Below is a directory of architecturally exposed structural steel framing manufacturers (MF 05 12 13) with links to get more information about each company.
| AEP Span | Busch Inds., Inc. |
| Chicago Architectural Metals, Inc. | DUROSE Manufacturing Limited |
| Empire Iron Works Ltd. | InKan Ltd. |
| Novum Structures LLC | Skyline Steel |
| Twin City Wire-MFI |
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