| Business Name | Address | |
| Hpi Security | Po Box 231 Port Sanilac, MI 48469 |
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| Weidman'S Lock & Key Svc | 3473 Main St Marlette, MI 48453 |
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| Noble Locksmith Svc | 2670 Grace Rd Fort Gratiot, MI 48059 |
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| Tim'S Locksmith Svc | 3515 Connie Ln Fort Gratiot, MI 48059 |
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| K & C Locksmithing | Po Box 104 Deford, MI 48729 |
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