- Napa the Parts Store
- Napoli Pizza
- Napoli's Pizza
- Narcotics Anonymous
- NASE
- Nathan & Lewis Securities
- Nathan's
- Nathan's Famous Frankfurters
- Nation Wide Security
- National
- National 9 Inn
- National Alliance for the Mentally III
- National Association of Enrolled Agentsclfrna SCTY
- National Association of Enrolled Agents-Virginia Society
- National Audubon Society
- National Auto Glass & Mirror
- National Auto Parts
- National Auto Sales
- National Bank
- National Bank & Trust
- National Bank of Arizona
- National Bank of Commerce
- National Bushing & Parts
- National Business Furniture
- National Car Rental
- National Car Wash
- National Cargo Bureau
- National Check Cashing
- National Check Exchange
- National City - Columbus
- National City - Lexington
- National City - Springfield
- National City - Toledo
- National City Bank
- National Cleaners
- National College of Business & Technology
- National Coney Island
- National Conference for Community & Justice
- National Construction Rentals