B Barnard Castle Belasis Hall Technology Park Billingham Birtley Bishop Auckland Blackhall Colliery Bowburn Brandon C Chester le Street Chilton Consett Coxhoe Crook D Darlington Durham E Eaglescliffe Easington Colliery F Ferryhill H Hartlepool High Leven Horden Hunwick Hurworth I Ingleby Barwick L Lanchester M Meadowfield Middleton St. George Middleton-in-teesdale Murton N Newton Aycliffe Norton P Pelton Peterlee Preston Farm Industrial Estate S Seaham Sedgefield Shildon Shotley Bridge Spennymoor Stanhope Stanley Stockton-on-Tees T Thornaby Trimdon Trimdon Station W Wheatley Hill Willington Wolsingham Wynyard Y Yarm Recently updated companies Most viewed companies