B Billingham Birtley Bishop Auckland Bowburn C Chester le Street Cowpen Lane Industrial Estate D Darlington Durham E Eaglescliffe Esh F Ferryhill H Hartlepool Haswell High Hesleden L Lanchester Langley Moor N Newton Aycliffe North Tees Industrial Estate North West Industrial Estate P Peterlee S Sadberge Sedgefield Stanley Stockton-on-Tees T Tanfield Lea Teesside Industrial Estate Toronto Recently updated companies Most viewed companies