| Business Name | Address | |
| Economical Electrical | PO Box 957362 Hoffman Estates, IL 60195 |
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| Hoffman Estates Electric Inc | 1270 Campbell Ln Hoffman Estates, IL 60194 |
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| Holbrook-Carey | Hoffman Estates, IL 60194 |
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| Northwest Electric Corp | 1044 Warwick Cir S Hoffman Estates, IL 60194 |
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| Tri-J Electric Inc | 650 W Berkley Ln Hoffman Estates, IL 60194 |
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