Knoxville Iron Company was created in 1868.
Knoxville Opera Company was created in 1978.
Iron Steamboat Company was created in 1881.
Thomas Iron Company was created in 1854.
Consett Iron Company was created in 1864.
Woodward Iron Company was created in 1881.
Oregon Iron Company was created in 1865.
Cambria Iron Company was created in 1852.
Lehigh Crane Iron Company was created in 1839.
Iron City Brewing Company was created in 1961.
Iron Ore Company of Canada was created in 1949.
Iron Grip Barbell Company was created in 1993.
Wrought Iron Bridge Company was created in 1864.