| Business Name | Address | |
| Harker Electric Inc | 69951 S Centerville Rd Sturgis, MI 49091 |
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| Independence Electric Inc | 33649 Wattles Rd Colon, MI 49040 |
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| R B Hartman Electric | 59595 S Burr Oak Rd Colon, MI 49040 |
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| Windcrest Electric & Heating | 65164 Youngs Prairie Rd Constantine, MI 49042 |
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| Park Electric Controls Inc | 16866 Roys Rd Constantine, MI 49042 |
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