| Business | Phone |
| A J Sackett & Sons Co 1701 S Highland Ave, Baltimore 21224 | (410) 276-4466 |
| National Steel Products Inc 5225 Fairlawn Ave, Baltimore 21215 | (410) 466-8900 |
| Dale Industries Inc 4601 North Point Blvd, Baltimore 21219 | (410) 477-4000 |
| Gerdau Ameristeel 6900 Quad Ave, Baltimore 21237 | (410) 288-5500 |