- Machine Shop, Fairfield
- Machinery, Supplies & Equipment - Business Production Related, Fairfield
- Machinery, Supplies & Equipment - Business Supplies Related, Fairfield
- Machinery, Supplies & Equipment - Construction & Contractor Related, Fairfield
- Mail Delivery Service, Fairfield
- Malls & Shopping Centers, Fairfield
- Management Consultants & Services, Fairfield
- Manicurists & Pedicurists, Fairfield
- Manufactured & Mobile Home Movers & Transporting, Fairfield
- Manufacturing, Fairfield
- Manufacturing Products, Fairfield
- Marine Contractors & Designers, Fairfield
- Masonry Materials & Supplies, Fairfield
- Meat Market, Wholesale & Products, Fairfield
- Membership Sports & Recreation Clubs, Fairfield
- Men's & Boys Clothing & Accessories Stores, Fairfield
- Mens & Boys Jeans & Western Wear Stores, Fairfield
- Mental Health Clinics, Fairfield - Treatment Centers
- Mental Health Specialists, Fairfield - Psychologist, Psychiatrist, Psychotherapist, etc
- Mental Retardation & Developmentally Disabled Services, Fairfield
|
- Metal Repair Service & Blacksmith, Fairfield - Iron Works
- Methodist Church, Fairfield
- Mexican Restaurants, Fairfield
- Mini & Self Storage, Fairfield
- Mining, Fairfield
- Ministries Church, Fairfield
- Miscellaneous Business Services, Fairfield
- Miscellaneous Government, Fairfield
- Miscellaneous Personal Services, Fairfield
- Miscellaneous Professional, Fairfield
- Mission Churches, Fairfield
- Modular & Mobile Homes For Sale, Fairfield - Manufactured Homes Sale & Service
- Monuments, Tombstones, Markers & Memorials, Fairfield
- Mortgage Bankers & Correspondents, Fairfield
- Mortgages & Loans, Fairfield
- Motor Vehicle, Fairfield
- Motor Vehicle Rental & Leasing, Fairfield
- Moving Truck Rental , Fairfield
- Muffler Shop & Exhaust Systems, Fairfield
- Museums, Fairfield
|