- Nail Salons, Fredericksburg
- National Government, Fredericksburg
- Natural Stone, Fredericksburg - Suppliers & Wholesalers
- Naturopathic Doctors, Fredericksburg - Naturopathic Medicine Physicians
- Naturopathic Practitioners, Fredericksburg
- Needlework & Needlework Supplies & Materials, Fredericksburg
- Negligence Attorneys & Lawyers, Fredericksburg
- Negligence Attorneys & Lawyers, Fredericksburg
- Negligence Lawyers & Attorneys, Fredericksburg
- Nephrologists, Fredericksburg - Kidney Doctors, Physicians & Surgeons (Nephrology)
- Network Communications, Fredericksburg
- Neurologists, Fredericksburg - Neurology Doctors, Physicians & Surgeons
- News Service, Fredericksburg - News Syndicates
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- Newspaper Manufacturers, Fredericksburg
- Non-Denominational Churches, Fredericksburg
- Noncommercial Social Research Organization, Fredericksburg
- Nonresidential Building Operators, Fredericksburg
- North American Restaurants, Fredericksburg
- Notary Public, Fredericksburg
- Nurse Practitioners, Fredericksburg
- Nurseries & Garden Centers, Fredericksburg
- Nurseries - Plants & Trees, Fredericksburg - Greenhouses
- Nurses, Fredericksburg
- Nursing & Life Care Homes, Fredericksburg
- Nursing Homes, Fredericksburg - Skilled Nursing Facility - Personal Care Centers
- Nutritionists & Nutrition Consultants, Fredericksburg - Nutrition Centers
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