| Business Name | Address | |
| R & R Electric & General Contr | 2452 N Campus Ave Upland, CA 91784 |
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| Comfort & Hays | 1630 Quince Ave Upland, CA 91784 |
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| Romero Electric | 10795 Deer Canyon Dr Alta Loma, CA 91737 |
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| J C Electrical | 10826 Carriage Dr Alta Loma, CA 91737 |
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| Thompson Electric | 9044 Appaloosa Ct Alta Loma, CA 91737 |
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