| NHS Ambulance Service Directors of Clinical Care Group | All NHS ambulance service directors of clinical care (14) |
| The Joint Royal Colleges Ambulance Liaison Committee | All committee members (42) |
| The British Paramedic Association | All executive committee members (15) |
| The Association of Air Ambulance Charities | Participating air ambulance service chief executives, medical directors or senior clinical operations managers (or equivalent) (14) |
| The British Association for Immediate Care | All members of the executive council (21) |
| The Faculty of Prehospital Care of the Royal College of Surgeons of Edinburgh | All members of the faculty board (21) |
| Resuscitation Council UK | All executive committee members (15) |