| Business Name | Address | |
| Janney Electric Co | Cockysvl Hnt Vly, MD 21065 |
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| Clinton Electric Co | 1850 York Rd # J Lutherville, MD 21093 |
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| Adam Service Co | 1802 Dulaney Valley Rd Lutherville, MD 21093 |
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| Electric Tech | 1850 York Rd Timonium, MD 21093 |
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| Pinnacle Electric Corp | 75 W Timonium Rd Timonium, MD 21093 |
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