| YPONew | Other | 6 | £33m | 35.4% | 2025-03-20 |
| The Association of North East Councils LimitedNew | Other | 2 | £16m | 16.9% | 2025-02-03 |
| Birmingham City CouncilNew | Other | 1 | £9m | 9.4% | 2024-11-20 |
| North Yorkshire County Council | Other | 7 | £5m | 5.1% | 2026-04-30 |
| Llywodraeth Cymru / Welsh GovernmentNew | Other | 4 | £4m | 3.7% | 2025-10-27 |
| Colchester City CouncilNew | Other | 2 | £3m | 2.7% | 2026-04-17 |
| Cumberland CouncilNew | Other | 1 | £3m | 2.7% | 2025-04-22 |
| DERBY CITY COUNCIL | Other | 7 | £2m | 2.4% | 2024-02-27 |
| North Northamptonshire CouncilNew | Other | 3 | £2m | 2.3% | 2026-05-13 |
| East Suffolk CouncilNew | Other | 1 | £2m | 1.8% | 2025-05-01 |
| City of Bradford Metropolitan District CouncilNew | Other | 1 | £1m | 1.5% | 2026-01-30 |
| Manchester City Council | Other | 3 | £1m | 1.5% | 2024-04-23 |
| Rotherham Metropolitan Borough Council | Other | 1 | £1m | 1.3% | 2023-08-16 |
| CHESHIRE EAST COUNCILNew | Other | 2 | £1m | 1.2% | 2026-03-04 |
| Wokingham Borough Council | Other | 2 | £1m | 1.1% | 2023-10-23 |
| Nottinghamshire County CouncilNew | Other | 2 | £1m | 1.1% | 2025-02-28 |
| Lewes District CouncilNew | Other | 1 | £1m | 1.1% | 2026-03-24 |
| Barnsley Metropolitan Borough Council | Other | 1 | £914k | 1.0% | 2023-08-01 |
| Bournemouth Christchurch and Poole CouncilNew | Other | 3 | £760k | 0.8% | 2025-08-21 |
| North Tyneside Borough CouncilNew | Other | 2 | £728k | 0.8% | 2025-08-12 |
| Horsham District CouncilNew | Other | 1 | £681k | 0.7% | 2024-10-01 |
| Stockton Borough CouncilNew | Other | 1 | £680k | 0.7% | 2024-11-27 |
| Basingstoke and Deane Borough CouncilNew | Other | 1 | £526k | 0.6% | 2024-12-17 |
| Wolverhampton City CouncilNew | Other | 1 | £520k | 0.6% | 2025-08-01 |
| ANSA ENVIRONMENTAL SERVICES LIMITED | Other | 1 | £360k | 0.4% | 2024-01-31 |
| Wyre CouncilNew | Other | 1 | £342k | 0.4% | 2024-12-09 |
| WAKEFIELD COUNCIL | Other | 2 | £323k | 0.3% | 2025-04-28 |
| South Norfolk CouncilNew | Other | 1 | £308k | 0.3% | 2025-05-01 |
| Westmorland and Furness CouncilNew | Other | 4 | £305k | 0.3% | 2025-07-23 |
| Braintree District CouncilNew | Other | 2 | £279k | 0.3% | 2026-01-09 |
| West Lancashire Borough CouncilNew | Other | 1 | £275k | 0.3% | 2026-02-02 |
| Broxtowe Borough CouncilNew | Other | 1 | £250k | 0.3% | 2024-07-19 |
| Derbyshire Dales District Council | Other | 1 | £250k | 0.3% | 2024-03-12 |
| West Lindsey District Council | Other | 1 | £242k | 0.3% | 2024-03-20 |
| Crawley Borough CouncilNew | Other | 1 | £181k | 0.2% | 2025-05-08 |
| Nottingham City CouncilNew | Other | 3 | £112k | 0.1% | 2024-06-27 |
| Welland ProcurementNew | Other | 1 | £107k | 0.1% | 2025-08-14 |
| Kirklees Council | Other | 1 | £100k | 0.1% | 2023-07-20 |
| Bath and North East Somerset CouncilNew | Other | 1 | £90k | 0.1% | 2024-11-12 |
| Fylde Borough CouncilNew | Other | 1 | £80k | 0.1% | 2024-09-05 |
| Exeter City CouncilNew | Other | 1 | £64k | 0.1% | 2024-06-26 |
| Stockton on Tees Borough CouncilNew | Other | 1 | £60k | 0.1% | 2024-12-19 |
| Bromsgrove District CouncilNew | Other | 1 | £50k | 0.1% | 2025-03-12 |
| Leicestershire County Council, trading as ESPONew | Other | 10 | £0k | 0.0% | 2026-01-08 |
| Welwyn Hatfield Borough CouncilNew | Other | 5 | £0k | 0.0% | 2025-06-11 |
| Canterbury Environment Company Ltd | Other | 1 | £0k | 0.0% | |
| London Borough of Hillingdon | Other | 1 | £0k | 0.0% | |
| Darlington Borough Council | Other | 1 | £0k | 0.0% | |
| Carmarthenshire County Council | Other | 1 | £0k | 0.0% | |
| East Riding of Yorkshire Council | Other | 1 | £0k | 0.0% | |
| Southampton City Council | Other | 1 | £0k | 0.0% | |
| Hull City Council | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 2 | £0k | 0.0% | |
| London Borough of Lewisham | Other | 1 | £0k | 0.0% | |
| TAMESIDE METROPOLITAN BOROUGH COUNCIL | Other | 1 | £0k | 0.0% | |