| Business Name | Address | |
| Beach City Electric | PO Box 80577 Rcho Sta Marg, CA 92688 |
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| Hackney Electric Inc | 23286 Arroyo Vis Rcho Sta Marg, CA 92688 |
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| Pacific Coast Controls | 53 Legacy Way Rcho Sta Marg, CA 92688 |
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| J A Hoyt Electric | 22922 Avenida Empresa Rcho Sta Marg, CA 92688 |
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| Eagle Electric | 18 Romero Rcho Sta Marg, CA 92688 |
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