- Machine Shop & Tool Repair Service, Blacksburg
- Machinery, Supplies & Equipment - Business Supplies Related, Blacksburg
- Mail Delivery Service, Blacksburg
- Management Consultants & Services, Blacksburg
- Manufactured & Mobile Home Movers & Transporting, Blacksburg
- Manufacturing, Blacksburg
- Manufacturing Products, Blacksburg
- Masonry Materials & Supplies, Blacksburg
- Material Handling Equipment, Blacksburg - Conveyor Belt, Pallet Jack, Forklift, etc
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- Methodist Church, Blacksburg
- Miscellaneous Government, Blacksburg
- Miscellaneous Personal Services, Blacksburg
- Monuments, Tombstones, Markers & Memorials, Blacksburg
- Mortgage Bankers & Correspondents, Blacksburg
- Motor Vehicle, Blacksburg
- Motor Vehicle Rental & Leasing, Blacksburg
- Moving Truck Rental , Blacksburg
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