B Barnard Castle Birtley Bishop Auckland C Chester le Street Consett Crook D Darlington Durham E Eastgate F Ferryhill H Hartlepool L Langley Moor M Middleton-in-teesdale O Old Eldon P Peterlee Preston Farm Industrial Estate S Sedgefield Shildon Shotton Colliery South Church Enterprise Park South West Industrial Estate Spennymoor St. Helen Auckland Stanley Stockton-on-Tees T Trimdon Trimdon Station W Wolsingham Recently updated companies Most viewed companies