High Quality Content by WIKIPEDIA articles! The Tennessee Coal, Iron and Railroad Company (1852–1952), also known as TCI and the Tennessee Company, was a major American steel manufacturer with interests in coal and iron ore mining and railroad operations. Originally based entirely within Tennessee, it relocated most of its business to Alabama in the late nineteenth century. With a sizable real estate portfolio, the company owned several Birmingham satellite towns, including Ensley, Fairfield, Docena, Edgewater and Bayview.