List of computer system manufacturers
The following is a list of notable computer system manufacturers.

Current

ABS Computer Technologies (Parent: Newegg)
Acer
AG Neovo
Alphabet Inc.
Google
Amiga, Inc.
ACube Systems Srl
Hyperion Entertainment
Aigo
AMD (Advanced Micro Devices)
Aleutia
Alienware (Parent: Dell)
AMAX Information Technologies
AOpen
Apple
ASRock
Asus
AVADirect
AXIOO International
BenQ 
Biostar
Brother Industries
Burroughs Corporation
Corona Data Systems
Chassis Plans
Chip PC
Cisco Systems
Clevo
Crystal Group
Compal
Cooler Master
CyberPowerPC
Dai-Tech 
Data General
Dell
Wyse Technology
DFI
Digital Storm
Elitegroup Computer Systems (ECS)
Eagle Computer 
Epson
Evans & Sutherland
Everex
EVGA
Falcon Northwest
FIC
Fujitsu
Fujitsu Technology Solutions
Foxconn
Founder Technology
Gigabyte
Aorus
GoPro
Gradiente
Groupe Bull
Grundig (Parent: Arçelik)
Hasee
HCL
Hewlett Packard Enterprise
Cray
Silicon Graphics International
HP Inc. (formerly Hewlett-Packard)
Fortify Software
HP Autonomy
Compaq
Digital Equipment Corporation
Hisense
Hitachi
HTC
Huawei
Hyundai
IBM
Intel
Inventec
Itautec
IGEL
Illegear
Jetta International
Kohjinsha
Kontron AG
Lanix
Lanner Electronics
LanSlide Gaming PCs
Lenovo
Medion
LG
LiteOn
Maingear
Meebox
Mesh Computers
Microsoft
Micro-Star International (MSI)
Micro Center
Myria
MiTAC
Motion Computing
Monel
Motorola
NComputing
NCR
NEC
Nvidia
NZXT
Olidata
Oracle
Origin PC
Panasonic
Positivo Informática
Puget Systems
Quanta Computer
RCA
Razer
Samsung
Sapphire Technology
Shuttle
Síragon
Sony
Supermicro
SupernovaGaming
Systemax
System76
T-Platforms
TabletKiosk
Tatung
Toshiba
Tyan
Unisys
V3 Gaming PC
Vaio
Velocity Micro
Vestel
VIA Technologies
ViewSonic
Viglen
Vizio
Valve
Walton Group
Wistron
Wortmann
Xiaomi
Zelybron
Zoostorm
Zotac
zSpace

Defunct

Acorn Computers - Bought by Morgan Stanley and renamed as Element 14 in 1999.
Advanced Logic Research
Alliant Computer Systems - Ceased operations in 1992.
Altos Computer Systems - Acquired by Acer in 1990.
Amdahl Corporation - A wholly owned subsidiary of Fujitsu since 1997.
American Computer and Peripheral
Amstrad
Apollo Computer - Acquired by Hewlett-Packard in 1989.
Apricot Computers - Ceased operations in 1999.
Ardent Computer - Merged with Stellar Computer to form Stardent in 1989.
AST Computers, LLC - Exited the computer market in 2001.
Atari Corporation
AT&T
Toshiba
Bell & Howell
Blue Chip Electronics
Burroughs - Merged with Sperry to form Unisys in 1986.
Canon Computer Systems
Celerity Computing - Acquired by Floating Point Systems in 1988.
Commodore International - Declared bankruptcy in 1994.
Compaq - Acquired by Hewlett-Packard in 2002. Defunct as a subsidiary as of 2013.
CompuAdd - Filed for bankruptcy in 1993.
Computer Automation
Control Data Corporation (CDC) - Shrank as units were spun off from 1988 to 1992; remainder is now Ceridian.
Convergent Technologies - Acquired by Unisys in 1988.
Convex Computer - Purchased by The Hewlett-Packard Company in 1995.
Corona Data Systems - among the original "IBM PC Compatible" clone makers
Cromemco
Data General - was one of the first minicomputer firms from the late 1960s, purchased by EMC in 1999 for its innovative RAID array storage.
Datapoint
Digital Equipment Corporation - Acquired by Compaq in 1998.
DTK Computer
Durango Systems Corporation - Merged with Molecular Systems in 1982 which went bankrupt in 1984
Eagle Computer - Ceased operations in 1986.
Eckert–Mauchly Computer - Acquired by Remington Rand in 1950.
Egenera
Eldorado Electrodata
Elonex — Sells tablets (as of 2011)
EMCC
Encore Computer - Acquired by Gores Technology Group in 1998 and renamed to Encore Real Time Computing.
English Electric - Merged into International Computers Limited.
eMachines - Discontinued by its current owner Acer in 2012.
Escom - Declared bankruptcy on July 15, 1996.
Everex - US subsidiary closed in 2009.
Evesham - Merged into TIME Computers.
Franklin Computer Corporation - Exited computer hardware business and reorganized into Franklin Electronic Publishers.
Gateway - Acquired by Acer in October 2007.
General Electric - Sold its computer division to Honeywell in 1970.
Gericom - Acquired by Quanmax then merged with S&T.
Gould Electronics - Sold its computer division to Nippon Mining in 1988, who in turn sold it to Encore Computer later that year.
Hewlett-Packard - Spun off into Hewlett Packard Enterprise and renamed as HP Inc. in 2015
Honeywell - Sold its computer division to Groupe Bull in 1991.
International Computers and Tabulators (ICT) - Merged into International Computers Limited.
International Computers Limited (ICL) - Now part of Fujitsu.
Kaypro - Filed for bankruptcy in 1992.
Leading Edge - Mid '80s leader in PC clone for the masses - Manufacturing done first by Mitsubishi then Daewoo.
LEO Computers - Lyons Electronic Office. In 1963 merged with English Electric, then Marconi and eventually merged into International Computers Limited (ICL) in 1968.
Luxor AB - Ended in 1986 after being acquired by Nokia the previous year.
Magnavox - Philips PCs rebadged for the USA and Canada.
Magnuson Computer Systems - Filed for bankruptcy in the early 1980s.
Maxdata (Germany) - Insolvent in 2008; warranty for existing products taken over by then the Swiss Belinea AG (see Belinea), now owned by Bluechip Computer. Warranty for Belinea products purchased before 1 November 2008 is not serviced anymore by Bluechip Computer.
Micron Technology - 
Mitsubishi Electronics - Closed computer systems division in 1990; Manufactured systems for Leading Edge and Sperry-Unisys
MPC (formerly MicronPC) - Filed Chapter 11 bankruptcy on November 7, 2008. Efforts at reorganization failed.
Monorail Inc.
Multiflow Computer - Ceased operations in 1990.
NeXT - Acquired by Apple Computer in 1997.
Nixdorf Computer - Acquired by Siemens in 1991, renamed Siemens Nixdorf Informationssysteme AG.
Northgate Computer Systems - Acquired by Lan Plus in 1997, after filing for Chapter 11 bankruptcy in 1994.
Osborne Computer - Ceased operations in 1985; rights to the Osborne brand were sold to Mikrolog.
Olivetti
Packard Bell - Subsidiary of Acer.
Philco-Ford
Philips - Sold their PC division to Digital Equipment Corporation.
Prime Computer - Acquired by Parametric Technology Corporation in 1998.
Processor Technology - Ceased operations in 1979.
Psystar - Under 2009 permanent injunction to stop selling computers with Apple's Mac OS X operating system. Psystar's web site has since disappeared.
Pyramid Technology - Acquired by Siemens in 1995.
Quantex Microsystems - Bankrupt in 2000.
Radio Shack
RCA - Exited the computer business in 1971; Sperry Rand took over RCA's installed base in 1972.
Research Machines - Exited manufacturing in late 2013. Brand continues as a services company.
Remington Rand - Acquired by Sperry to form Sperry Rand in 1955.
Reply Corporation
Sanyo - Bought out by Panasonic.
Scientific Data Systems - Acquired by Xerox in 1969.
Sequent Computer Systems - Acquired by IBM in 1999.
Siemens - Computer division (Siemens Nixdorf Informationssysteme AG) merged 50/50 with Fujitsu into Fujitsu Siemens Computers in 1999, then Siemens half bought by Fujitsu in 2009.
Silicon Graphics - Acquired by Rackable Systems in 2009, when Rackable then re-branded to SGI, and later acquired by Hewlett Packard Enterprise in November 2016.
Sinclair Research - Acquired by Amstrad in 1986.
Smoke Signal Broadcasting
Solbourne Computer - Acquired by Deloitte Consulting in 2008.
Soyo
Sperry - Merged with Burroughs to form Unisys in 1986.
Sperry Rand - Dropped "Rand" from its name in 1978 and continued as Sperry.
Stardent - Ceased operations in 1992.
Stratus Computer
Sun Microsystems - Acquired by Oracle Corporation in 2010.
Systems Engineering Laboratories - Acquired by Gould Electronics in 1981 and became Gould's computer division.
Systime Computers Ltd – Once Britain's second largest, acquired by Control Data Corporation in 1985, broken up in 1989.
Tadpole Computer - Acquired in 2005 by General Dynamics.
Tandon Corporation
Tandy Corporation - Previous parent company of RadioShack, produced the TRS-80 and Tandy 1000 and 2000 IBM PC compatible computers. Sold their computer division to AST Research in 1993.
Tiny Computers - Merged into TIME Computers.
Texas Instruments
Averatec - Averatec subsidiary goes out of business in 2012.
Tulip Computers - Changed its name to Nedfield NV in 2008, pronounced bankrupt on 3 September 2009.
Vigor Gaming (USA) - Disappeared in March 2010.
VoodooPC
VTech - Ceased PC manufacturing.
Walton
Wang Laboratories - Acquired by Getronics in 1999.
Wipro - Ceased PC manufacturing.
Xerox - Exited the computer business.
Zenith Data Systems - Merged With Packard Bell and NEC in 1996.
Zeos - Merged into MPC Corporation in 1996, which in turn filed for Chapter 11 bankruptcy in 2008.

See also
 List of computer hardware manufacturers
 List of laptop brands and manufacturers
 List of touch-solution manufacturers
 Market share of personal computer vendors

References

External links
 epocalc's List of Computer Manufacturers

 
Computing by company
Computing-related lists
Lists of manufacturers
Lists of information technology companies