| Avon Ambulance Service |
| Beds & Herts Ambulance Service |
| Cumbria Ambulance Service |
| East Anglian Ambulance Service |
| East Midlands Ambulance Service |
| Essex Ambulance Service |
| Gloucestershire Ambulance Service |
| Hampshire Ambulance Service |
| Kent Ambulance Service |
| Lancashire Ambulance Service |
| London Ambulance Service |
| Mersey Regional Ambulance Service |
| Northern Ireland Ambulance Service |
| Royal Berkshire Ambulance Service |
| Scottish Ambulance Service |
| Surrey Ambulance Service |
| Sussex Ambulance Service |
| TENYAS |
| Welsh Ambulance Service |
| Westcountry Ambulance Service |
| West Midlands Ambulance Service |
| West Yorkshire Ambulance Service |
| Wiltshire Ambulance Service |