| Braintree District Council | Other | 1 | £33m | 23.0% | 2017-01-02 |
| Nottingham City Council | Other | 1 | £25m | 17.3% | 2020-09-24 |
| The Association of North East Councils Limited | Other | 3 | £21m | 14.8% | 2025-02-03 |
| Bassetlaw District Council | Other | 1 | £20m | 13.8% | 2016-10-19 |
| Espo | Other | 2 | £6m | 4.3% | 2020-11-30 |
| DERBY CITY COUNCIL | Other | 3 | £5m | 3.5% | 2025-03-21 |
| Durham County CouncilNew | Other | 2 | £4m | 2.8% | 2025-01-28 |
| Nottinghamshire County CouncilNew | Other | 4 | £2m | 1.5% | 2026-03-10 |
| Castle Point Borough CouncilNew | Other | 4 | £2m | 1.5% | 2026-03-17 |
| Lichfield District CouncilNew | Other | 1 | £2m | 1.3% | 2025-01-08 |
| Warrington Borough CouncilNew | Other | 1 | £2m | 1.2% | 2025-04-30 |
| Northumberland County CouncilNew | Other | 1 | £2m | 1.1% | 2025-04-11 |
| Alliance Environmental Services LtdNew | Other | 1 | £2m | 1.1% | 2025-03-10 |
| South Norfolk CouncilNew | Other | 1 | £1m | 1.0% | 2025-01-28 |
| Chorley CouncilNew | Other | 1 | £1m | 1.0% | 2025-03-25 |
| Dudley Metropolitan Borough CouncilNew | Other | 1 | £1m | 0.9% | 2025-05-21 |
| North Northamptonshire CouncilNew | Other | 1 | £1m | 0.8% | 2025-05-20 |
| Reading Borough CouncilNew | Other | 1 | £1m | 0.8% | 2025-12-16 |
| RUGBY BOROUGH COUNCILNew | Other | 1 | £1m | 0.8% | 2025-02-27 |
| Wyre CouncilNew | Other | 1 | £1m | 0.7% | 2024-12-04 |
| Blackburn With Darwen Borough CouncilNew | Other | 1 | £981k | 0.7% | 2024-11-19 |
| Test Valley Borough CouncilNew | Other | 1 | £960k | 0.7% | 2024-06-19 |
| Fenland District CouncilNew | Other | 2 | £848k | 0.6% | 2025-01-21 |
| North West Leicestershire District CouncilNew | Other | 1 | £835k | 0.6% | 2025-05-15 |
| Colchester City Council | Other | 2 | £750k | 0.5% | 2025-01-10 |
| Crawley Borough CouncilNew | Other | 1 | £654k | 0.5% | 2025-03-24 |
| Hertsmere Borough Council | Other | 1 | £626k | 0.4% | 2024-05-14 |
| Blackpool CouncilNew | Other | 1 | £624k | 0.4% | 2025-07-09 |
| Fylde Borough Council | Other | 2 | £617k | 0.4% | 2025-08-22 |
| East Cambridgeshire District CouncilNew | Other | 1 | £499k | 0.3% | 2024-12-19 |
| Newcastle-under-Lyme Borough Council | Other | 1 | £494k | 0.3% | 2019-11-20 |
| Bristol Waste Company | Other | 1 | £489k | 0.3% | 2019-06-12 |
| Leeds City Council | Other | 3 | £485k | 0.3% | 2019-04-17 |
| East Riding of Yorkshire | Other | 1 | £232k | 0.2% | 2020-09-22 |
| Brighton and Hove City Council | Other | 1 | £172k | 0.1% | 2022-04-07 |
| London Borough Of Islington | Other | 1 | £161k | 0.1% | 2018-12-07 |
| Bournemouth Christchurch and Poole CouncilNew | Other | 1 | £136k | 0.1% | 2025-10-17 |
| TAMESIDE METROPOLITAN BOROUGH COUNCILNew | Other | 1 | £131k | 0.1% | 2025-08-06 |
| Conwy County Borough CouncilNew | Other | 1 | £130k | 0.1% | 2025-12-09 |
| London Borough of Barking and Dagenham | Other | 1 | £29k | 0.0% | 2019-07-26 |
| Breckland District CouncilNew | Other | 1 | £0k | 0.0% | 2025-01-14 |
| Gedling Borough Council | Other | 1 | £0k | 0.0% | |
| East Ayrshire Council | Other | 3 | £0k | 0.0% | |