- Neurosurgeon
- Non-denominational church
- News service
- Native American restaurant
- National museum
- Natural stone wholesaler
- Northern Italian restaurant
- Newspaper advertising department
- Nuclear power plant
- Neonatal physician
- Novelties wholesaler
- Numerologist
- Nuclear engineer
- Neurophysiologist
- Nanotechnology engineer
- National health foundation
- National library
- Naval base
- Nuclear power company
- Notaries association