| Business Name | Address | |
| Beacon Enterprises | 7334 Cliff Pine Dr Gaithersburg, MD 20879 |
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| Olney Electric Co | 7605 Airpark Rd # A Gaithersburg, MD 20879 |
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| Lighting Services & Supplies | 18729 Mooney Dr Gaithersburg, MD 20879 |
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| Electrical Systems & Solutions | 7879 Cessna Ave Gaithersburg, MD 20879 |
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| Singleton Electric Co | 7860 Cessna Ave Gaithersburg, MD 20879 |
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