| Business Name | Address | |
| North Shore Energy | PO Box 7146 Prospect Heights, IL 60070 |
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| Hecker & Co Inc | 250 Industrial Ln Wheeling, IL 60090 |
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| Reading Electric Inc | 1113 Valley Stream Dr Wheeling, IL 60090 |
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| All-Line Electric Co | 520 Quail Hollow Dr # 100 Wheeling, IL 60090 |
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| S & G Electric Inc | 375 N Wolf Rd Wheeling, IL 60090 |
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