| Somerset Council | South West | 69 |
| Edinburgh City Council | Scotland | 34 |
| South Gloucestershire Council | South West | 30 |
| Dumfries and Galloway Council | Scotland | 28 |
| Rotherham Metropolitan Borough Council | Yorkshire and the Humber | 26 |
| Kent County Council | South East | 19 |
| Central Bedfordshire Council | East of England | 19 |
| Lincolnshire County Council | East Midlands | 19 |
| North Somerset Council | South West | 17 |
| Fingal County Council | Ireland | 16 |
| Bristol City Council | South West | 16 |
| City of York Council | Yorkshire and the Humber | 15 |
| Cambridgeshire County Council | East of England | 14 |
| Knowsley Metropolitan Borough Council | North West | 14 |
| Gloucestershire County Council | South West | 14 |
| Cambridgeshire and Peterborough Combined Authority | East of England | 14 |
| Medway Council | South East | 13 |
| Bournemouth, Christchurch and Poole Council | South West | 12 |
| Leeds City Council | Yorkshire and the Humber | 12 |
| Wandsworth London Borough Council | London | 11 |
| Sheffield City Council | Yorkshire and the Humber | 11 |
| Birmingham City Council | West Midlands | 11 |
| Swindon Borough Council | South West | 10 |
| Tees Valley Combined Authority | North East | 10 |
| Norfolk County Council | East of England | 9 |
| Flintshire County Council | Wales | 9 |
| King's Lynn and West Norfolk Borough Council | East of England | 9 |
| Harrow London Borough Council | London | 8 |
| Wrexham County Borough Council | Wales | 8 |
| Derry City and Strabane District Council | Northern Ireland | 7 |
| East Riding of Yorkshire Council | Yorkshire and the Humber | 7 |
| Vale of Glamorgan Council | Wales | 7 |
| Chorley Borough Council | North West | 6 |
| Wokingham Borough Council | South East | 6 |
| North Yorkshire Council | Yorkshire and the Humber | 6 |
| Wigan Metropolitan Borough Council | North West | 6 |
| Reading Borough Council | South East | 5 |
| Perth and Kinross Council | Scotland | 5 |
| West Yorkshire Combined Authority | Yorkshire and the Humber | 5 |
| Northumberland County Council | North East | 5 |
| Gwynedd Council | Wales | 5 |
| Glasgow City Council | Scotland | 5 |
| Aberdeen City Council | Scotland | 5 |
| Cambridge City Council | East of England | 5 |
| Rochford District Council | East of England | 4 |
| Welwyn Hatfield Borough Council | East of England | 4 |
| Derby City Council | East Midlands | 4 |
| Stockport Metropolitan Borough Council | North West | 4 |
| Highland Council | Scotland | 4 |
| Manchester City Council | North West | 4 |