| Central Bedfordshire Council | East of England | 70 |
| Powys County Council | Wales | 30 |
| Flintshire County Council | Wales | 27 |
| Brent London Borough Council | London | 20 |
| Pembrokeshire County Council | Wales | 20 |
| Rhondda Cynon Taf County Borough Council | Wales | 19 |
| Bristol City Council | South West | 16 |
| Tower Hamlets London Borough Council | London | 12 |
| Vale of Glamorgan Council | Wales | 11 |
| Suffolk County Council | East of England | 10 |
| Knowsley Metropolitan Borough Council | North West | 10 |
| Wrexham County Borough Council | Wales | 8 |
| Buckinghamshire Council | South East | 5 |
| Fingal County Council | Ireland | 4 |
| Aberdeen City Council | Scotland | 4 |
| West Sussex County Council | South East | 4 |
| Stockport Metropolitan Borough Council | North West | 3 |
| Wirral Metropolitan Borough Council | North West | 3 |
| City of Wolverhampton Council | West Midlands | 3 |
| Solihull Metropolitan Borough Council | West Midlands | 2 |
| Bradford Metropolitan District Council | Yorkshire and the Humber | 2 |
| Reading Borough Council | South East | 2 |
| Broadland District Council | East of England | 1 |
| Thurrock Council | East of England | 1 |
| Tunbridge Wells Borough Council | South East | 1 |
| Bedford Borough Council | East of England | 1 |
| Northumberland County Council | North East | 1 |
| Midlothian Council | Scotland | 1 |
| Woking Borough Council | South East | 1 |
| Gwynedd Council | Wales | 1 |
| North Yorkshire Council | Yorkshire and the Humber | 1 |
| Somerset Council | South West | 1 |
| Leicester City Council | East Midlands | 1 |