- Non-profit organization
- Nutritionist
- Novelty store
- News service
- Non-governmental organization
- Natural goods store
- Neon sign shop
- Newspaper publisher
- Nurse practitioner
- Nut store
- Nail salon
- Nissan dealer
- Notions store
- Naturopathic practitioner
- Newspaper advertising department
- Needlework shop
- Night club
- Neurologist
- Nephrologist
- Nanotechnology engineer