Manufacturers:
- NAD Electronics
- Nagra
- Nakamichi
- Narco National Aeronautical Corporation
- Nardeux
- National Automotive Service Company
- National Radio Company
- National Radio Institute
- NEC
- Nelson-Ross Electronics Inc.
- Neutrik Cortex Instruments
- Nihon Koden
- Nikko Audio
- Nikon
- Nipro Corporation
- Nissan
- NMI Newport Medical Instruments
- Non-Linear Systems
- Norcold
- Nordmende
- Norlin Music
- Novametrix Medical Systems Inc
- Nye Vikink
