| Business Name | Address | |
| Wilson Electric & Plumbing | 2779 San Juan Valley Rd Friday Harbor, WA 98250 |
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| Inter-Island Electric | 849 Spring St # D Friday Harbor, WA 98250 |
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| Friday Harbor Electric | 150 Nichols St Friday Harbor, WA 98250 |
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| Guard Electric Inc | 818 Mullis St # 5 Friday Harbor, WA 98250 |
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| Integrated Construction Tech | PO Box 1085 Friday Harbor, WA 98250 |
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