Companies starting with A
- Aardvark Swift
- Abyssal Arts
- Accelerate Games
- ACE Team
- Achimostawinan Games
- Acid Nerve
- Activision
- Activision Blizzard
- Aeternum Game Studios
- Afterburner Studios
- Agens
- Aggro Crab
- Akupara Games
- Alienware
- Alkemi
- Alkimia Interactive
- All In! Games
- All Possible Futures
- Amazon Game Studios
- Amazon Games
- AMC Games
- AMD
- Amplifier Game Invest
- Ancient Forge Studio
- Angel Matrix
- Annapurna Interactive
- Anshar Studios
- Apogee Software
- Ares Dragonis
- Arkane Austin
- Arkane Studios
- Armor Games Studios
- Artisan Studio
- Asmodee
- Asobo Studio
- Assemble Entertainment
- Astragon Entertainment GmBH
- Atlus
- Auroch Digital
- Avalanche Software