| Business Name | Address | |
| Roger & Son Locksmith Inc | 9200 Wicker Ave St John, IN 46373 |
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| Highland Lock & Key Inc | 2950 45th St Highland, IN 46322 |
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| Munster Locksmith | 7926 Hohman Ave Munster, IN 46321 |
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| Perfect Lock & Key Co | 5252 Washington St Merrillville, IN 46410 |
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| Doe'S Unlimited | 5284 Broadway # 10 Merrillville, IN 46410 |
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