| Renfrewshire Council | Scotland | 23 |
| Dundee City Council or similar (DPEA is a Scottish government planning body) | Scotland | 22 |
| Rhondda Cynon Taf County Borough Council | Wales | 18 |
| Aberdeen City Council | Scotland | 18 |
| Flintshire County Council | Wales | 16 |
| Central Bedfordshire Council | East of England | 16 |
| Pembrokeshire County Council | Wales | 11 |
| Edinburgh City Council | Scotland | 10 |
| Highland Council | Scotland | 9 |
| Dumfries and Galloway Council | Scotland | 8 |
| Northumberland County Council | North East | 6 |
| North Lanarkshire Council | Scotland | 5 |
| Broadland District Council | East of England | 5 |
| Cambridgeshire County Council | East of England | 5 |
| Vale of Glamorgan Council | Wales | 5 |
| South Lanarkshire Council | Scotland | 4 |
| Buckinghamshire Council | South East | 4 |
| Glasgow City Council | Scotland | 4 |
| Midlothian Council | Scotland | 3 |
| Durham County Council | North East | 3 |
| Falkirk Council | Scotland | 3 |
| Newham London Borough Council | London | 3 |
| Solihull Metropolitan Borough Council | West Midlands | 3 |
| Swansea Council | Wales | 3 |
| Warwickshire County Council | West Midlands | 3 |
| Blaenau Gwent County Borough Council | Wales | 2 |
| Tower Hamlets London Borough Council | London | 2 |
| Trafford Metropolitan Borough Council | North West | 2 |
| Mid Sussex District Council | South East | 2 |
| Public Services Committee | Select | 2 |
| Wiltshire Council | South West | 2 |
| Herefordshire Council | West Midlands | 2 |
| Isle of Anglesey County Council | Wales | 2 |
| Welwyn Hatfield Borough Council | East of England | 2 |
| City of Wolverhampton Council | West Midlands | 2 |
| Denbighshire County Council | Wales | 2 |
| Fermanagh and Omagh District Council | Northern Ireland | 2 |
| Basildon Borough Council | East of England | 2 |
| Kent County Council | South East | 2 |
| West Sussex County Council | South East | 2 |
| Gloucestershire County Council | South West | 2 |
| South Ayrshire Council | Scotland | 1 |
| Southwark London Borough Council | London | 1 |
| Suffolk County Council | East of England | 1 |
| Worcester City Council | West Midlands | 1 |
| Teignbridge District Council | South West | 1 |
| Education Committee | Select | 1 |
| Armagh City, Banbridge and Craigavon Borough Council | Northern Ireland | 1 |
| Wakefield Metropolitan District Council | Yorkshire and the Humber | 1 |
| West Lothian Council | Scotland | 1 |