NAIS (Panasonic Electric Works Corporation of America)
http://www.pewa.panasonic.com/
Relay, Photo MOS, Sensors, Switches, Connectors, Vision, PLS, GPS

National Hybrid
http://www.nationalhybrid.com
transceivers, power controller chips

National Semiconductor
http://www.national.com
http://www.nsc.com
http://www-ru.national.com/design/ - russian server
microcontrollers, amplifiers, comparators, regulators, references, serial EEPROM, Flash, standard logic, diodes, transistors, networking chips, FIFO, SRAM, data converters, etc...

NCR Microelectronics
see Symbios Logic

NEC
http://www.ic.nec.co.jp/index_e.html
http://www.nec.com
http://www.necel.com
microprocessors, microcontrollers, DRAM, SRAM, Flash, transistors, diodes, amplifiers, comparators, audio chips, regulators, data converters, video chips, mass storage chips, etc...

NeoMagic
http://www.neomagic.com
DRAM, video chips

NeoParadigm Labs
http://www.neoparadigm.com
panel control chips, video phone chips, networking chips (ethernet)

NetChip
http://www.netchip.com
USB controller chips

NetLogic Microsystems
http://www.netlogicmicro.com
CAM memories

Newport Components
http://www.newport-comps.com
DC/DC converters

Nexcom Technologies
http://www.nexcomtech.com (link deactivated?)
Flash memories

NexFlash Technologies
http://www.nexflash.com
Flash

NexGen
see Advanced Micro Devices

Next Wave Technology
http://www.nextwavetech.com
JPEG codecs

NIC Components
http://www.niccomp.com
diodes

Nihon Inter Electronics
http://www.niec.co.jp
diodes, thyristors, transistors (MOSFET)

Nippon Precision Circuits
http://www.npcproducts.com
PLL chips, clock chips, data converters, filter chips, voice chips, audio chips, DTMF chips, etc..

Nippon Pulse Motor
http://pulsemotor.com/index-eg.html
stepper motor driver chips

Nippon Steel Semiconductor
http://www.npnx.co.jp
DRAM

NJR
http://www.njr.com
op amps, voltage regulators, LCD drivers, SAW filters, RF chips

NKK Micro Devices
http://www.nkk.co.jp/LSI
SRAM, microprocessors, PCI chips

Novacom Technologies
http://www.novacom.com
networking chips

Novalog
http://www.novalog.com
transceiver chips

NTE Electronics
http://www.nteinc.com
transistors, diodes, rectifiers

Number Nine Visual Technology
http://www.nine.com
video chips

NVidia
http://www.nvidia.com
multimedia chips