 The commissioners in each region are responsible for contracting with a suitable organisation to provide ambulance services within their geographical territory.The primary provider for each area is currently held by a public NHS body, of which there are 11 in England, and 1 each in the other three countries.In England there are now ten NHS ambulance trusts, as well as an ambulance service on the Isle of Wight, run directly by Isle of Wight NHS Trust, with boundaries generally following those of the former regional government offices.