| Business | Phone |
| L J's Welding & Fabrication 141 Center St, Waterloo 50703 | (319) 236-2844 |
| Mechanical Welding & Repairs 133 Utica St, Waterloo 50703 | (319) 232-5199 |
| Stainless Plus 3533 Cedar Terrace Dr, Waterloo 50702 | (319) 296-2319 |
| Curtis Sage Welding Svc 1818 E Cedar Wapsie Rd, Waterloo 50703 | (319) 984-6294 |
| W L Welding & Underground 4519 Wagner Rd, Waterloo 50703 | (319) 233-5552 |