- Machine Shop & Tool Repair Service, Newville
- Machinery And Equipment Manufacturers, Newville
- Machinery, Supplies & Equipment - Business Supplies Related, Newville
- Machinery, Supplies & Equipment - Construction & Contractor Related, Newville
- Magicians & Hypnotist Entertainers, Newville
- Manifold Business Forms Manufacturers, Newville
- Manufacturing, Newville
- Masonry Contractors, Newville - Stone Mason, Brick Mason - Install & Repair
- Masonry Materials & Supplies, Newville
- Medical Groups & Clinics, Newville - Medical & Health Centers
- Medical Supplies & Equipment, Newville
- Membership Sports & Recreation Clubs, Newville
- Metal Repair Service & Blacksmith, Newville - Iron Works
- Methodist Church, Newville
- Mini & Self Storage, Newville
- Miscellaneous Government, Newville
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- Miscellaneous Personal Services, Newville
- Mission Churches, Newville
- Mobile Home Parks & Communities , Newville
- Modular & Mobile Homes For Sale, Newville - Manufactured Homes Sale & Service
- Monuments, Tombstones, Markers & Memorials, Newville
- Motor Vehicle, Newville
- Motor Vehicle Rental & Leasing, Newville
- Motorcycle Parts, Accessories & Dealers, Newville
- Movie Theaters, Newville
- Moving Truck Rental , Newville
- Muffler Shop & Exhaust Systems, Newville
- Mulch, Peat & Moss Products, Newville
- Music, Newville
- Musical Instruments & Equipment Stores, Newville
- Musical Instruments Repair, Sales & Service, Newville
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