| NAICS Code | NAICS Desc | Sic Code | Sic Desc |
| 238190 | Other Foundation, Structure, and Building Exterior Contractors | 1791 | Structural Steel Erection (curtain wall installation and metal furring installation) |
| 238190 | Other Foundation, Structure, and Building Exterior Contractors | 1799 | Special Trade Contractors, NEC (forming contractors and ornamental metal work contractors) |