From the Wikipedia category list [1]
- Bath Record Office
- Bedfordshire and Luton Archives and Records Service
- Berkshire Record Office
- Bristol Record Office
- Centre for Buckinghamshire Studies
- Cambridgeshire Archives and Local Studies
- Cheshire Record Office
- Cornwall Record Office
- County record office
- Cumbria Archive Service
- Derbyshire Record Office
- Devon Record Offices
- Doncaster Archives
- Dorset History Centre
- Dudley Archives and Local History
- Durham County Record Office
- East Riding of Yorkshire Archive Service
- Essex Record Office
- Gloucestershire Archives
- Greater Manchester County Record Office
- Centre for Kentish Studies
- Hampshire Archives and Local Studies
- Herefordshire Archive and Records Centre
- Hertfordshire Archives and Local Studies
- The Keep, Brighton
- Centre for Kentish Studies
- Kent History and Library Centre
- Lancashire Record Office
- Lincolnshire Archives
- London Metropolitan Archives
- Medway Archives
- Norfolk Record Office
- North Yorkshire County Record Office
- Northamptonshire Record Office
- Northumberland Archives
- Nottinghamshire Archives
- Oldham Local Studies and Archives
- Oxfordshire History Centre
- Rotherham Archives and Local Studies Service
- Sheffield Archives
- Shropshire Archives
- Somerset Archives and Local Studies
- South West Heritage Trust
- Southampton Archives
- Staffordshire Record Office
- Suffolk Record Office
- Surrey History Centre
- Teesside Archives
- Tyne and Wear Archives Service
- Warwickshire County Record Office
- West Sussex Record Office
- West Yorkshire Joint Services
- Wiltshire and Swindon History Centre
- Worcestershire Record Office