| Business Name | Address | |
| Hyland Electric Inc | 1301 Piatt Ave Mattoon, IL 61938 |
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| Quast Electric | 900 Prairie Ave Mattoon, IL 61938 |
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| Anderson Electric | 1921 Oak Ave Mattoon, IL 61938 |
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| Commercial Electric | 720 S 17th St Mattoon, IL 61938 |
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| Showalter Electric | 5514 Prospect Ln Mattoon, IL 61938 |
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