| Business Name | Address | |
| Nor'West Electric-Prosser | 401 7th St Prosser, WA 99350 |
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| Intrepid Electric | 105701 W Old Inland Empire Hwy Prosser, WA 99350 |
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| Camp's Electric Inc | 602 S Griffin Rd Prosser, WA 99350 |
|
| E Lectric Svc Corp | 505 W Sunrise Pr NW Benton City, WA 99320 |
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| Stegeman Electric | 125 W 2nd St Grandview, WA 98930 |
|