- Nail Salons, Pasadena
- Nanny Services, Pasadena
- National Government, Pasadena
- National Military, Pasadena
- National Security, Pasadena
- Natural & Holistic Products, Pasadena
- Natural Resource, Pasadena
- Nepalese Restaurants, Pasadena
- Nephrologists, Pasadena - Kidney Doctors, Physicians & Surgeons (Nephrology)
- Network Communications, Pasadena
- Network Designers, Pasadena - Computer Networking Design & Systems
- Neurologists, Pasadena - Neurology Doctors, Physicians & Surgeons
- New Thought Church, Pasadena
- News Service, Pasadena - News Syndicates
- Newspaper Manufacturers, Pasadena
- Night Clubs, Pasadena - Nightclub & Night Life
- Non Durable Goods & Products, Pasadena
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- Non-Denominational Churches, Pasadena
- Noncommercial Research Organizations, Pasadena
- Noncommercial Social Research Organization, Pasadena
- Nonresidential Building Operators, Pasadena
- Nonresidential Painting Contractors, Pasadena - Painters
- North American Restaurants, Pasadena
- Notary Public, Pasadena
- Novelty, Souvenir & Gift Shops, Pasadena
- Nurseries & Garden Centers, Pasadena
- Nurseries Wholesale & Growers, Pasadena
- Nurses, Pasadena
- Nurses Registered, Pasadena
- Nursing & Life Care Homes, Pasadena
- Nursing Homes, Pasadena - Skilled Nursing Facility - Personal Care Centers
- Nutrition Centers, Pasadena - Nutrition Specialists
- Nutritionists & Nutrition Consultants, Pasadena - Nutrition Centers
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