- Machine Shop & Tool Repair Service, Columbiana
- Machinery And Equipment Manufacturers, Columbiana
- Machinery, Supplies & Equipment - Business Production Related, Columbiana
- Machinery, Supplies & Equipment - Construction & Contractor Related, Columbiana
- Major Appliances, Columbiana - Household & Kitchen
- Management Consultants & Services, Columbiana
- Manufacturing, Columbiana
- Manufacturing Products, Columbiana
- Marinas & Marina Services, Columbiana
- Merchandising & Marketing Consultants, Columbiana
- Metal Electroforming, Columbiana
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- Metal Plating & Polishing, Columbiana
- Methodist Church, Columbiana
- Mini & Self Storage, Columbiana
- Miscellaneous Government, Columbiana
- Miscellaneous Manufacturing, Columbiana
- Miscellaneous Personal Services, Columbiana
- Motor Vehicle, Columbiana
- Motor Vehicle Rental & Leasing, Columbiana
- Motorcycle Parts, Accessories & Dealers, Columbiana
- Moving Truck Rental , Columbiana
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