Founded in 1945, JA McMahon Inc. is a certified structural steel fabricator located in Niles, Ohio. The company specializes in fabricating structural and miscellaneous steel for commercial buildings, industrial structures and bridges. It has affiliations with the American Institute of Steel Construction, American Welding Society, Central Fabricators Association, and Ohio Structural Steel and Architectural Metals Association. The firm is a recipient of the American Institute of Steel Construction (AISC) certification for conventional/complex structures and bridges. Some of its clients are M&S Steel Fabricators, Kilroy Steel, The Kreidler Construction Co. and P.J. Dick Incorporated.