Divisions and subsidiaries
AtariAge | Atari, Inc. | Atari Interactive (Infogrames) | California US Holdings | Digital Eclipse | MobyGames

Hardware
Video game consoles
Atari Home Pong | Stunt Cycle | Video Pinball | Atari 2600 | Atari 5200 | Atari 7800 | Atari XEGS | Atari Lynx | Atari Jaguar (CD) | Atari VCS
Licensed
Atari 10 in 1 | Atari Flashback
Computers
Personal computers
Atari 400 | Atari 800 | Atari XL | Atari XE | Atari ST | Atari Mega STE | Atari Transputer Workstation | Atari Falcon
Portable
Atari STacy | ST Book | Atari Portfolio

Defunct/Former
Atari Games | Atari Japan | Atari United Kingdom | Atari Melbourne House | Namco Bandai Partners¹ | Cryptic Studios | Eden Games | Europress | Humongous | Infogrames Interactive | Infogrames North America | Infogrames Sheffield House | Legend Entertainment | MicroProse | Paradigm Entertainment | Reflections Interactive | Shiny Entertainment

¹Co-owned with Namco Bandai Games