| Business | Phone |
| Barker Steel Co 924 Marcon Blvd, Allentown 18109 | (610) 266-9676 |
| Handwerk's Welding Shop 1384 S 5th St, Allentown 18103 | (610) 797-8662 |
| Jost Iron Works 4344 Hamilton Blvd, Allentown 18103 | (610) 395-5461 |
| Nicholas J Bouras Inc 1501 N Cedar Crest Blvd # 118, Allentown 18104 | (610) 776-2060 |
| Rarlon Iron Works 6338 Farm Bureau Rd, Allentown 18106 | (610) 395-3472 |
| Reinforcement Solutions Inc 1117 N 23rd St, Allentown 18104 | (610) 434-2299 |