| Business Name | Address | |
| Rec Residential Electric Co | 23338 SE 291st St Black Diamond, WA 98010 |
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| Maple Valley Electric | 26828 Maple Valley Hwy Pmb 208 Maple Valley, WA 98038 |
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| Diamond Bay Electric Inc | PO Box 448 Maple Valley, WA 98038 |
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| Asahi Electric | 23025 SE 282nd Ct Maple Valley, WA 98038 |
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| Maximum Electric | Maple Valley, WA 98038 |
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