| Company | Category | Area | Address | Web | E-mail | Contact person |
| IONIA COUNTY SHERIFF | Sheriff | Michigan | 133 E ADAMS ST, IONIA, Ionia, Michigan, 48846-1627, USA |
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Dwain Dennis |
| IONIA COUNTY TREASURER | County Government-Finance & Ta | Michigan | 100 W MAIN ST, IONIA, Ionia, Michigan, 48846-1651, USA |
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Nancy Hickey |
| IONIA COUNTY WIC | Social/Human Servs | Michigan | 175 E ADAMS ST, IONIA, Ionia, Michigan, 48846-1672, USA |
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CAROL GALLAGHER |
| IONIA COUNTY-TTD FOR THE DF | County Government-General Offi | Michigan | 545 APPLE TREE DR, IONIA, Ionia, Michigan, 48846-8512, USA |
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| IONIA COUNTY-TTD FOR THE DF | Gen Government Nec | Michigan | 545 APPLE TREE DR, IONIA, Ionia, Michigan, 48846-8512, USA |
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