| Business Name | Address | |
| Security Locksmith | Po Box 1043 Waterloo, IA 50704 |
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| Polk'S Locksmith Svc | 124 E 18th St Cedar Falls, IA 50613 |
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| Polk'S Lock Svc Inc | 1504 College St Cedar Falls, IA 50613 |
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| Timmerman Glass | Po Box 3067 Evansdale, IA 50707 |
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| Locksperts | 1302 Jefferson St Waterloo, IA 50702 |
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