Companies
- Arrowhead Game Studios
- ArtCraft
- ARTE France
- ArtePiazza
- Artificer
- Artificial Mind and Movement
- Artisan Studios
- Arzest Corporation
- Ascaron
- Ascendant Studios
- Asmodee
- Asmodee Digital
- Asobo Studio
- Aspyr
- ASRock
- Astragon Entertainment GmBH
- AstralShift
- Astro Gaming
- Asus
- Atari
- Atlus
- Atlus USA
- Atomic Elbow
- Auroch Digital
- Autumn Games