- Machine Shop & Tool Repair Service, Mancelona
- Machine Tools , Mancelona
- Machinery, Supplies & Equipment - Business Production Related, Mancelona
- Machinery, Supplies & Equipment - Business Supplies Related, Mancelona
- Machinery, Supplies & Equipment - Construction & Contractor Related, Mancelona
- Major Appliances, Mancelona - Household & Kitchen
- Management Consultants & Services, Mancelona
- Manufacturing, Mancelona
- Manufacturing Products, Mancelona
- Marine Products And Services, Mancelona
- Marine Repair & Service Stations, Mancelona
- Marine Supplies & Equipment Repair, Mancelona - Boat Supplies & Equipment
- Masonry Materials & Supplies, Mancelona
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- Membership Sports & Recreation Clubs, Mancelona
- Mennonite Church, Mancelona
- Metal Tanks, Mancelona
- Methodist Church, Mancelona
- Mining, Mancelona
- Miscellaneous Government, Mancelona
- Miscellaneous Personal Services, Mancelona
- Mission Churches, Mancelona
- Monuments, Tombstones, Markers & Memorials, Mancelona
- Motor Vehicle, Mancelona
- Motor Vehicle Rental & Leasing, Mancelona
- Moving Truck Rental , Mancelona
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