| The Association of North East Councils Limited | Other | 11 | £345m | 31.6% | 2026-04-09 |
| SUPPLY CHAIN COORDINATION LIMITEDNew | Other | 22 | £114m | 10.5% | 2026-02-13 |
| Leicestershire County Council, trading as ESPONew | Other | 14 | £104m | 9.6% | 2026-03-12 |
| THE WHITE HORSE FEDERATIONNew | Other | 1 | £90m | 8.3% | 2026-04-01 |
| Mid South Essex NHS Foundation TrustNew | Other | 4 | £80m | 7.3% | 2025-08-01 |
| NHS Supply Chain | Other | 13 | £73m | 6.7% | 2024-12-03 |
| YPO | Other | 11 | £49m | 4.5% | 2024-11-08 |
| HealthTrust Europe LLP (HTE) acting as agent for the University Hospitals of Coventry and Warwickshire NHS Trust (“UHCW”) | Other | 2 | £33m | 3.0% | 2021-02-12 |
| Dartford Borough Council | Other | 5 | £24m | 2.2% | 2024-10-22 |
| Liverpool City Council | Other | 3 | £16m | 1.4% | 2021-01-06 |
| Crown Commercial Service | Other | 1 | £15m | 1.4% | 2020-04-06 |
| Department for Education | Other | 1 | £15m | 1.3% | 2022-12-05 |
| Network Rail Ltd | Other | 1 | £12m | 1.1% | 2020-03-10 |
| the Education AuthorityNew | Other | 13 | £11m | 1.0% | 2026-02-18 |
| STAR Procurement C/O Trafford CouncilNew | Other | 2 | £11m | 1.0% | 2025-05-07 |
| Yorkshire Purchasing OrganisationNew | Other | 1 | £10m | 0.9% | 2025-12-10 |
| North Western Universities Purchasing Consortium | Other | 10 | £10m | 0.9% | 2025-05-16 |
| East Riding of Yorkshire Council | Other | 12 | £8m | 0.7% | 2025-04-01 |
| Dorset CouncilNew | Other | 2 | £8m | 0.7% | 2024-05-29 |
| Department of Health and Social Care (T&T) | Other | 3 | £4m | 0.4% | 2021-01-31 |
| Procurement for HousingNew | Other | 9 | £4m | 0.3% | 2025-07-01 |
| N H S Shared Business Services | Other | 1 | £3m | 0.3% | 2024-02-27 |
| Lancashire County Council | Other | 3 | £3m | 0.3% | 2022-08-02 |
| BISHOP WILKINSON CATHOLIC EDUCATION TRUST | Other | 4 | £3m | 0.2% | 2025-04-07 |
| Hyde Housing Association | Other | 1 | £3m | 0.2% | 2018-06-29 |
| South East Consortium | Other | 1 | £3m | 0.2% | 2016-11-30 |
| City of Bradford Metropolitan District Council | Other | 3 | £2m | 0.2% | 2026-04-24 |
| Bournemouth Christchurch and Poole Council | Other | 2 | £2m | 0.2% | 2023-09-30 |
| Torbay Council | Other | 2 | £2m | 0.2% | 2025-11-25 |
| Plymouth City Council | Other | 1 | £2m | 0.2% | 2016-11-07 |
| North of England Commercial Procurement Collaborative (NOE CPC) | Other | 1 | £2m | 0.2% | 2021-03-23 |
| Stockport Metropolitan Borough Council | Other | 1 | £2m | 0.1% | 2016-09-01 |
| HM Land RegistryNew | Other | 1 | £1m | 0.1% | 2025-02-13 |
| NORTH WESTERN UNIVERSITIES PURCHASING CONSORTIUM LIMITED | Other | 1 | £1m | 0.1% | 2020-03-20 |
| Nottingham City Council | Other | 1 | £1m | 0.1% | 2018-08-13 |
| Knowsley Council | Other | 2 | £1m | 0.1% | 2022-09-22 |
| NEWCASTLE COLLEGE GROUP | Other | 1 | £1m | 0.1% | 2023-09-30 |
| North Yorkshire County Council | Other | 3 | £1m | 0.1% | 2022-05-30 |
| City of Doncaster CouncilNew | Other | 2 | £991k | 0.1% | 2025-02-06 |
| Corserv Limited | Other | 1 | £956k | 0.1% | 2019-03-29 |
| Longhurst Group | Other | 2 | £920k | 0.1% | 2023-03-31 |
| Department of Health & Social Care | Other | 2 | £918k | 0.1% | 2021-01-14 |
| Sheffield City Council | Other | 2 | £827k | 0.1% | 2022-03-02 |
| Northern Trains Limited | Other | 1 | £800k | 0.1% | 2023-01-24 |
| Brighton and Hove City Council | Other | 1 | £800k | 0.1% | 2020-07-06 |
| NEUPC Ltd | Other | 1 | £762k | 0.1% | 2019-07-02 |
| Hull City Council | Other | 3 | £750k | 0.1% | 2021-12-01 |
| Buckinghamshire Council | Other | 3 | £637k | 0.1% | 2023-07-31 |
| Housing 21 | Other | 3 | £616k | 0.1% | 2023-05-16 |
| Department for Business & TradeNew | Other | 1 | £600k | 0.1% | 2025-11-06 |
| ASTON UNIVERSITY | Other | 2 | £600k | 0.1% | 2024-12-10 |
| Cumbria County Council | Other | 1 | £563k | 0.1% | 2022-03-16 |
| THE EXTRACARE CHARITABLE TRUST | Other | 1 | £560k | 0.1% | 2023-07-05 |
| Leeds City Council | Other | 2 | £525k | 0.0% | 2021-06-30 |
| Bradford Teaching Hospitals NHS Foundation TrustNew | Other | 1 | £467k | 0.0% | 2025-11-10 |
| University of Bristol : University of Bristol | Other | 1 | £464k | 0.0% | 2020-12-17 |
| Shropshire Council | Other | 2 | £429k | 0.0% | 2023-07-27 |
| Greenshaw Learning Trust | Other | 4 | £421k | 0.0% | 2022-05-03 |
| UNIVERSITY OF MANCHESTER | Other | 1 | £400k | 0.0% | 2021-06-11 |
| Warwickshire County CouncilNew | Other | 2 | £350k | 0.0% | 2025-10-08 |
| MIDLAND HEART LIMITEDNew | Other | 1 | £340k | 0.0% | 2026-03-31 |
| Luton Council | Other | 3 | £330k | 0.0% | 2023-05-05 |
| CENTRE FOR PROCESS INNOVATION LIMITED | Other | 6 | £325k | 0.0% | 2025-10-30 |
| Midland Heart | Other | 1 | £320k | 0.0% | 2022-03-17 |
| University of WorcesterNew | Other | 1 | £315k | 0.0% | 2025-03-25 |
| Pension Protection Fund | Other | 2 | £300k | 0.0% | 2024-03-31 |
| Bristol City Council | Other | 2 | £300k | 0.0% | 2022-12-30 |
| Coventry University | Other | 2 | £294k | 0.0% | 2025-07-23 |
| Northern Ireland Housing ExecutiveNew | Other | 3 | £266k | 0.0% | 2025-12-04 |
| THE CALICO GROUP LIMITEDNew | Other | 1 | £245k | 0.0% | 2024-06-27 |
| Companies HouseNew | Other | 1 | £240k | 0.0% | 2025-03-05 |
| WAKEFIELD COUNCIL | Other | 2 | £240k | 0.0% | 2024-09-30 |
| University of ChesterNew | Other | 1 | £200k | 0.0% | 2024-08-28 |
| Essex Cares Limited | Other | 1 | £200k | 0.0% | 2024-01-02 |
| Oxfordshire County Council | Other | 2 | £198k | 0.0% | 2024-01-31 |
| Karbon Homes | Other | 2 | £194k | 0.0% | 2022-07-16 |
| Doncaster MBC | Other | 1 | £180k | 0.0% | 2020-02-14 |
| Homes for Haringey Ltd | Other | 1 | £180k | 0.0% | 2016-09-25 |
| Citizen Housing Group LtdNew | Other | 1 | £176k | 0.0% | 2024-09-01 |
| Norse GroupNew | Other | 2 | £174k | 0.0% | 2025-10-13 |
| Telford & Wrekin Council | Other | 2 | £160k | 0.0% | 2023-03-01 |
| Leicestershire County Council | Other | 1 | £160k | 0.0% | 2021-05-07 |
| Welland Procurement Unit | Other | 3 | £146k | 0.0% | 2023-07-03 |
| Wakefield and District Housing limited | Other | 1 | £142k | 0.0% | 2023-01-31 |
| Torus GroupNew | Other | 1 | £140k | 0.0% | 2025-03-24 |
| Notting Hill Genesis | Other | 1 | £140k | 0.0% | 2022-01-18 |
| Bradford Metropolitan District Council | Other | 1 | £140k | 0.0% | 2019-09-04 |
| South Tyneside Council | Other | 1 | £130k | 0.0% | 2021-01-11 |
| Gateshead Council | Other | 1 | £129k | 0.0% | 2020-12-16 |
| Swale Borough Council | Other | 2 | £123k | 0.0% | 2021-07-23 |
| Great Places Housing Group | Other | 1 | £101k | 0.0% | 2021-08-27 |
| Nuneaton & Bedworth Community Enterprises Limited (NAB) | Other | 1 | £100k | 0.0% | 2022-11-16 |
| Buckinghamshire and Milton Keynes Fire Authority | Other | 1 | £100k | 0.0% | 2021-07-11 |
| Rotherham Metropolitan Borough Council | Other | 1 | £97k | 0.0% | 2018-12-16 |
| South Yorkshire Fire & Rescue Service | Other | 1 | £96k | 0.0% | 2020-10-30 |
| Dorset & Wiltshire Fire and Rescue Service | Other | 1 | £90k | 0.0% | 2020-05-26 |
| BROMFORD FLAGSHIP LIMITEDNew | Other | 1 | £84k | 0.0% | 2025-01-01 |
| BROMFORD HOUSING GROUP LIMITED | Other | 1 | £84k | 0.0% | 2022-12-28 |
| Flagship Housing Group | Other | 1 | £80k | 0.0% | 2022-06-30 |
| Telford & Wrekin Council | Other | 1 | £80k | 0.0% | 2021-03-30 |
| Charnwood Borough Council | Other | 1 | £78k | 0.0% | 2019-06-14 |
| East Riding of Yorkshire | Other | 2 | £78k | 0.0% | 2020-05-22 |
| Somerset County Council | Other | 1 | £72k | 0.0% | 2022-01-09 |
| Devon and Somerset Fire and Rescue AuthorityNew | Other | 1 | £70k | 0.0% | 2025-11-25 |
| Wrekin Housing Trust Ltd | Other | 1 | £63k | 0.0% | 2017-12-19 |
| North Devon District Council | Other | 1 | £62k | 0.0% | 2019-01-04 |
| West Northamptonshire Council | Other | 1 | £60k | 0.0% | 2022-09-28 |
| Thurrock Council | Other | 1 | £60k | 0.0% | 2022-09-21 |
| West Yorkshire Combined Authority | Other | 1 | £60k | 0.0% | 2021-05-07 |
| UNIVERSITY OF NOTTINGHAM (THE) | Other | 1 | £58k | 0.0% | 2021-06-01 |
| National Employment Savings Trust (NEST) | Other | 1 | £50k | 0.0% | 2021-05-24 |
| Thanet District Council | Other | 1 | £50k | 0.0% | 2021-02-14 |
| Fylde Borough Council | Other | 1 | £50k | 0.0% | 2020-11-04 |
| Tees Valley Combined AuthorityNew | Other | 1 | £40k | 0.0% | 2025-03-03 |
| Office for Students | Other | 1 | £38k | 0.0% | 2020-12-17 |
| Stevenage Borough Council | Other | 1 | £29k | 0.0% | 2021-12-13 |
| Wiltshire Fire And Rescue ServiceNew | Other | 1 | £24k | 0.0% | 2025-08-21 |
| Exeter City CouncilNew | Other | 1 | £23k | 0.0% | 2025-12-25 |
| Stoke-on-Trent City Council | Other | 1 | £8k | 0.0% | 2024-05-20 |
| Wigan CouncilNew | Other | 1 | £0k | 0.0% | 2026-02-17 |
| WEST KENT HOUSING ASSOCIATIONNew | Other | 1 | £0k | 0.0% | 2025-07-31 |
| Oxford City Council | Other | 1 | £0k | 0.0% | 2024-02-09 |
| LIVEWEST HOMES LIMITED | Other | 1 | £0k | 0.0% | 2023-01-09 |
| NOE CPC | Other | 1 | £0k | 0.0% | 2016-12-20 |
| Sandwell Metropolitan Borough Council | Other | 1 | £0k | 0.0% | 2016-08-03 |
| HEALTHTRUST EUROPE | Other | 2 | £0k | 0.0% | 2016-06-17 |
| NHS Supply Chain operated by North of England Commercial Procurement Collaborative (who are hosted by Leeds and York Partnership NHS Foundation Trust) acting on behalf of Supply Chain Coordination Ltd | Other | 19 | £0k | 0.0% | |
| Mining Remediation Authority | Other | 1 | £0k | 0.0% | |
| Redcar and Cleveland Borough Council | Other | 4 | £0k | 0.0% | |
| DE MONTFORT UNIVERSITY | Other | 1 | £0k | 0.0% | |
| LONDON METROPOLITAN UNIVERSITY | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 15 | £0k | 0.0% | |
| Rhondda Cynon Taf CBC | Other | 1 | £0k | 0.0% | |
| Blackpool Council | Other | 1 | £0k | 0.0% | |
| Sunderland City Council | Other | 3 | £0k | 0.0% | |
| DIXONS ACADEMIES TRUST | Other | 1 | £0k | 0.0% | |
| NHS Supply Chain Coordination | Other | 1 | £0k | 0.0% | |
| NHS Supply Chain Operated by Supply Chain Coordination Ltd (SCCL) | Other | 2 | £0k | 0.0% | |
| CRAMLINGTON LEARNING VILLAGE TRUST | Other | 1 | £0k | 0.0% | |
| Education Village Academy Trust | Other | 1 | £0k | 0.0% | |
| Advance Learning Partnership | Other | 2 | £0k | 0.0% | |
| Hyde Housing Association Ltd | Other | 1 | £0k | 0.0% | |
| WISE Academies | Other | 1 | £0k | 0.0% | |
| Scottish Government | Other | 2 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 2 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 6 | £0k | 0.0% | |
| APUC Limited | Other | 1 | £0k | 0.0% | |
| Education Buying Group Ltd | Other | 1 | £0k | 0.0% | |
| Patient and Client Council (PCC) | Other | 1 | £0k | 0.0% | |
| BELFAST HEALTH AND SOCIAL CARE TRUST | Other | 1 | £0k | 0.0% | |
| TFW | Other | 1 | £0k | 0.0% | |
| Southern Universities Purchasing Consortium (SUPC) | Other | 1 | £0k | 0.0% | |
| The Shrewsbury and Telford Hospital NHS Trust | Other | 1 | £0k | 0.0% | |
| NHS Wales Shared Services Partnership (hosted by Velindre University NHS Trust) | Other | 1 | £0k | 0.0% | |
| HealthTrust Europe LLP (HTE) acting on behalf of Mid and South Essex NHS Foundation Trust | Other | 3 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| ECL The Care & Wellbeing Company | Other | 1 | £0k | 0.0% | |
| Pele Trust | Other | 1 | £0k | 0.0% | |
| Nottinghamshire Healthcare NHS Foundation Trust | Other | 1 | £0k | 0.0% | |
| Middletown Centre for Autism | Other | 2 | £0k | 0.0% | |
| South Lakeland District Council | Other | 1 | £0k | 0.0% | |
| N H S Supply Chain | Other | 1 | £0k | 0.0% | |
| Espo | Other | 1 | £0k | 0.0% | |
| COLLABORATIVE PROCUREMENT PARTNERSHIP LLP | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| Procurement Assist Limited c/o Integrated Facilities Management Bolton Ltd (iFM Bolton) | Other | 1 | £0k | 0.0% | |