| Business Name | Address | |
| Bird Electric | 616 Cornwall Ave Waterloo, IA 50702 |
 |
| Paulson Electric Co | 1915 Jefferson St Waterloo, IA 50702 |
|
| Black Hawk Electrical Co | 1507 Commercial St Waterloo, IA 50702 |
|
| W & J Electric Svc | 1502 Jefferson St Waterloo, IA 50702 |
|
| Tippery Mechanical Contractors | 2617 Orchard St Waterloo, IA 50702 |
|