| North Yorkshire County Council | Other | 2 | £2m | 9.3% | 2023-05-26 |
| Suffolk County Council | Other | 2 | £2m | 8.9% | 2026-03-01 |
| Central Bedfordshire CouncilNew | Other | 1 | £1m | 7.6% | 2025-03-03 |
| Dorset CouncilNew | Other | 2 | £1m | 7.3% | 2025-09-30 |
| Cambridgeshire County CouncilNew | Other | 2 | £891k | 5.2% | 2024-08-09 |
| GREATER MANCHESTER EDUCATION TRUSTNew | Other | 1 | £765k | 4.5% | 2024-09-21 |
| Southend-on-sea Borough Council | Other | 2 | £764k | 4.5% | 2024-01-02 |
| Transport for London | Other | 1 | £732k | 4.3% | 2023-03-30 |
| Newcastle City Council | Other | 2 | £723k | 4.2% | 2024-03-25 |
| Rotherham Metropolitan Borough Council | Other | 2 | £614k | 3.6% | 2023-03-16 |
| Redcar and Cleveland Borough Council | Other | 5 | £540k | 3.2% | 2024-03-13 |
| Bedford Borough Council | Other | 2 | £526k | 3.1% | 2023-07-03 |
| Luton CouncilNew | Other | 1 | £500k | 2.9% | 2025-03-26 |
| City of London Corporation | Other | 1 | £496k | 2.9% | 2021-09-02 |
| Darlington Borough Council | Other | 3 | £446k | 2.6% | 2025-01-30 |
| Manchester City Council | Other | 3 | £427k | 2.5% | 2021-09-19 |
| London Borough of LambethNew | Other | 2 | £412k | 2.4% | 2024-07-01 |
| West Sussex County CouncilNew | Other | 1 | £360k | 2.1% | 2025-03-13 |
| Doncaster MBC | Other | 1 | £325k | 1.9% | 2017-12-21 |
| Nottingham City Council | Other | 2 | £304k | 1.8% | 2025-10-14 |
| Barnsley Metropolitan Borough Council | Other | 4 | £251k | 1.5% | 2021-02-25 |
| capitalEsourcing | Other | 1 | £240k | 1.4% | 2018-05-04 |
| Cheshire West and Chester Council | Other | 2 | £235k | 1.4% | 2024-01-26 |
| Westmorland and Furness CouncilNew | Other | 1 | £220k | 1.3% | 2025-01-31 |
| St Helens Council | Other | 1 | £182k | 1.1% | 2024-03-31 |
| City of Bradford Metropolitan District Council | Other | 3 | £179k | 1.0% | 2023-01-19 |
| Liverpool City Council | Other | 1 | £146k | 0.9% | 2023-11-12 |
| EU SUPPLY LIMITEDNew | Other | 1 | £144k | 0.8% | 2024-11-13 |
| Surrey County Council | Other | 1 | £142k | 0.8% | 2018-09-30 |
| Sunderland City Council | Other | 2 | £139k | 0.8% | 2022-04-06 |
| Brighton and Hove City Council | Other | 1 | £128k | 0.7% | 2017-03-29 |
| Durham County Council | Other | 1 | £122k | 0.7% | 2023-10-31 |
| Bradford Metropolitan District Council | Other | 2 | £105k | 0.6% | 2021-01-31 |
| Borough Council of Calderdale | Other | 1 | £98k | 0.6% | 2023-09-20 |
| London Borough Of Islington | Other | 1 | £77k | 0.5% | 2024-01-26 |
| Leeds City Council | Other | 2 | £71k | 0.4% | 2020-12-15 |
| Sheffield City Council | Other | 1 | £68k | 0.4% | 2024-03-30 |
| East Sussex County Council | Other | 1 | £53k | 0.3% | 2023-10-16 |
| City of Doncaster Council | Other | 1 | £35k | 0.2% | 2023-03-30 |
| Dudley Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |
| NORTHERN GAS NETWORKS LIMITED | Other | 1 | £0k | 0.0% | |
| Conwy County Borough Council | Other | 1 | £0k | 0.0% | |
| Leicester City Council | Other | 1 | £0k | 0.0% | |
| London Borough of Camden | Other | 1 | £0k | 0.0% | |
| The Mayor and Commonality and Citizens of the City of London | Other | 1 | £0k | 0.0% | |
| The Association of North East Councils Limited | Other | 1 | £0k | 0.0% | |