Companies starting with A
- A Grumpy Fox
- A44
- Aardvark Swift
- Abyssal Arts
- Accelerate Games
- Acclaim Games
- ACE Team
- Achimostawinan Games
- Acid Nerve
- Action Forms
- Activision
- Activision Blizzard
- Aeternum Game Studios
- Afterburn
- Afterburner Studios
- Agens
- Aggro Crab
- Akupara Games
- Alblune
- Alienware
- Alkemi
- Alkimia Interactive
- All In! Games
- All Possible Futures
- Amazon
- Amazon Game Studios
- Amazon Games
- Amazon Prime
- AMC Games
- AMD
- Amplifier Game Invest
- Ancient Forge Studio
- Angel Matrix
- Annapurna Interactive
- Anshar Studios
- Apogee Software
- Appeal
- Appeal Studios
- Application Systems Heidelberg Software
- Arctic
- Ares Dragonis
- Arkane Austin
- Arkane Studios
- Armor Games Studios
- Arrowiz
- Artdink
- ARTE France
- Artificer
- Artisan Studio
- Arzest Corporation
- Asmodee
- Asobo Studio
- Assemble Entertainment
- Astragon Entertainment GmBH
- ASUS ROG
- Atlus
- AuntyGames
- Auroch Digital
- Avalanche Software