- Machinery, Supplies & Equipment - Business Production Related, Madisonville
- Machinery, Supplies & Equipment - Business Supplies Related, Madisonville
- Machinery, Supplies & Equipment - Construction & Contractor Related, Madisonville
- Mailing, Delivery & Courier Service, Madisonville
- Major Appliances, Madisonville - Household & Kitchen
- Manicurists & Pedicurists, Madisonville
- Manufacturing, Madisonville
- Marine Supplies & Equipment, Madisonville - Boat Supplies
- Marriage & Family Counselors, Madisonville
- Martial Arts & Self Defense Schools, Madisonville
- Masonry Materials & Supplies, Madisonville
- Massage Therapists & Professional, Madisonville
- Massage Therapy, Madisonville
- Meat Market, Wholesale & Products, Madisonville
- Meat Packers, Madisonville
- Medical & Health Service Organizations, Madisonville
- Medical Supplies & Equipment, Madisonville
- Membership Sports & Recreation Clubs, Madisonville
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- Mental Health Clinics, Madisonville - Treatment Centers
- Merchandise Sales Events, Madisonville
- Methodist Church, Madisonville
- Mexican Restaurants, Madisonville
- Midwives, Madisonville
- Miscellaneous Government, Madisonville
- Miscellaneous Personal Services, Madisonville
- Miscellaneous Professional, Madisonville
- Modular & Mobile Homes For Sale, Madisonville - Manufactured Homes Sale & Service
- Monuments, Tombstones, Markers & Memorials, Madisonville
- Mortgage Bankers & Correspondents, Madisonville
- Mortgages & Loans, Madisonville
- Motor Vehicle, Madisonville
- Motor Vehicle Rental & Leasing, Madisonville
- Motorcycle Parts, Accessories & Dealers, Madisonville
- Moving Truck Rental , Madisonville
- Muffler Shop & Exhaust Systems, Madisonville
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