| Business Name | Address | |
| Tristate Electrical | 8009 Corporate Dr Nottingham, MD 21236 |
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| Elco Electric Inc | 9223 Harford Rd Parkville, MD 21234 |
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| Al Bruno General & Electrical | 8820 Fearne Ave Parkville, MD 21234 |
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| Captain Electric Inc | 7510 Harford Rd Parkville, MD 21234 |
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| High Point Electric Inc | 7006 Harford Rd Parkville, MD 21234 |
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