Companies
- A44
- Aardman Animations
- Aardvark Swift
- AARP
- Abbey Games
- Abertay University
- Abstraction Games
- Absurd Ventures
- Academy of Interactive Arts & Sciences
- Accel
- Access Games
- Accidental Queens
- Acclaim Games
- Achimostawinan Games
- Acid Wizard Studio
- Acony
- Acony Games
- Acquire
- Activision
- Activision Blizzard
- Activision Minneapolis
- AddictingGames.com
- Adidas AG
- Adjust
- Adobe