Companies starting with J
- Jackbox Games
- Jagex Games Studio
- JAMDAT Mobile Hawaii
- Janbeh Games, LLC
- Japan Studio
- Jardar Solli
- Jason Bond
- Jason Oda
- Jaspel
- Jay Tholen
- JBL
- Jean Nguyen
- Jo-Mei Games
- Johnbell
- Jonathan Blow
- Jordan Freeman Group
- Jordi Roca
- Joystick Ventures
- Jozef Pavelka
- JSAUX
- Julia Minamata
- Jump Over the Age
- Jumpship
- Junction Point
- Jupiter Corporation
- Just Add Water
- Just Flight
- Just For Games
- Just Purkey Games
- Jutsu Games
- Jyamma Games