| Business Name | Address | |
| Borgerding Electric | 671 Highland Ct Holy Cross, IA 52053 |
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| Pfeiler Electric | 216 3rd Ave SE Dyersville, IA 52040 |
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| Meyer Mechanical Contracting | 204 2nd Ave NE Dyersville, IA 52040 |
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| Spiegelhalter Electric | 5555 Saratoga Rd # 1 Dubuque, IA 52002 |
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| Lewis Electric | 17026 Mountain Rdg Dubuque, IA 52002 |
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