Inland Steel Company was created in 1893.
Pressed Steel Company was created in 1926.
Lackawanna Steel Company was created in 1840.
Mittal Steel Company was created in 1976.
Mobarakeh Steel Company was created in 1993.
Angang Steel Company was created in 1997.
Steel Company of Wales was created in 1947.
Commonwealth Steel Company was created in 1901.
Ralston Steel Car Company was created in 1905.
All-Steel Equipment Company was created in 1912.
Appleby-Frodingham Steel Company was created in 1912.
Eberhart Steel Products Company was created in 1918.
Standard Steel Casting Company was created in 1883.