Thomas Iron Company was created in 1854.
Thomas Iron Company ended in 1942.
Iron Steamboat Company was created in 1881.
Cambria Iron Company was created in 1852.
Woodward Iron Company was created in 1881.
Consett Iron Company was created in 1864.
Knoxville Iron Company was created in 1868.
Oregon Iron Company was created in 1865.
Thomas Organ Company was created in 1875.
Thomas Motor Company was created in 1902.
Iron Grip Barbell Company was created in 1993.
Wrought Iron Bridge Company was created in 1864.
South Mountain Iron Company was created in 1865.