| Business | Phone |
| Aguilar Welding 330 E State St, Ontario 91761 | (909) 517-1774 |
| Aguilar Welding 4747 W State St # D, Ontario 91762 | (909) 517-1774 |
| Atlantic Welding Works 207 W State St, Ontario 91762 | (909) 984-2660 |
| Burgess Fabrications 1139 E State St, Ontario 91761 | (909) 983-6146 |
| Certified Welding 780 E Francis St # M, Ontario 91761 | (909) 947-7812 |
| J R 's Welding 1221 N Vineyard Ave # 87, Ontario 91764 | (909) 395-9149 |
| Gene's Custom Welding 1518 E Francis St, Ontario 91761 | (909) 923-1882 |
| Precision Welding 550 W California St, Ontario 91762 | (909) 986-9605 |
| Rubio's Ornamental 10749 Rose Ave, Ontario 91762 | (909) 464-8166 |
| Santana's Iron Work 560 W Emporia St, Ontario 91762 | (909) 984-8077 |
| Super Mario's Welding 410 S Bon View Ave, Ontario 91761 | (909) 984-4943 |