- Ice Cream & Frozen Yogurt, Boyne City
- Industrial & Commercial Real Estate, Boyne City
- Industrial Contractors, Boyne City
- Industrial Equipment & Machinery, Boyne City
- Industrial Goods & Products - Hard Goods - Small, Boyne City
- Industrial Machinery Supplies & Equipment - Leasing & Rental, Boyne City
- Industrial Pumps, Boyne City - Centrifugal, Positive Displacement, Submersible, Diaphragm, Hydraulic, Water, Vacuum Pump, etc
- Industry, Boyne City
- Information Bureaus & Services, Boyne City
- Inspection & Testing Services, Boyne City
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- Insulation & Energy Conservation Materials, Boyne City
- Insulation Contractors, Boyne City - Blown-In, Spray Foam, Batt, Fiberglass, Attic Insulation Installation & Service
- Insurance Carriers, Boyne City
- Insurance Farm, Boyne City
- Interior Designers, Boyne City
- Interior Designers & Decorators, Boyne City
- International Community Of Christ Church, Boyne City
- Investment Management Services, Boyne City
- Investment Services & Advisors, Boyne City
- Irrigation Systems & Equipment, Boyne City
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