| The Association of North East Councils Limited | Other | 4 | £53m | 37.9% | 2025-02-03 |
| Welland ProcurementNew | Other | 2 | £18m | 12.8% | 2025-03-31 |
| BIP SOLUTIONS LIMITEDNew | Other | 1 | £10m | 7.3% | 2024-07-02 |
| Espo | Other | 6 | £9m | 6.6% | 2022-03-21 |
| Yorkshire Purchasing Organisation | Other | 1 | £8m | 5.4% | 2023-09-12 |
| YPO | Other | 2 | £6m | 4.1% | 2019-09-19 |
| Halton Housing C/O Link Asset Services | Other | 1 | £5m | 3.4% | 2020-05-29 |
| Commercial Services Kent Limited | Other | 4 | £3m | 2.5% | 2025-05-20 |
| Durham County Council | Other | 4 | £3m | 2.2% | 2026-01-16 |
| Hertfordshire County Council | Other | 3 | £3m | 2.0% | 2023-03-17 |
| London Borough of Hackney | Other | 2 | £2m | 1.7% | 2026-01-06 |
| East Riding of Yorkshire CouncilNew | Other | 2 | £2m | 1.4% | 2025-12-16 |
| NORTH TYNESIDE COUNCIL | Other | 6 | £2m | 1.1% | 2023-12-07 |
| East Riding of Yorkshire | Other | 2 | £1m | 0.8% | 2020-09-22 |
| Middlesbrough Council | Other | 5 | £905k | 0.6% | 2024-09-09 |
| Doncaster Metropolitan Borough Council | Other | 1 | £729k | 0.5% | 2019-03-26 |
| DERBY CITY COUNCIL | Other | 4 | £719k | 0.5% | 2023-08-14 |
| Wigan Council | Other | 1 | £718k | 0.5% | 2021-02-24 |
| Basingstoke and Deane Borough Council | Other | 3 | £674k | 0.5% | 2026-02-27 |
| Kirklees Metropolitan Council | Other | 3 | £634k | 0.5% | 2022-04-26 |
| Bassetlaw District Council | Other | 3 | £596k | 0.4% | 2018-08-28 |
| Supply Hertfordshire | Other | 1 | £528k | 0.4% | 2018-09-17 |
| Dudley Metropolitan Borough Council | Other | 1 | £500k | 0.4% | 2020-02-17 |
| Braintree District Council | Other | 3 | £481k | 0.3% | 2023-02-03 |
| London Borough of Barnet | Other | 1 | £481k | 0.3% | 2023-09-08 |
| Bromsgrove District CouncilNew | Other | 1 | £400k | 0.3% | 2025-05-01 |
| London Borough of MertonNew | Other | 1 | £347k | 0.2% | 2026-04-20 |
| Norse Commercial Services Ltd | Other | 1 | £345k | 0.2% | 2019-01-17 |
| Kirklees Council | Other | 2 | £317k | 0.2% | 2022-04-26 |
| Brighton and Hove City CouncilNew | Other | 1 | £315k | 0.2% | 2025-02-10 |
| Wyre Forest District Council | Other | 3 | £298k | 0.2% | 2023-02-28 |
| Redditch Borough Council | Other | 2 | £276k | 0.2% | 2026-01-23 |
| Canterbury City Council | Other | 1 | £269k | 0.2% | 2021-07-07 |
| Pembrokeshire County Council | Other | 2 | £265k | 0.2% | 2021-01-18 |
| Bath and North East Somerset Council | Other | 1 | £260k | 0.2% | 2021-05-16 |
| North West Leicestershire District Council | Other | 2 | £258k | 0.2% | 2019-12-16 |
| Carlisle City Council | Other | 2 | £244k | 0.2% | 2016-10-18 |
| North East Lincolnshire Council | Other | 1 | £242k | 0.2% | 2021-04-22 |
| North Devon District Council | Other | 1 | £240k | 0.2% | 2017-01-10 |
| Knowsley Council | Other | 2 | £229k | 0.2% | 2021-08-03 |
| London Borough Of Islington | Other | 2 | £217k | 0.2% | 2018-04-24 |
| LONDON BOROUGH OF HAVERING | Other | 1 | £202k | 0.1% | 2017-01-17 |
| Stockton Borough Council | Other | 1 | £191k | 0.1% | 2023-02-17 |
| Peterborough City Council | Other | 1 | £177k | 0.1% | 2022-02-07 |
| City of Doncaster Council | Other | 1 | £170k | 0.1% | 2023-11-22 |
| Derbyshire Dales District CouncilNew | Other | 1 | £163k | 0.1% | 2024-08-22 |
| Gwynedd Council | Other | 1 | £163k | 0.1% | 2018-02-20 |
| Ipswich Borough CouncilNew | Other | 1 | £162k | 0.1% | 2025-06-06 |
| Monmouthshire County CouncilNew | Other | 1 | £162k | 0.1% | 2025-10-23 |
| Cheshire West and Chester CouncilNew | Other | 1 | £158k | 0.1% | 2025-09-19 |
| Barnsley Metropolitan Borough Council | Other | 2 | £157k | 0.1% | 2022-09-16 |
| MerseytravelNew | Other | 1 | £154k | 0.1% | 2024-09-27 |
| South Ribble Borough Council | Other | 1 | £139k | 0.1% | 2020-10-15 |
| North Warwickshire Borough Council | Other | 1 | £135k | 0.1% | 2019-03-05 |
| Ryedale District Council | Other | 1 | £134k | 0.1% | 2021-04-22 |
| Nottingham City Council | Other | 1 | £131k | 0.1% | 2021-04-16 |
| Lewes District Council | Other | 1 | £129k | 0.1% | 2018-08-24 |
| Horsham District Council | Other | 1 | £128k | 0.1% | 2022-09-12 |
| Adur & Worthing Council | Other | 1 | £117k | 0.1% | 2020-06-18 |
| UBICO LIMITED | Other | 1 | £108k | 0.1% | 2021-05-11 |
| Sedgemoor District Council | Other | 1 | £99k | 0.1% | 2022-07-13 |
| Scarborough Borough Council | Other | 1 | £78k | 0.1% | 2018-01-16 |
| UNIVERSITY OF SOUTHAMPTONNew | Other | 1 | £77k | 0.1% | 2025-06-06 |
| Wyre Council | Other | 1 | £66k | 0.0% | 2022-11-28 |
| Fylde Borough Council | Other | 1 | £65k | 0.0% | 2022-07-13 |
| The University of Nottingham | Other | 1 | £60k | 0.0% | 2016-07-11 |
| TAMESIDE METROPOLITAN BOROUGH COUNCIL | Other | 2 | £45k | 0.0% | 2022-07-27 |
| Lancashire County Council | Other | 1 | £0k | 0.0% | 2016-12-06 |
| Suffolk Sourcing | Other | 1 | £0k | 0.0% | 2017-09-25 |
| Harborough District Council | Other | 2 | £0k | 0.0% | |
| National Procurement Service (Welsh Government) | Other | 1 | £0k | 0.0% | |
| East Ayrshire Council | Other | 2 | £0k | 0.0% | |
| Halton Housing c/o Link Group | Other | 1 | £0k | 0.0% | |
| Falkirk Council | Other | 1 | £0k | 0.0% | |
| Kent County Council (t/a KCS Procurement Services) | Other | 3 | £0k | 0.0% | |
| Scotland Excel | Other | 5 | £0k | 0.0% | |
| Lancaster City Council | Other | 1 | £0k | 0.0% | |