Companies
- Abstraction Games
- Absurd Ventures
- Acclaim Games
- Ace Magician
- Acer
- Acid Nerve
- Acid Wizard Studio
- Activision
- Activision Blizzard
- Airtight Games
- Alchemist Interactive
- Alchemist Series
- Alienware
- Alkimia Interactive
- All In! Games
- All Possible Futures
- Alpha Dog Games
- Altraverse
- Amanita Design
- Amaze Entertainment
- Amazon
- Amazon Game Studios
- Amazon Game Studios, Double Helix Games
- Amazon Games
- Amazon Prime