| Business Name | Address | |
| Wibben Locksmith | 1719 Pleasant Ave St Charles, IL 60174 |
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| Valley Lock Co | 202 S 2nd St St Charles, IL 60174 |
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| A A Absolute Lock & Security | 5701 E Andover Dr Hanover Park, IL 60133 |
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| Schaumburg Lock & Key | 1325 Santa Anita Dr Hanover Park, IL 60133 |
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| Locksmith 24 Hours Inc | Hanover Park, IL 60133 | |