- Machine Shop, Huntingburg
- Machine Shop & Tool Repair Service, Huntingburg
- Machinery And Equipment Manufacturers, Huntingburg
- Machinery, Supplies & Equipment - Business Supplies Related, Huntingburg
- Machinery, Supplies & Equipment - Construction & Contractor Related, Huntingburg
- Management Consultants & Services, Huntingburg
- Manufacturing, Huntingburg
- Masonry Materials & Supplies, Huntingburg
- Mental Health Specialists, Huntingburg - Psychologist, Psychiatrist, Psychotherapist, etc
- Metal Buildings, Huntingburg - Kits, Homes, Steel Buildings, etc
- Metal Working Machinery, Huntingburg
- Methodist Church, Huntingburg
- Mexican Restaurants, Huntingburg
- Mining, Huntingburg
- Mining Contractors, Huntingburg - Mining Companies, Contractors & Brokers
- Mining Services, Huntingburg
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- Mining, Crude-Oil Production, Huntingburg - Mining Companies
- Miscellaneous Government, Huntingburg
- Miscellaneous Industry, Huntingburg
- Miscellaneous Manufacturing, Huntingburg
- Miscellaneous Personal Services, Huntingburg
- Miscellaneous Photographers, Huntingburg
- Miscellaneous Professional, Huntingburg
- Monuments, Tombstones, Markers & Memorials, Huntingburg
- Mortgage Bankers & Correspondents, Huntingburg
- Motor Vehicle, Huntingburg
- Motor Vehicle Rental & Leasing, Huntingburg
- Moving Supplies & Equipment Rental, Huntingburg
- Moving Truck Rental , Huntingburg
- Mulch, Peat & Moss Products, Huntingburg
- Music, Huntingburg
- Musical Instruments & Equipment Stores, Huntingburg
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