List of integrated circuit manufacturers
The following is an incomplete list of notable integrated circuit (i.e. microchip) manufacturers. Some are in business, others are defunct and some are Fabless.
0–9
- 3dfx Interactive (acquired by Nvidia in 2002)
 
A
- Achronix
 - Actions Semiconductor
 - Adapteva
 - Agere Systems (now part of LSI Logic formerly part of Lucent, which was formerly part of AT&T)
 - Agilent Technologies (formerly part of Hewlett-Packard, spun off in 1999)
 - Airgo Networks (acquired by Qualcomm in 2006)
 - Alcatel
 - Alchip
 - Altera
 - Allegro Microsystems
 - Allwinner Technology
 - Alphamosaic (acquired by Broadcom in 2004)
 - AMD (Advanced Micro Devices; founded by ex-Fairchild employees)
 - Analog Devices
 - Apple Inc.
 - Applied Materials
 - Applied Micro Circuits Corporation (AMCC)
 - ARM
 - Asahi Kasei Microdevices (AKM)
 - AT&T
 - Atari
 - Atheros (acquired by Qualcomm in 2011)
 - ATI Technologies (Array Technologies Incorporated; acquired parts of Tseng Labs in 1997; in 2006, became a wholly owned subsidiary of AMD)
 - Atmel (co-founded by ex-Intel employee, now part of Microchip Technology)
 - Amkor Technology
 - ams AG (formerly known as austriamicrosystems AG and frequently still known as AMS (Austria Mikro Systeme))
 
B
- Bourns, Inc.
 - Brite Semiconductor
 - Broadcom Corporation (acquired by Avago Technologies in 2016)
 - Broadcom Inc. (formerly Avago Technologies)
 - BroadLight
 - Burr-Brown Corporation (Acquired by Texas Instruments in 2000)
 
C
- C-Cube Microsystems
 - Calxeda (re-emerged with Silver Lining Systems in 2014)
 - Cavium
 - CEITEC
 - Chips and Technologies (acquired by Intel in 1997)
 - CISC Semiconductor
 - Cirrus Logic
 - Corsair
 - Club 3D (Formerly Colour Power)
 - Commodore Semiconductor Group (formerly MOS Technologies)
 - Conexant (formerly Rockwell Semiconductor, acquired by Synaptics in 2017)
 - Crocus Technology[1]
 - CSR plc (formerly Cambridge Silicon Radio)
 - Cypress Semiconductor Now operating as subsidiary of Infineon Technologies.It was (acquired by Infineon Technologies in 2019).
 
D
- D-Wave Systems
 - Dallas Semiconductor (acquired by Maxim Integrated in 2001)
 - Dynex Semiconductor
 
E
- Elmos Semiconductor
 - EM Microelectronic-Marin (subsidiary of The Swatch Group)
 - Entropic Communications (acquired by MaxLinear in 2015)
 - Epistar
 - Epson
 - ESS Technology
 - Everspin Technologies
 - Exar Corporation (established as a subsidiary of Rohm Semiconductor, acquired by MaxLinear in 2017)
 - EZchip Semiconductor (acquired by Mellanox Technologies in 2016)
 
F
- Fagor (owned by Mondragon Corporation)
 - Fairchild Semiconductor
 - Ferranti
 - Freescale Semiconductor (formerly part of Motorola, merged in 2015 with NXP)
 - FTDI
 - Fujifilm
 - Fujitsu
 
G
- G.Skill
 - General Instrument (semiconductor division acquired by Vishay Intertechnology in 2001)
 - Genesis Microchip
 - GlobalFoundries
 - GM Components Holdings
 - GMT Microelectronics (formerly Commodore Semiconductor Group)
 - GreenPeak Technologies (acquired by Qorvo in 2016)
 
H
- Harris Semiconductor (acquired by Intersil)
 - HannStar Display Corporation
 - HiSilicon
 - Hitachi, Ltd.
 - Holtek
 
I
- IBM (International Business Machines)
 - IM Flash Technologies (founded by Intel Corporation and Micron Technology, Inc.)
 - Imagination Technologies (acquired by Canyon Bridge in 2017)
 - Infineon Technologies (formerly part of Siemens)
 - InfoTM
 - Ingenic Semiconductor
 - Inmos
 - Inprocomm (acquired by MediaTek in 2005)
 - Integra Technologies
 - International Rectifier (now part of Infineon Technologies since 2015)
 - Integrated Device Technology
 - Intel (founded by ex-Fairchild employees)
 - Intersil (formerly Harris Semiconductor, bought by Renesas in 2017)
 - Intrinsity (acquired by Apple Inc. in 2010)
 - InvenSense (acquired by TDK in 2016)
 - Industrial Technology Research Institute
 - IXYS Corporation
 
J
- Jazz Semiconductor (acquired by Tower Semiconductor in 2008)
 - Jennic Limited (acquired by NXP Semiconductors in 2010)
 
K
L
- Lattice Semiconductor
 - Leadcore Technology
 - Linear Technology (now under Analog Devices since 2016)
 - Littelfuse
 - Lantiq (acquired by Intel in 2015)
 - LSI Logic (founded by ex-Fairchild employees)
 
M
- M-Labs (formerly known as the Milkymist project)
 - M-Systems (acquired by SanDisk in 2006)
 - Macronix
 - Magnum Semiconductor (acquired by GigOptix in 2016)
 - MaxLinear
 - Marvell Technology Group
 - MediaTek
 - Mellanox Technologies
 - Mentor Graphics (subsidiary of Siemens)
 - Microchip Technology
 - Micron Technology
 - Microsemi (acquired by Microchip Technology in 2018)
 - MicroSystems International
 - Mindspeed Technologies (spun off from Conexant)
 - MIPS Technologies (acquired by Imagination Technologies in 2013, Imagination Technologies later sold the company to Tallwood Venture Capital in 2017)
 - Mitsubishi Electric
 - MOS Technology (founded by Allen-Bradley)
 - Mosel Vitelic Corporation (defunct in 2009)
 - Mosel Vitelic Inc
 - Mostek (founded by ex-Texas Instruments employees)
 - Motorola (semiconductor division spun off as Freescale Semiconductor)
 
N
- National Semiconductor (aka "NatSemi"; founded by ex-Fairchild employees, bought in 2011 by Texas Instruments)
 - NEC (semiconductor division merged with Renesas Electronics)
 - NetLogic Microsystems (acquired by Broadcom Corporation in 2012)
 - Nexperia (Spin-off from NXP, founded in 2017)
 - Nichia
 - Nintendo
 - Nordic Semiconductor (formerly known as Nordic VLSI)
 - Novellus Systems
 - Nvidia (acquired IP of competitor 3dfx in 2000; 3dfx was co-founded by ex-SGI employee)
 - NXP Semiconductors (formerly part of Philips)
 - Number Nine Visual Technology (acquired by S3 Graphics in 2000)
 - Nuvoton (Winbond spun off)
 
O
- OSRAM
 - Oak Technology (acquired by Zoran Corporation in 2003)
 - ON Semiconductor (formerly part of Motorola)
 - Open-Silicon
 
P
- Phison
 - Parallax Inc.
 - Philips Semiconductors (spun off as NXP Semiconductors)
 - Plessey
 - PLX Technology (acquired by Avago Technologies, now Broadcom Inc.)
 - PMC-Sierra (from the former Pacific Microelectronics Centre and Sierra Semiconductor, the latter co-founded by ex-NatSemi employee)
 - Panasonic (formerly known as Matsushita Electric Industrial Co., Ltd.)
 - PortalPlayer (acquired by Nvidia in 2007)
 - Powerchip Semiconductor
 - Pragmatic Semiconductors
 - Precision Monolithics (Acquired by Analog Devices in 1990)
 
Q
R
- Rabbit Semiconductor (acquired by Digi International in 2006)
 - Ralink (acquired by MediaTek in 2011)
 - Rambus
 - RCA
 - Realtek
 - Renesas Technology (joint venture of Hitachi and Mitsubishi Electric)
 - Reticon
 - RF Micro Devices (merged with TriQuint Semiconductor to form Qorvo in 2015)
 - Ricoh
 - Rise Technology (acquired by Silicon Integrated Systems in 1999)
 - Robert Bosch
 - Rockchip
 - Rockwell Semiconductor (spun off as Conexant)
 - Rohm
 - Roland Corporation
 - RMI Corporation (Merged into NetLogic Microsystems, then Broadcom)
 
S
- Samsung Electronics (Semiconductor division)
 - Sanyo (Semiconductor division sold off to ON Semiconductor in 2010)
 - Sanken Electric
 - SanDisk (acquired by Western Digital in 2016)
 - Seagate Technology
 - Sensonor (acquired by Infineon Technologies in 2012)
 - Sharp Corporation (Sharp Semiconductor division)
 - SiFive
 - Signetics (acquired by Philips (now NXP) in 1975)
 - Sigma Designs
 - SigmaTel (acquired by Freescale which merged with NXP in 2015)
 - Silicon Motion
 - Silicon Systems (now part of Western Digital)
 - Silicon Labs
 - Silicon Image (acquired by Lattice Semiconductor in 2015)
 - Silicon Integrated Systems
 - SK Hynix
 - Skyworks Solutions (spun-off from Conexant)
 - Sony (Semiconductor division)
 - SMIC
 - Spansion
 - Spreadtrum
 - STMicroelectronics (formerly SGS Thomson)
 - ST-Ericsson (defunct in 2013)
 - Sun Microsystems (acquired by Oracle Corporation in 2010)
 - Symbios Logic (sold to Hyundai Electronics in 1995)
 - Synertek
 
T
- Tamarack Microelectronics (merged with IC Plus in 2002)
 - TDK
 - Telechips
 - Tektronix (semiconductor division sold to Maxim Integrated in 1994)
 - Teridian Semiconductor
 - Texas Instruments
 - Tilera (acquired by EZchip Semiconductor, EZchip was later acquired by Mellanox Technologies)
 - Toshiba
 - Tower Semiconductor
 - Transmeta (acquired by Novafora in 2009)
 - TriQuint Semiconductor (merged with RF Micro Devices to form Qorvo in 2015)
 - Truly International Holdings
 - Trumpf
 - TSMC (Taiwan Semiconductor Manufacturing Company. semiconductor foundry)
 
U
- UMC (company)
 - u-blox
 - Ubicom (formerly Scenix Semiconductor, acquired by Qualcomm Atheros in 2012)
 - UNISOC
 
V
- Vanguard International Semiconductor Corporation
 - VIA Technologies (founded by ex-Intel employee, part of Formosa Plastics Group)
 - Vimicro
 - Virata Corporation (merged with Conexant in 2004)
 - Vishay Intertechnology
 - Vivante Corporation
 - Volterra Semiconductor
 
W
- Wacom
 - Western Digital
 - Wilocity (acquired by Qualcomm Atheros in 2014)
 - Winbond
 - Wolfson Microelectronics
 - WonderMedia
 
X
- X-Fab
 - Xelerated (acquired by Marvell Technology Group in 2012)
 - Xilinx (founded by ex-ZiLOG employee)
 - XMOS
 
Y
Z
- ZiLOG (founded by ex-Intel employees, part of Exxon 1980–89; now owned by TPG)
 - Zoran Corporation (merged with CSR (company) PLC which was later merged to Qualcomm)