Local Authority
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| Amber Valley Borough Council |
| Angus Council |
| Aylesbury Vale District Council |
| Barnsley Metropolitan Borough Council |
| Bath and North East Somerset Council |
| Borough of Telford & Wrekin |
| Bracknell Forest Council |
| Bridgend Borough Council |
| Brighton & Hove City Council |
| Buckinghamshire County Council |
| Bury Metropolitan Borough Council |
| Caerphilly County Borough Council |
| Calderdale Metropolitan Borough Council |
| Cambridge City Council |
| Cambridgeshire County Council |
| Canterbury City Council |
| Cardiff Council |
| Cheshire County Council |
| Chichester District Council |
| Chorley Borough Council |
| City of Bradford Metropolitan District Council |
| City of London Corporation |
| City of London Corporation (Surveyors Dept) |
| City of Salford |
| City of Wakefield MDC |
| City of York |
| Clackmannanshire Council |
| Cornwall Council |
| Coventry City Council |
| Crawley Borough Council |
| Darlington Borough Council |
| Devon County Council |
| Doncaster Metropolitan Borough Council |
| Dudley Metropolitan Borough Council |
| Dumfries and Galloway Council |
| Durham County Council |
| East Grinstead Town Council |
| East Riding of Yorkshire Council |
| East Sussex County Council |
| Eastern Shires Purchasing (ESPO) |
| Essex County Council |
| Falkirk Council |
| Fife Council |
| Flintshire County Council |
| Gateshead Council |
| Gloucestershire County Council |
| Gravesham Borough Council |
| Gwynedd Council |
| Halton Borough Council |
| Hastings Borough Council |
| Hertfordshire County Council |
| Huntingdonshire District Council |
| Impact Partnership (RMBC) |
| Isle of Anglesey County Council |
| Isle of Wight Council |
| Kingston Upon Hull City Council |
| Kirklees Metropolitan Borough Council |
| Knowsley Borough Council |
| Lancashire County Council |
| Leeds City Council |
| Leicestershire County Council |
| Lincolnshire County Council |
| London Borough of Barking & Dagenham |
| London Borough of Barnet |
| London Borough of Bexley |
| London Borough of Brent |
| London Borough of Bromley |
| London Borough of Camden |
| London Borough of Croydon |
| London Borough of Ealing |
| London Borough of Enfield |
| London Borough of Greenwich |
| London Borough of Hackney |
| London Borough of Hammersmith & Fulham |
| London Borough of Haringey |
| London Borough Of Harrow |
| London Borough of Havering |
| London Borough of Hillingdon |
| London Borough of Hounslow |
| London Borough of Islington |
| London Borough of Lambeth |
| London Borough of Lewisham |
| London Borough of Merton |
| London Borough of Merton Contracts Unit |
| London Borough of Merton Facilities Management |
| London Borough of Newham |
| London Borough of Sutton |
| London Borough of Tower Hamlets |
| London Borough of Waltham Forest |
| Manchester City Council |
| Medway Council |
| Metropolitan Borough of Wirral |
| Mole Valley District Council |
| Monmouthshire County Council |
| Newcastle City Council |
| Newport City Council |
| North East Lincolnshire Council |
| North Somerset Council |
| North Tyneside Council |
| North Yorkshire County Council |
| Nottingham City Council |
| Nottinghamshire County Council |
| Perth & Kinross Council |
| Plymouth City Council |
| Portsmouth City Council |
| Powys County Council |
| Redditch Borough Council |
| Reigate and Banstead Borough Council |
| Renfrewshire Council |
| Rotherham Metropolitan Borough Council |
| Royal Borough of Kensington & Chelsea |
| Royal Borough of Kingston upon Thames |
| Ryedale District Council |
| Sandwell Metropolitan Borough Council |
| Sedgemoor District Council |
| Sefton Council |
| Selby District Council |
| Sheffield City Council |
| Shropshire Council |
| Solihull Metropolitan Borough Council |
| South Gloucestershire Council |
| South Lanarkshire Council |
| South Northamptonshire Council |
| South Somerset District Council |
| South Tyneside Council |
| Southend on Sea Borough Council |
| St Helens Council |
| Staffordshire County Council |
| Staffordshire Moorlands District Council |
| Stevenage Borough Council |
| Stockport Metropolitan Borough Council |
| Sunderland City Council |
| Surrey Heath Borough Council |
| Tameside Metropolitan Borough Council |
| Teignbridge District Council |
| The Highland Council |
| Thurrock Council |
| Torbay Council |
| Trafford Council |
| Uttlesford District Council |
| Walsall Council |
| Wandsworth Borough Council |
| Warrington Borough Council |
| Warwickshire County Council |
| Wealden District Council |
| Wearvalley District Council |
| Welwyn and Hatfield Council |
| West Dunbartonshire Council |
| West Lancashire District Council |
| West Lothian Council |
| West Oxfordshire District Council |
| West Sussex County Council |
| Westminster City Council |
| Wigan Council |
| Wokingham Borough Council |
| Wolverhampton City Council |
| Wycombe District Council |