| PROCURE PLUS HOLDINGS LIMITED | Other | 8 | £79m | 30.3% | 2023-07-17 |
| CIRRUS PURCHASING LTD | Other | 2 | £58m | 22.4% | 2023-07-07 |
| Procurement for Housing | Other | 3 | £28m | 10.6% | 2023-04-01 |
| Spectrum Housing Group | Other | 1 | £14m | 5.2% | 2016-01-07 |
| STAR Procurement C/O Trafford CouncilNew | Other | 2 | £11m | 4.1% | 2025-05-07 |
| NORTH WESTERN UNIVERSITIES PURCHASING CONSORTIUM LIMITED | Other | 2 | £11m | 4.1% | 2019-12-23 |
| Fusion21 Members Consortium | Other | 2 | £8m | 3.0% | 2020-11-10 |
| Ark Housing Consultancy | Other | 1 | £7m | 2.7% | 2019-03-18 |
| Lancashire County Council | Other | 1 | £6m | 2.3% | 2016-01-25 |
| City of Doncaster Council | Other | 1 | £5m | 2.1% | 2023-09-29 |
| Espo | Other | 2 | £5m | 2.0% | 2019-03-30 |
| Bristol City Council | Other | 2 | £5m | 1.9% | 2021-03-15 |
| YPO | Other | 2 | £4m | 1.6% | 2020-11-02 |
| Bolton at HomeNew | Other | 1 | £3m | 1.1% | 2025-02-03 |
| East Suffolk CouncilNew | Other | 2 | £3m | 1.0% | 2025-07-02 |
| Barcud Shared ServicesNew | Other | 1 | £2m | 0.7% | 2025-09-03 |
| WESTWARD HOUSING GROUP LIMITED | Other | 1 | £2m | 0.6% | 2017-10-31 |
| Yarlington Housing Group Ltd | Other | 1 | £1m | 0.5% | 2018-03-23 |
| East Riding of Yorkshire | Other | 6 | £1m | 0.4% | 2021-03-31 |
| Bournemouth Christchurch and Poole Council | Other | 2 | £1m | 0.4% | 2020-03-19 |
| Kirklees Council | Other | 4 | £825k | 0.3% | 2018-06-13 |
| Durham County Council | Other | 9 | £795k | 0.3% | 2023-05-03 |
| Freebridge Community Housing Limited | Other | 2 | £540k | 0.2% | 2018-03-29 |
| University Of The West Of EnglandNew | Other | 1 | £459k | 0.2% | 2025-09-01 |
| City of Bradford Metropolitan District Council | Other | 2 | £455k | 0.2% | 2024-02-29 |
| NHS Property ServicesNew | Other | 1 | £450k | 0.2% | 2025-02-14 |
| South Holland District Council | Other | 1 | £450k | 0.2% | 2020-11-18 |
| Leicestershire Partnership NHS Trust | Other | 2 | £350k | 0.1% | 2026-03-03 |
| North Yorkshire County Council | Other | 2 | £344k | 0.1% | 2020-05-04 |
| Middlesbrough CouncilNew | Other | 3 | £337k | 0.1% | 2025-08-21 |
| Sandwell Metropolitan Borough Council | Other | 1 | £337k | 0.1% | 2019-04-08 |
| Greenfields Community Housing | Other | 1 | £300k | 0.1% | 2017-06-01 |
| Bradford Metropolitan District Council | Other | 25 | £285k | 0.1% | 2020-11-02 |
| Bradford Teaching Hospitals NHS Foundation TrustNew | Other | 1 | £229k | 0.1% | 2025-02-21 |
| Newcastle City Council | Other | 2 | £229k | 0.1% | 2017-06-19 |
| UNIVERSITY OF SALFORD(THE)New | Other | 1 | £217k | 0.1% | 2026-01-26 |
| The City of Liverpool CollegeNew | Other | 2 | £203k | 0.1% | 2026-04-23 |
| FCDO Services | Other | 8 | £156k | 0.1% | 2020-09-28 |
| Leeds City Council | Other | 1 | £108k | 0.0% | 2019-03-13 |
| Lancaster City Council | Other | 2 | £108k | 0.0% | 2018-04-12 |
| Lancashire Constabulary | Other | 1 | £90k | 0.0% | 2022-04-29 |
| Herefordshire Housing Limited | Other | 4 | £68k | 0.0% | 2017-05-25 |
| East Riding of Yorkshire Council | Other | 1 | £44k | 0.0% | 2024-04-04 |
| Blackburn With Darwen Borough Council | Other | 1 | £43k | 0.0% | 2021-10-03 |
| The Kingston Wing Within Yeovil District Hospital | Other | 1 | £39k | 0.0% | 2020-05-28 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 2 | £27k | 0.0% | 2022-01-25 |
| Met Office | Other | 1 | £14k | 0.0% | 2017-09-04 |
| ADVANTAGE SOUTHWEST LLP | Other | 1 | £0k | 0.0% | 2019-09-30 |
| Hampshire County Council | Other | 1 | £0k | 0.0% | 2018-02-09 |
| Communities & Housing Investment Consortium Ltd (CHIC)New | Other | 2 | £0k | 0.0% | 2026-05-13 |
| Places for People Group LimitedNew | Other | 3 | £0k | 0.0% | 2026-02-02 |
| Leeds Beckett UniversityNew | Other | 1 | £0k | 0.0% | 2026-01-23 |
| SUPPLY CHAIN COORDINATION LIMITEDNew | Other | 2 | £0k | 0.0% | 2025-09-30 |
| Broadland Housing Association LimitedNew | Other | 1 | £0k | 0.0% | 2025-09-24 |
| NOE CPC | Other | 1 | £0k | 0.0% | 2019-10-14 |
| SOVEREIGN HOUSING ASSOCIATION LIMITED | Other | 1 | £0k | 0.0% | 2017-12-14 |
| Chesterfield Royal Hospital NHS Foundation Trust | Other | 1 | £0k | 0.0% | 2017-01-19 |
| EFFICIENCY EAST MIDLANDS LIMITED | Other | 2 | £0k | 0.0% | |
| Kent County Council (t/a LASER Energy) | Other | 5 | £0k | 0.0% | |
| MEDWAY NHS FOUNDATION TRUST | Other | 2 | £0k | 0.0% | |
| UK Research and Innovation | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 2 | £0k | 0.0% | |
| SOUTHERN WATER SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| APUC Limited | Other | 1 | £0k | 0.0% | |
| Glasgow City Council | Other | 1 | £0k | 0.0% | |
| Gateshead Council | Other | 1 | £0k | 0.0% | |
| North Western Universities Purchasing Consortium | Other | 2 | £0k | 0.0% | |
| Loreburn Housing Association | Other | 1 | £0k | 0.0% | |
| Adra (Tai) Cyf | Other | 2 | £0k | 0.0% | |
| Belfast City Council | Other | 1 | £0k | 0.0% | |
| Cirrus Consortium C/O Grand Union Housing Group | Other | 1 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| FE South West College | Other | 1 | £0k | 0.0% | |
| East Ayrshire Council | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| the Education Authority | Other | 7 | £0k | 0.0% | |
| Southampton City Council | Other | 1 | £0k | 0.0% | |
| Greater Manchester Combined Authority - GMP | Other | 3 | £0k | 0.0% | |
| KBS MARITIME LIMITED | Other | 1 | £0k | 0.0% | |
| Chelmer Housing Partnership Limited | Other | 2 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| NORTH TYNESIDE COUNCIL | Other | 2 | £0k | 0.0% | |
| Royal Armouries Museum | Other | 1 | £0k | 0.0% | |
| NI Ambulance Service Trust | Other | 1 | £0k | 0.0% | |
| United Kingdom Atomic Energy Authority | Other | 1 | £0k | 0.0% | |
| Northern Ireland Housing Executive | Other | 1 | £0k | 0.0% | |