- Machine Shop & Tool Repair Service, Duvall
- Machinery, Supplies & Equipment - Business Production Related, Duvall
- Machinery, Supplies & Equipment - Business Supplies Related, Duvall
- Mailing, Delivery & Courier Service, Duvall
- Management Consultants & Services, Duvall
- Manicurists & Pedicurists, Duvall
- Manufacturing, Duvall
- Manufacturing Products, Duvall
- Marine Electronic Equipment, Duvall
- Marine Electronics, Duvall
- Marine Hardware, Duvall
- Marine Products And Services, Duvall
- Marine Supplies & Equipment, Duvall - Boat Supplies
- Marriage & Family Counselors, Duvall
- Material Handling & Heavy Machinery & Equipment, Duvall
- Meat Market, Wholesale & Products, Duvall
|
- Mediterranean Restaurants, Duvall
- Mental Health Specialists, Duvall - Psychologist, Psychiatrist, Psychotherapist, etc
- Metal Repair Service & Blacksmith, Duvall - Iron Works
- Mill Supplies & Equipment, Duvall - Milling Machines
- Mini & Self Storage, Duvall
- Miscellaneous Household Item Repair, Duvall
- Miscellaneous Business Services, Duvall
- Miscellaneous Government, Duvall
- Miscellaneous Personal Services, Duvall
- Miscellaneous Professional, Duvall
- Mortgage Bankers & Correspondents, Duvall
- Mortgage Contracts & Services, Duvall
- Motor Vehicle, Duvall
- Music, Duvall
- Music Lessons, Duvall
- Music Lessons - Vocal, Duvall
|
