| Business Name | Address | |
| Meyer Mechanical Contracting | 204 2nd Ave NE Dyersville, IA 52040 |
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| Pfeiler Electric | 216 3rd Ave SE Dyersville, IA 52040 |
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| Borgerding Electric | 671 Highland Ct Holy Cross, IA 52053 |
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| Dave Wilson Electric | 313 Manchester Ave Earlville, IA 52041 |
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| Soens Electric Heating & Air | PO Box 127 Delhi, IA 52223 |
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