Defunct companies based in California

defunct airline of the United States (1934—2012)

thumb|right|Convair F-106 Delta Dart thumb|right|Convair 880 thumb|right|RIM-2 Terrier antiaircraft missile on board USS Providence thumb|right|Atlas rocket launching Friendship 7, the first U.S. crewed orbital space flight thumb|right|Atlas-Centaur with [[Pioneer 10 on launch pad]]

3dfx Interactive, Inc. was an American computer hardware company headquartered in San Jose, California, founded in 1994, that specialized in the manufacturing of 3D graphics processing units, and later, video cards. It was a pioneer in the field from the mid 1990s to 2000.

Transmeta Corporation was an American fabless semiconductor company based in Santa Clara, California. It developed low power x86 compatible microprocessors based on a VLIW core and a software layer called Code Morphing Software.

former American financial services company based in San Francisco, California

airline

software company based in Santa Cruz, California

eMachines was a brand of economical personal computers. In 2004, it was acquired by Gateway, Inc., which was in turn acquired by Acer Inc. in 2007. The eMachines brand was discontinued in 2013.

Ashton-Tate Corporation was a US-based software company best known for developing the popular dBASE database application and later acquiring Framework from the Forefront Corporation and MultiMate from Multimate International. It grew from a small garage-based company to become a multinational corporation. Once one of the "Big Three" software companies, which included Microsoft and Lotus, the company stumbled in the late 1980s and was sold to Borland in September 1991.

video game accessories company

company

Cinematronics Inc. was an American video game publisher that primarily released arcade video games. Cinematronics and Atari, Inc. released vector-display games, which offered a distinctive look and a greater graphic capability (at the time), at the cost of being only black and white (initially). Cinematronics also published ''Dragon's Lair'' in 1983, the first major LaserDisc video game.

American personal computer manufacturer (1980–2001)

Synertek, Inc. was an American semiconductor manufacturer founded in 1973. The initial staff consisted of Bob Schreiner (the CEO), Dan Floyd, Jack Balletto, and Gunnar Wetlesen and Zvi Grinfas. Schreiner, Floyd, Balletto and Wetlesen were all formerly of Fairchild Semiconductor, and Synertek is thus one of the many "Fairchildren". The company became a major vendor during the late 1970s and early 1980s on the strength of their licensed production of the MOS 6502, one of the most successful microprocessors of the era. Synertek won supply deals with Apple Computer and Atari, who would produce mil

company

arcade game manufacturer

American shipping company (1848-1949)

Cromemco, Inc. was a Mountain View, California microcomputer company known for its high-end Z80-based S-100 bus computers and peripherals in the early days of the personal computer revolution.

former American toy and electronic game manufacturer based in Compton, California

Pertec Computer Corporation (PCC), formerly Peripheral Equipment Corporation (PEC), was a computer company based in Chatsworth, California which originally designed and manufactured peripherals such as floppy drives, tape drives, instrumentation control and other hardware for computers.