| Business | Phone |
| Ace Iron Inc 31626 Hayman St, Hayward 94544 | (510) 324-3300 |
| American Steel Fabricating 1809 Sabre St, Hayward 94545 | (510) 783-4405 |
| Cordeiro's Welding Svc 19356 Meekland Ave, Hayward 94541 | (510) 276-3950 |
| Metal Masters 3862 Depot Rd, Hayward 94545 | (510) 352-1230 |
| National Metal Fabricators 2250 Davis Ct, Hayward 94545 | (510) 887-6231 |
| Glazier Ironworks 650 Sandoval Way, Hayward 94544 | (510) 471-5300 |
| Steel Guys Inc 25471 Uvas Ct, Hayward 94541 | (510) 581-0275 |
| Steel Source Construction Hayward 94541 | (510) 582-2700 |