| Global Commercial Services Group LtdNew | Other | 2 | £300m | 32.0% | 2026-03-23 |
| NHS SHARED BUSINESS SERVICES LIMITEDNew | Other | 3 | £250m | 26.7% | 2025-11-11 |
| NHS London Procurement Partnership (Hosted by Guy's and St Thomas' NHS FT) | Other | 2 | £111m | 11.9% | 2021-11-01 |
| Northern Procurement Group Limited | Other | 1 | £59m | 6.3% | 2016-12-13 |
| NHS Shared Business Services Ltd (NHS SBS) | Other | 1 | £53m | 5.6% | 2021-03-01 |
| The Christie NHS Foundation Trust | Other | 1 | £31m | 3.4% | 2023-03-08 |
| the Education AuthorityNew | Other | 2 | £20m | 2.1% | 2026-02-03 |
| Crown Commercial Service | Other | 4 | £12m | 1.3% | 2021-05-04 |
| Driver and Vehicle Licensing Agency | Other | 8 | £9m | 1.0% | 2025-06-05 |
| Midlands Partnership Foundation Trust | Other | 1 | £8m | 0.9% | 2019-12-13 |
| Espo | Other | 5 | £7m | 0.7% | 2023-01-12 |
| Westminster City CouncilNew | Other | 1 | £7m | 0.7% | 2025-12-19 |
| YPO | Other | 1 | £6m | 0.7% | 2019-09-20 |
| NEUPC Ltd | Other | 3 | £6m | 0.7% | 2021-03-01 |
| Liverpool City Council | Other | 1 | £4m | 0.4% | 2020-01-10 |
| Gloucestershire County Council | Other | 1 | £4m | 0.4% | 2024-05-13 |
| capitalEsourcing | Other | 1 | £3m | 0.3% | 2022-06-01 |
| Manchester City Council | Other | 1 | £3m | 0.3% | 2017-06-12 |
| Ministry of Defence | Other | 4 | £2m | 0.2% | 2024-07-12 |
| CRESCENT PURCHASING LIMITED | Other | 2 | £2m | 0.2% | 2025-04-22 |
| University of Chester | Other | 3 | £2m | 0.2% | 2025-06-18 |
| Derbyshire Support and Facilities Services Ltd | Other | 1 | £1m | 0.1% | 2021-04-01 |
| UNIVERSITY OF WOLVERHAMPTON ENTERPRISE LIMITED | Other | 1 | £1m | 0.1% | 2016-05-10 |
| St Albans City & District | Other | 2 | £1m | 0.1% | 2025-07-31 |
| University of Hertfordshire | Other | 1 | £1m | 0.1% | 2017-06-15 |
| London Borough of Camden | Other | 1 | £1m | 0.1% | 2021-10-26 |
| southend on sea | Other | 1 | £1m | 0.1% | 2011-11-04 |
| NHS Business Services AuthorityNew | Other | 1 | £975k | 0.1% | 2025-07-11 |
| Hertfordshire Partnership University NHS TrustNew | Other | 1 | £920k | 0.1% | 2024-08-01 |
| United Lincolnshire Teaching Hospitals NHS TrustNew | Other | 1 | £904k | 0.1% | 2025-04-28 |
| Astrea Academy Trust | Other | 1 | £830k | 0.1% | 2022-06-29 |
| Warwickshire Police & West Mercia Police Procurement & Contracts Department | Other | 1 | £800k | 0.1% | 2018-06-15 |
| Health and Social Care Information Centre | Other | 1 | £800k | 0.1% | 2015-11-02 |
| Post Office Limited | Other | 2 | £779k | 0.1% | 2024-08-01 |
| City of Doncaster Council | Other | 1 | £723k | 0.1% | 2022-08-09 |
| BRUNEL UNIVERSITY LONDONNew | Other | 2 | £723k | 0.1% | 2024-08-31 |
| Ministry of Justice | Other | 1 | £700k | 0.1% | 2020-08-06 |
| Kingston Upon Hull City Council | Other | 1 | £680k | 0.1% | 2020-11-04 |
| NHS Property Services Limited | Other | 4 | £673k | 0.1% | 2026-04-01 |
| West Sussex County Council | Other | 3 | £658k | 0.1% | 2024-04-22 |
| KETTERING GENERAL HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £603k | 0.1% | 2024-01-12 |
| Buckinghamshire Council | Other | 1 | £600k | 0.1% | 2016-10-12 |
| Empower Learning Academy TrustNew | Other | 1 | £556k | 0.1% | 2024-06-05 |
| St Helens CollegeNew | Other | 1 | £511k | 0.1% | 2024-07-29 |
| Intellectual Property Office | Other | 3 | £492k | 0.1% | 2026-03-31 |
| Police, Fire & Crime Commissioner for EssexNew | Other | 1 | £479k | 0.1% | 2025-12-11 |
| UNIVERSITY OF GLOUCESTERSHIRE | Other | 1 | £472k | 0.1% | 2016-05-27 |
| Prospere Learning Trust | Other | 1 | £467k | 0.0% | 2022-01-07 |
| Manchester University NHS Foundation Trust | Other | 1 | £442k | 0.0% | 2022-03-31 |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 2 | £422k | 0.0% | |
| Salford City CouncilNew | Other | 1 | £406k | 0.0% | 2025-03-24 |
| The Insolvency Service | Other | 1 | £401k | 0.0% | 2019-11-27 |
| The Howard Academy Trust | Other | 1 | £380k | 0.0% | 2023-09-04 |
| Tyne Coast College | Other | 2 | £379k | 0.0% | 2024-07-26 |
| East and North Hertfordshire Teaching Hospital NHS TrustNew | Other | 1 | £377k | 0.0% | 2024-10-18 |
| The Sir John Brunner Foundation | Other | 1 | £354k | 0.0% | 2022-03-24 |
| Tameside CollegeNew | Other | 1 | £333k | 0.0% | 2024-07-23 |
| Middlesbrough CollegeNew | Other | 1 | £332k | 0.0% | 2025-04-25 |
| University Hospitals Birmingham NHS Foundation TrustNew | Other | 1 | £326k | 0.0% | 2024-06-02 |
| Hampshire County Council | Other | 2 | £322k | 0.0% | 2025-12-08 |
| Southend-on-sea Borough CouncilNew | Other | 1 | £320k | 0.0% | 2024-08-02 |
| BOURNEMOUTH UNIVERSITYNew | Other | 2 | £318k | 0.0% | 2025-07-10 |
| YORK AND SCARBOROUGH TEACHING HOSPITALS NHS FOUNDATION TRUST | Other | 2 | £315k | 0.0% | 2022-05-09 |
| Northampton General Hospital NHS Trust | Other | 1 | £307k | 0.0% | 2024-03-01 |
| Torbay Council | Other | 2 | £306k | 0.0% | 2022-10-26 |
| Calderdale College | Other | 1 | £304k | 0.0% | 2022-11-28 |
| Warwickshire Police | Other | 2 | £303k | 0.0% | 2025-06-06 |
| United Kingdom Atomic Energy Authority | Other | 2 | £300k | 0.0% | 2025-02-27 |
| East and North Hertfordshire NHS TrustNew | Other | 1 | £300k | 0.0% | 2024-10-14 |
| The City of Liverpool College | Other | 1 | £300k | 0.0% | |
| Leeds City Council | Other | 1 | £298k | 0.0% | 2020-10-02 |
| HM Land Registry | Other | 1 | £298k | 0.0% | 2021-09-06 |
| Doncaster College | Other | 1 | £287k | 0.0% | 2023-08-15 |
| DERBYSHIRE COMMUNITY HEALTH SERVICES NHS FOUNDATION TRUST | Other | 1 | £275k | 0.0% | 2023-02-07 |
| Lincolnshire Partnership NHS Foundation Trust | Other | 1 | £274k | 0.0% | 2023-01-23 |
| West Berkshire CouncilNew | Other | 1 | £263k | 0.0% | 2025-07-31 |
| Rotherham MBC | Other | 3 | £261k | 0.0% | 2020-01-03 |
| Police and Crime Commissioner for LincolnshireNew | Other | 1 | £245k | 0.0% | 2026-02-13 |
| West Herts College | Other | 1 | £239k | 0.0% | 2023-08-14 |
| Coleg Cambria | Other | 1 | £238k | 0.0% | 2022-10-27 |
| DERBY CITY COUNCIL | Other | 1 | £219k | 0.0% | 2019-12-31 |
| Orchard Hill College & Academy Trust | Other | 1 | £214k | 0.0% | 2021-02-15 |
| Procurement for Housing | Other | 3 | £208k | 0.0% | 2016-08-15 |
| Look Ahead Care and Support | Other | 1 | £208k | 0.0% | 2017-06-07 |
| Rotherham Metropolitan Borough Council | Other | 3 | £203k | 0.0% | 2025-10-30 |
| St Helens Council | Other | 1 | £200k | 0.0% | 2024-01-30 |
| Humankind Charity | Other | 1 | £200k | 0.0% | 2023-07-11 |
| Nuclear Restoration ServicesNew | Other | 1 | £186k | 0.0% | 2024-06-27 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 3 | £180k | 0.0% | 2026-02-05 |
| South West Police Procurement ServiceNew | Other | 1 | £180k | 0.0% | 2024-08-01 |
| Nottingham City Council | Other | 1 | £175k | 0.0% | 2021-09-07 |
| City of Wolverhampton College | Other | 1 | £173k | 0.0% | 2023-10-25 |
| Natural History Museum | Other | 2 | £164k | 0.0% | 2021-07-30 |
| Isle of Wight Council | Other | 4 | £162k | 0.0% | 2024-04-26 |
| Bilborough College | Other | 1 | £161k | 0.0% | 2022-03-30 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 1 | £150k | 0.0% | 2022-12-13 |
| Lichfield District Council | Other | 3 | £149k | 0.0% | 2024-11-14 |
| Somerset County Council | Other | 1 | £118k | 0.0% | 2021-09-30 |
| Ashford Borough CouncilNew | Other | 2 | £118k | 0.0% | 2025-01-28 |
| Royal Holloway and Bedford New CollegeNew | Other | 1 | £115k | 0.0% | 2025-06-25 |
| Salford City College | Other | 1 | £115k | 0.0% | 2023-11-27 |
| Enfield County School for Girls | Other | 1 | £102k | 0.0% | 2023-08-10 |
| VIVIDNew | Other | 1 | £100k | 0.0% | 2025-02-27 |
| North Hertfordshire District Council | Other | 2 | £100k | 0.0% | 2025-10-31 |
| Thames Valley PoliceNew | Other | 1 | £99k | 0.0% | 2024-12-11 |
| ACCENT HOUSING LIMITED | Other | 1 | £91k | 0.0% | 2023-08-11 |
| CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE | Other | 1 | £90k | 0.0% | 2023-11-22 |
| Epping Forest District Council | Other | 2 | £90k | 0.0% | 2025-05-12 |
| Folkestone and Hythe District Council | Other | 2 | £89k | 0.0% | 2025-05-23 |
| Nottinghamshire County Council | Other | 1 | £80k | 0.0% | 2023-09-28 |
| Oxford City Council | Other | 1 | £80k | 0.0% | 2022-09-30 |
| The Windsor Forest Colleges Group | Other | 1 | £76k | 0.0% | 2021-12-24 |
| DUE NORTH LIMITEDNew | Other | 1 | £70k | 0.0% | 2025-08-28 |
| Leicestershire County CouncilNew | Other | 1 | £70k | 0.0% | 2025-08-21 |
| Paradigm Housing Group | Other | 1 | £70k | 0.0% | 2023-06-09 |
| Coventry City Council | Other | 2 | £70k | 0.0% | 2022-09-30 |
| First Ark Group | Other | 1 | £70k | 0.0% | 2017-09-12 |
| University of Bedfordshire | Other | 1 | £69k | 0.0% | 2022-06-16 |
| University of BristolNew | Other | 1 | £60k | 0.0% | 2024-05-31 |
| DEFRA | Other | 1 | £60k | 0.0% | 2023-02-09 |
| Livv Housing Group | Other | 1 | £60k | 0.0% | 2022-12-05 |
| Shropshire Council | Other | 1 | £60k | 0.0% | 2019-08-12 |
| Lancashire County Council | Other | 1 | £58k | 0.0% | 2023-02-03 |
| Yeovil College | Other | 1 | £55k | 0.0% | 2022-03-21 |
| Lancaster City CouncilNew | Other | 1 | £54k | 0.0% | 2024-08-15 |
| Suffolk Coastal District Council and Waveney District Council | Other | 1 | £54k | 0.0% | 2023-06-30 |
| Humberside Fire & Rescue ServiceNew | Other | 1 | £51k | 0.0% | 2025-01-14 |
| Hull City Council | Other | 1 | £45k | 0.0% | 2023-03-29 |
| General Pharmaceutical Council | Other | 1 | £42k | 0.0% | 2022-11-14 |
| Nottinghamshire Fire and Rescue ServiceNew | Other | 1 | £42k | 0.0% | 2025-02-07 |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 1 | £39k | 0.0% | 2023-10-31 |
| DRIVER & VEHICLE LICENSING AGENCY | Other | 1 | £37k | 0.0% | 2023-02-06 |
| Blackburn College | Other | 1 | £36k | 0.0% | 2017-11-29 |
| ROOFTOP HOUSING GROUP LIMITEDNew | Other | 1 | £36k | 0.0% | 2026-03-13 |
| Dartford Borough CouncilNew | Other | 1 | £35k | 0.0% | 2024-11-19 |
| Kirklees Council | Other | 1 | £34k | 0.0% | 2017-11-23 |
| The Queen Elizabeth Hospital King's Lynn NHS Foundation Trust | Other | 1 | £22k | 0.0% | 2021-03-31 |
| Merseytravel | Other | 1 | £22k | 0.0% | 2020-03-13 |
| DfTc - Department for Transport | Other | 1 | £20k | 0.0% | 2023-05-26 |
| 2buy2.com Limited | Other | 1 | £0k | 0.0% | 2017-09-01 |
| COUNTESS OF CHESTER HOSPITAL NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | 2020-06-01 |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITEDNew | Other | 2 | £0k | 0.0% | 2024-07-31 |
| Loughborough College | Other | 2 | £0k | 0.0% | 2024-08-15 |
| The University of Bolton | Other | 1 | £0k | 0.0% | 2023-11-21 |
| UK Debt Management Office | Other | 1 | £0k | 0.0% | 2021-12-03 |
| Stopsley High school | Other | 1 | £0k | 0.0% | 2021-10-08 |
| any of the projects listed on the portal | Other | 1 | £0k | 0.0% | 2018-01-30 |
| Llywodraeth Cymru / Welsh Government - Commercial Delivery | Other | 3 | £0k | 0.0% | |
| Isle of Wight | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 2 | £0k | 0.0% | |
| The Common Services Agency (more commonly known as NHS National Services Scotland) (NSS) | Other | 1 | £0k | 0.0% | |
| Warwickshire County Council | Other | 1 | £0k | 0.0% | |
| CBG Buying | Other | 1 | £0k | 0.0% | |
| Cornwall Council | Other | 1 | £0k | 0.0% | |
| Scottish Government | Other | 1 | £0k | 0.0% | |
| Nuclear Restoration Services Limited | Other | 1 | £0k | 0.0% | |
| Public Sector | Other | 1 | £0k | 0.0% | |
| HertsFullstop Ltd | Other | 1 | £0k | 0.0% | |
| Guy's and St Thomas' NHS Foundation Trust | Other | 2 | £0k | 0.0% | |
| MAG AIRPORT LIMITED | Other | 1 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of | Other | 1 | £0k | 0.0% | |
| North Western Universities Purchasing Consortium Ltd | Other | 1 | £0k | 0.0% | |
| Kent County Council (t/a KCS Procurement Services) | Other | 2 | £0k | 0.0% | |
| UNIVERSITY OF SHEFFIELD | Other | 1 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 1 | £0k | 0.0% | |
| The Association of North East Councils Limited | Other | 1 | £0k | 0.0% | |
| Department for Transport | Other | 1 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 6 | £0k | 0.0% | |
| NHS London Procurement Partnership | Other | 1 | £0k | 0.0% | |
| Welsh Government | Other | 1 | £0k | 0.0% | |
| Erewash Borough Council | Other | 1 | £0k | 0.0% | |
| Southend-on-Sea City Council | Other | 1 | £0k | 0.0% | |
| Education | Other | 2 | £0k | 0.0% | |