Companies
- Action Forms
- Activision
- Activision Blizzard
- Adult Swim Games
- Aeternum Game Studios
- Agetec
- Aggro Crab
- Airship Syndicate
- Airtight Games
- Aksys Games
- Akupara Games
- Alcachofa Soft
- Alchemist Series
- Alkimia Interactive
- All In! Games
- All Possible Futures
- Almost Human
- Alpha Dog Games
- Amanita Design
- Amazon
- Amazon Game Studios
- Amazon Game Studios, Double Helix Games
- Amazon Games
- AMD
- AMPLITUDE Studios