- Northwest Oil Express
- Northwest Pediatrics
- Northwest Real Estate
- Northwest Savings Bank
- Northwest Staffing Resources
- Northwest Title Loans
- Northwestern Bank
- Northwestern Mutual Financial
- Northwestern Mutual Life
- Northwestern Mutual Life Insurance CO of Milwaukee
- Northwestern Mutual Life Insurance Company
- Northwoods Apartments
- Nortrax Equipment
- Nortrax South
- Norwalk the Furniture Idea
- Norway Savings Bank
- Norwest Financial
- Norwest Mortgage
- Nostalgia
- Not Just Cellular
- Notary Public
- Noteworthy
- Nothing But Silver
- Notifier
- Nottingham Apartments
- Nova
- Nova Health Care Centers
- Nova Home Loans
- Novacare
- Novastar
- Novus
- Novus Auto Care Center
- Novus Auto Glass
- Novus Auto Glass Repair Replacement
- Novus Windshield Repair
- Now & Then
- NPI Wireless
- nsolidated Grain & Barge
- N'Style