| YPO | Other | 10 | £34m | 40.6% | 2025-03-20 |
| The Association of North East Councils LimitedNew | Other | 2 | £16m | 19.2% | 2025-02-03 |
| Espo | Other | 13 | £12m | 14.0% | 2022-01-31 |
| Bromsgrove District Council | Other | 2 | £10m | 12.1% | 2025-02-07 |
| London Borough of Barking and Dagenham | Other | 4 | £2m | 2.1% | 2026-04-15 |
| Lewes District CouncilNew | Other | 1 | £1m | 1.2% | 2026-03-24 |
| London Borough of Hackney | Other | 1 | £967k | 1.2% | 2018-12-20 |
| Wolverhampton City CouncilNew | Other | 1 | £740k | 0.9% | 2025-02-19 |
| New Forest District CouncilNew | Other | 1 | £644k | 0.8% | 2025-02-27 |
| Nottingham City CouncilNew | Other | 1 | £636k | 0.8% | 2025-07-30 |
| Braintree District Council | Other | 2 | £625k | 0.8% | 2021-12-05 |
| City of Bradford Metropolitan District CouncilNew | Other | 3 | £498k | 0.6% | 2025-12-22 |
| Luton Council | Other | 2 | £460k | 0.6% | 2024-02-28 |
| IslingtonNew | Other | 1 | £450k | 0.5% | 2025-12-17 |
| Leeds City Council | Other | 4 | £432k | 0.5% | 2026-01-14 |
| London Borough of Hillingdon | Other | 2 | £377k | 0.5% | 2021-01-26 |
| Stockton Borough Council | Other | 1 | £338k | 0.4% | 2021-08-31 |
| Hampshire County Council | Other | 2 | £290k | 0.3% | 2026-01-21 |
| Rotherham Metropolitan Borough Council | Other | 2 | £279k | 0.3% | 2023-07-20 |
| Middlesbrough CouncilNew | Other | 4 | £220k | 0.3% | 2025-12-05 |
| Cheshire West and Chester CouncilNew | Other | 2 | £200k | 0.2% | 2026-01-28 |
| Wandsworth Borough CouncilNew | Other | 1 | £195k | 0.2% | 2024-09-11 |
| capitalEsourcingNew | Other | 1 | £192k | 0.2% | 2024-08-07 |
| Kirklees CouncilNew | Other | 2 | £191k | 0.2% | 2024-11-18 |
| East Riding of Yorkshire Council | Other | 2 | £171k | 0.2% | 2019-11-26 |
| DERBY CITY COUNCIL | Other | 1 | £150k | 0.2% | 2021-08-02 |
| Peterborough City CouncilNew | Other | 1 | £130k | 0.2% | 2025-08-01 |
| London Borough of Barnet | Other | 1 | £125k | 0.2% | 2021-10-01 |
| North Yorkshire County CouncilNew | Other | 2 | £122k | 0.1% | 2026-04-30 |
| Wigan Council | Other | 2 | £113k | 0.1% | 2025-02-27 |
| Slough Borough CouncilNew | Other | 1 | £90k | 0.1% | 2026-02-12 |
| London Borough Of Barking And Dagenham Careers ServiceNew | Other | 1 | £88k | 0.1% | 2025-02-28 |
| Ipswich Borough CouncilNew | Other | 1 | £75k | 0.1% | 2025-06-10 |
| Manchester City Council | Other | 1 | £67k | 0.1% | 2017-10-20 |
| Redditch Borough CouncilNew | Other | 1 | £50k | 0.1% | 2025-05-08 |
| Herefordshire Council | Other | 1 | £45k | 0.1% | 2022-07-28 |
| Leicester City Council | Other | 1 | £42k | 0.1% | 2021-11-03 |
| Redcar and Cleveland Borough Council | Other | 1 | £35k | 0.0% | 2021-08-17 |
| NORTH TYNESIDE COUNCIL | Other | 1 | £25k | 0.0% | 2018-01-16 |
| Hull City Council | Other | 1 | £16k | 0.0% | |
| Bournemouth Christchurch and Poole CouncilNew | Other | 2 | £16k | 0.0% | 2025-08-21 |
| Leicestershire County Council, trading as ESPONew | Other | 8 | £0k | 0.0% | 2026-01-08 |
| Oxford Direct Services Ltd/Oxford Direct Services Trading Ltd | Other | 1 | £0k | 0.0% | 2021-02-02 |
| OXFORD DIRECT SERVICES LIMITED | Other | 1 | £0k | 0.0% | 2021-02-01 |
| Royal Borough of Greenwich | Other | 1 | £0k | 0.0% | 2017-07-25 |
| Canterbury Environment Company Ltd | Other | 1 | £0k | 0.0% | |
| London Borough of Wandsworth | Other | 1 | £0k | 0.0% | |
| Dacorum Borough Council | Other | 2 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 4 | £0k | 0.0% | |
| London Borough of Richmond Upon Thames | Other | 1 | £0k | 0.0% | |