| Business Name | Address | |
| Gibson Electric Co Inc | 2207 Lakeside Dr Bannockburn, IL 60015 |
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| Lovering Electric | 2457 Highmoor Rd Highland Park, IL 60035 |
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| Montalto Electric | 1787 Saint Johns Ave Highland Park, IL 60035 |
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| Grevers Electric | 3250 Skokie Valley Rd Highland Park, IL 60035 |
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| Romitti Electric Corp | 565 Barberry Rd Highland Park, IL 60035 |
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