- Machine Shop & Tool Repair Service, Wilmington
- Machinery, Supplies & Equipment - Business Production Related, Wilmington
- Management Consultants & Services, Wilmington
- Manicurists & Pedicurists, Wilmington
- Manufacturing, Wilmington
- Marinas & Marina Services, Wilmington
- Marriage & Family Counselors, Wilmington
- Masonry Contractors, Wilmington - Stone Mason, Brick Mason - Install & Repair
- Meat Market, Wholesale & Products, Wilmington
- Membership Sports & Recreation Clubs, Wilmington
- Mental Health Specialists, Wilmington - Psychologist, Psychiatrist, Psychotherapist, etc
- Methodist Church, Wilmington
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- Miscellaneous Household Item Repair, Wilmington
- Miscellaneous Government, Wilmington
- Miscellaneous Personal Services, Wilmington
- Miscellaneous Professional, Wilmington
- Mortgages & Loans, Wilmington
- Motor Vehicle, Wilmington
- Motor Vehicle Rental & Leasing, Wilmington
- Motorcycle Parts, Accessories & Dealers, Wilmington
- Movie Theaters, Wilmington
- Moving Supplies & Equipment Rental, Wilmington
- Moving Truck Rental , Wilmington
- Muffler Shop & Exhaust Systems, Wilmington
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