A Annfield Plain B Billingham Birtley Bishop Auckland C Chester le Street Chilton Consett Cowpen Lane Industrial Estate Crook D Darlington Durham E Eaglescliffe F Ferryhill G Great Lumley H Hartlepool Hartside Heighington Village L Langley Moor Leeholme N Newton Aycliffe North Tees Industrial Estate P Pelton Peterlee Preston Farm Industrial Estate R Ramshaw S Seaham Sedgefield St. Helen Auckland Stanley Stockton-on-Tees T Tanfield Lea Tantobie Thornaby Thorpe Thewles Toft Hill Toronto Tursdale W Witton Le Wear Recently updated companies Most viewed companies