Companies
- Armature Studio
- Armor Games
- Arrowhead Game Studios
- Art of Crime ApS
- ArtCraft
- Artisan Studios
- Artplant
- Ascaron
- Ascendant Studios
- Asda
- AsiaSoft
- Asiasoft Corporation Public Company Limited
- Asmodee
- Asmodee Digital
- Asobo Studio
- Aspyr
- Astra Logical
- Astragon Entertainment GmBH
- Asus
- Asylum Entertainment
- AT&T
- Atari
- ATGames
- Atlas Interactive Deutschland GmbH
- Atlas Interactive Group