastle City CouncilNew | Other | 1 | £83k | 0.0% | 2024-07-30 |
| TAMESIDE METROPOLITAN BOROUGH COUNCIL | Other | 2 | £80k | 0.0% | 2023-12-20 |
| East Sussex County Council | Other | 1 | £75k | 0.0% | 2022-02-01 |
| ROYAL HOLLOWAY, UNIVERSITY OF LONDON | Other | 1 | £73k | 0.0% | 2020-11-26 |
| Hereford & Worcester Fire and Rescue Service | Other | 1 | £71k | 0.0% | 2023-08-31 |
| Milton Keynes CouncilNew | Other | 1 | £68k | 0.0% | 2024-08-26 |
| West Midlands Fire Service | Other | 1 | £66k | 0.0% | 2023-07-07 |
| Sunderland City Council | Other | 2 | £65k | 0.0% | 2025-02-14 |
| Solihull Metropolitan Borough Council | Other | 2 | £64k | 0.0% | 2021-08-26 |
| Information Commissioner's OfficeNew | Other | 1 | £64k | 0.0% | 2025-03-31 |
| Darlington Borough Council | Other | 2 | £61k | 0.0% | 2019-06-27 |
| West Berkshire Council | Other | 1 | £59k | 0.0% | 2018-04-30 |
| Kirklees CouncilNew | Other | 1 | £58k | 0.0% | 2026-03-30 |
| Cambridge and Community ServicesNew | Other | 1 | £57k | 0.0% | 2024-12-05 |
| HM Revenue & Customs | Other | 1 | £56k | 0.0% | 2019-07-03 |
| City of Bradford Metropolitan District CouncilNew | Other | 1 | £55k | 0.0% | 2024-11-01 |
| Rotherham Metropolitan Borough CouncilNew | Other | 1 | £53k | 0.0% | 2024-12-20 |
| NS&I | Other | 2 | £52k | 0.0% | 2021-06-01 |
| Bath and North East Somerset Council | Other | 1 | £50k | 0.0% | 2018-03-01 |
| Line Manager | Other | 1 | £50k | 0.0% | 2024-03-28 |
| High Speed Two (HS2) Limited | Other | 1 | £50k | 0.0% | 2018-02-15 |
| Lancashire Constabulary | Other | 1 | £49k | 0.0% | 2022-03-11 |
| Lincolnshire County Council | Other | 1 | £47k | 0.0% | 2023-08-31 |
| East Hampshire District Council | Other | 1 | £40k | 0.0% | 2022-06-16 |
| Derbyshire County Council | Other | 1 | £39k | 0.0% | 2021-05-10 |
| WAKEFIELD COUNCIL | Other | 1 | £38k | 0.0% | 2018-12-31 |
| West Midlands Combined Authority | Other | 1 | £35k | 0.0% | 2023-03-10 |
| London Borough of Croydon | Other | 1 | £35k | 0.0% | 2023-09-29 |
| Defence Business Service | Other | 1 | £33k | 0.0% | 2018-10-30 |
| The Crown EstateNew | Other | 1 | £31k | 0.0% | 2024-09-08 |
| NOTTINGHAMSHIRE POLICENew | Other | 1 | £30k | 0.0% | 2024-08-05 |
| Police and Crime Commissioner for LincolnshireNew | Other | 2 | £30k | 0.0% | 2025-07-14 |
| UNIVERSITY OF NOTTINGHAM (THE) | Other | 1 | £29k | 0.0% | 2022-03-18 |
| Telford & Wrekin Council | Other | 1 | £28k | 0.0% | 2018-03-12 |
| West Yorkshire Combined Authority | Other | 1 | £24k | 0.0% | 2021-05-24 |
| DUDLEY MBC | Other | 1 | £21k | 0.0% | 2023-03-01 |
| Parliamentary and Health Service OmbudsmanNew | Other | 1 | £19k | 0.0% | 2024-12-19 |
| UK Health Security Agency | Other | 1 | £18k | 0.0% | 2021-10-27 |
| Train Information Services LimitedNew | Other | 3 | £0k | 0.0% | 2026-04-13 |
| North of England Commercial Procurement Collaborative (NOE CPC) | Other | 1 | £0k | 0.0% | 2018-06-26 |
| East Midlands Ambulance Service NHS Trust | Other | 1 | £0k | 0.0% | 2018-03-15 |
| Norfolk County Council | Other | 1 | £0k | 0.0% | 2017-04-03 |
| The Police and Crime Commissioner for Northumbria | Other | 1 | £0k | 0.0% | |
| Metropolitan Police Service | Other | 1 | £0k | 0.0% | |
| London Borough of Haringey | Other | 2 | £0k | 0.0% | |
| Leeds and York Partnership NHS Foundation Trust, trading as North of England NHS Commercial Procurement Collaborative ("NOE CPC") | Other | 1 | £0k | 0.0% | |
| HUMBER TEACHING NHS FOUNDATION TRUST | Other | 3 | £0k | 0.0% | |
| Government Commercial Agency | Other | 38 | £0k | 0.0% | |
| Health and Social Care Board | Other | 2 | £0k | 0.0% | |
| National Records of Scotland | Other | 1 | £0k | 0.0% | |
| ENVIRONMENT AGENCY (Defra Network eTendering Portal) | Other | 1 | £0k | 0.0% | |
| Office for National Statistics | Other | 1 | £0k | 0.0% | |
| University of York | Other | 1 | £0k | 0.0% | |
| Mayor's Office for Policing And Crime | Other | 1 | £0k | 0.0% | |
| Greater Manchester Combined Authority - GMP | Other | 1 | £0k | 0.0% | |
| Anchor Hanover Group | Other | 1 | £0k | 0.0% | |