| Business Name | Address | |
| Electro Serve | Burien, WA 98148 |
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| Modern Electric | 3734 SW 107th St Seattle, WA 98146 |
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| Watts Electric Svc Inc | 9050 Delridge Way SW Seattle, WA 98106 |
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| Utilities Service Co Inc | 12608 E Marginal Way S Tukwila, WA 98168 |
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| D W Close Co | 4304 S 131st St Tukwila, WA 98168 |
|