Langley Mill; Bailey Brook Colliery; 1828-1938; coal mine
Langley Mill; New Langley Colliery; 1859-1960; coal mine
Loscoe; Loscoe Colliery; 1837-1933; coal mine
Loscoe; Ormonde Colliery; 1908-1970; coal mine
Ripley; Butterley Company; 1790-2009; iron manufacture, engineeing, colliery and brick company
Bryan Donkin Company Ltd of Chesterfield, engineering firm