I-CUBE
http://www.icube.com
networking chips

IBM Microelectronics
http://www.chips.ibm.com
microprocessors, microcontrollers, DRAM, SRAM, VRAM, palette DAC, MPEG chips, networking chips, mass storage chips

iC-Haus
http://www.ichaus.com
http://www.ichauscorp.com
encoder chips, line drivers, optoelectronics, magnetic sensors

IC Works
http://www.icworks.com
clock chips

iCompression
http://www.icompression.com
audio/video encoder chips

ICT
http://www.ictpld.com
gate arrays (PLD)

IDS Electronics
http://ids.idsesb.com.my
power transistors

IGS Technologies
http://www.igst.com
video chips

ILC Data Device
http://www.ilcddc.com
synchro/resolver converter chips, line drivers, transceivers

IMP
http://www.impweb.com
LDO Voltage Regulators, Power Management IC, USB, SCSI terminators, microprocessor supervisors, electroluminescent lamp drivers, SMPS controllers

Impala Linear
http://www.impalalinear.com
PLL/VCO chips, power supervisory chips

Improv Systems
http://www.improvsys.com
configurable processors

Infineon Technologies
http://www.infineon.com
microcontrollers, DRAM, wireless chips, networking chips, diodes, transistors, optoelectronics, motor drivers, etc...

Infinite Solutions
see ZSP

Infinite Technology
http://www.itc-usa.com
arithmetic processor

Information Storage Devices
http://www.isd.com
voice chips, analog memories

Inmos
see STMicroelectronics

InnovaCom
http://www.innovacom-mpeg2.com
MPEG chips

InteGraphics Systems
see IGS Technologies

Integrated Circuit Systems
http://www.icst.com
clock chips, audio chips, networking chips, battery charging chips

Integrated Device Technology
http://www.idt.com
SRAM, microprocessors, FIFO, clock chips, standard logic, networking chips

Integrated Electronics Technology
http://www.odyssey.net/cmossensors
CMOS imaging chips

Integrated Information Technology
see 8x8 Inc.

Integrated Logic Systems
http://www.ilsi.com
gate arrays

Integrated Micro Solutions
http://www.integratedmicro.com
video processor

Integrated Silicon Solutions
http://www.issiusa.com
SRAM, serial EPROM, EEPROM, Flash, voice chips

Integrated Technology Express
http://www.iteusa.com
PC system chips

Integrated Telecom Technology
see PMC-Sierra

Intel
http://www.intel.com/design
Flash, microprocessors, microcontrollers, networking chips, PC system chips, data controller chips, video chips

Intelligent Micro
http://www.slip.net/~slin (link deactivated?)
networking chips

Intellon
http://www.intellon.com
CEBus controller chips

InterFET
http://www.interfet.com
JFETs, diodes, voltage controlled resistors

International Microcircuits
http://www.imicorp.com
clock chips, PLLs, synthesizer chips

International Meta Systems
http://www.imes.com
microprocessors

International Rectifier
http://www.irf.com
power transistors

International Semiconductor
http://www.multiplex.com/1/a/IntlSemiconductor
diodes, rectifiers

Interpoint
http://www.interpoint.com
DC/DC converters, EMI filters, custom medical chips

Invox Technology
http://www.invoxtech.com
nonvolatile analog memory chips, voice chips, Flash

Io Research
http://www.iores.com.au/hw.html
FEC chipset

IQ Systems
http://www.iqsystemsinc.com
speech chips, front panel controller chips, data acquisition controllers

Irvine Sensors
http://www.irvine-sensors.com
DRAM modules, SRAM modules, Flash modules

Isocom
http://www.isocom.com
optoelectronics

ITT-GTC
http://www.gaastek.com
RF power amplifiers (GaAs)

ITT Semiconductors
see General Semiconductor
see Micronas Intermetall

IXYS
http://www.ixys.com
power transistors, diodes, thyristors