Private Ambulance Services Stockton-on-tees, Stockton - Welcome to the Stockton-on-tees Private Ambulance Services Directory listing recommended private ambulance companies in Stockton-on-tees. It lists those who offer private ambulance services in Stockton-on-tees, Stockton. Do you have a Stockton-on-tees business? If so, why not advertise it on the Stockton-on-tees Business Directory - IT'S FREE.