- Machine Shop, Burlington
- Machine Shop & Tool Repair Service, Burlington
- Machinery, Supplies & Equipment - Business Production Related, Burlington
- Machinery, Supplies & Equipment - Business Supplies Related, Burlington
- Machinery, Supplies & Equipment - Construction & Contractor Related, Burlington
- Maintenance, Cleaning & Sanitation, Burlington
- Management Consultants & Services, Burlington
- Manicurists & Pedicurists, Burlington
- Manufacturing, Burlington
- Manufacturing Products, Burlington
- Marriage & Family Counselors, Burlington
- Martial Arts & Self Defense Schools, Burlington
- Masonry Materials & Supplies, Burlington
- Medical & Dental Management, Burlington
- Medical Management & Business Administration Service, Burlington
- Medical Supplies & Equipment, Burlington
- Membership Sports & Recreation Clubs, Burlington
- Men's & Boys Clothing & Accessories Stores, Burlington
- Mens & Boys Jeans & Western Wear Stores, Burlington
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- Mental Health Specialists, Burlington - Psychologist, Psychiatrist, Psychotherapist, etc
- Mental Retardation & Developmentally Disabled Services, Burlington
- Merchandise Sales Events, Burlington
- Metal Plating & Polishing, Burlington
- Methodist Church, Burlington
- Mexican Restaurants, Burlington
- Mildew Removal & Control, Burlington - Mold Removal
- Miscellaneous Household Item Repair, Burlington
- Miscellaneous Agriculture, Burlington
- Miscellaneous Government, Burlington
- Mortgage Bankers & Correspondents, Burlington
- Motor Vehicle, Burlington
- Motor Vehicle Rental & Leasing, Burlington
- Moving Supplies & Equipment Rental, Burlington
- Moving Truck Rental , Burlington
- Mulch, Peat & Moss Products, Burlington
- Museums, Burlington
- Music, Burlington
- Musical Instruments & Equipment Stores, Burlington
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