Carnfield Colliery; ?-c1870; coal mine
Clay Cross; Clay Cross Company; 1837-2000; coal, iron and limestone company founded by George Stephenson.
Codnor; Brands Colliery; fl 1874-1906; coal mine
Codnor; Britain Colliery; 1827-1946; coal mine
Miller-Mundy; family; Shipley Hall, Heanor; colliery owners
Newhall; Bretby Colliery; 1878-1962; coal mine
Pinxton; Brookhill Colliery; 1908-1968; coal mine
Ripley; Butterley Company; 1790-2009; iron manufacture, engineeing, colliery and brick company
Shipley; Coppice Colliery; 1875-1966; coal mine
Staveley; Staveley Coal and Iron Company Limited; 1864-1948; iron, coal and chemicals company
Temple Normanton; Bonds Main Colliery; 1895-1953; coal mine
Strutt family of Belper