| Flintshire County Council | Wales | 99 |
| Pembrokeshire County Council | Wales | 84 |
| Tower Hamlets London Borough Council | London | 41 |
| Central Bedfordshire Council | East of England | 41 |
| Bradford Metropolitan District Council | Yorkshire and the Humber | 32 |
| Wrexham County Borough Council | Wales | 32 |
| Braintree District Council | East of England | 31 |
| City of Wolverhampton Council | West Midlands | 26 |
| Rhondda Cynon Taf County Borough Council | Wales | 24 |
| Woking Borough Council | South East | 19 |
| Welwyn Hatfield Borough Council | East of England | 18 |
| Teignbridge District Council | South West | 18 |
| Solihull Metropolitan Borough Council | West Midlands | 15 |
| Slough Borough Council | South East | 15 |
| Stockport Metropolitan Borough Council | North West | 13 |
| Maidstone Borough Council | South East | 13 |
| North Ayrshire Council | Scotland | 13 |
| Powys County Council | Wales | 13 |
| North Hertfordshire District Council | East of England | 12 |
| Doncaster Metropolitan Borough Council | Yorkshire and the Humber | 12 |
| Buckinghamshire Council | South East | 12 |
| Harrow London Borough Council | London | 12 |
| Colchester City Council | East of England | 12 |
| Camden London Borough Council | London | 11 |
| Bracknell Forest Council | South East | 11 |
| Norwich City Council | East of England | 11 |
| Islington London Borough Council | London | 11 |
| Sandwell Metropolitan Borough Council | West Midlands | 11 |
| Hillingdon London Borough Council | London | 10 |
| Harborough District Council | East Midlands | 10 |
| North Devon District Council | South West | 10 |
| Wirral Metropolitan Borough Council | North West | 10 |
| Cardiff Council | Wales | 9 |
| Glasgow City Council | Scotland | 9 |
| Edinburgh City Council | Scotland | 9 |
| Vale of Glamorgan Council | Wales | 9 |
| Suffolk County Council | East of England | 9 |
| Newcastle-under-Lyme Borough Council | West Midlands | 9 |
| Castle Point Borough Council | East of England | 8 |
| Malvern Hills District Council | West Midlands | 8 |
| Derbyshire Dales District Council | East Midlands | 8 |
| Birmingham City Council | West Midlands | 8 |
| Conwy County Borough Council | Wales | 8 |
| Thurrock Council | East of England | 8 |
| West Sussex County Council | South East | 8 |
| Cherwell District Council | South East | 8 |
| Midlothian Council | Scotland | 8 |
| Nottingham City Council | East Midlands | 7 |
| North East Combined Authority | North East | 7 |
| South Lanarkshire Council | Scotland | 7 |