A list of video game companies from Japan.
Wikipedia has a category for them.
Major Video Games Publishers
Video Game Developers
- Five PB
- Artoon
- Ambrella
- Arc System Works
- Access Games
- Broccoli
- CAVYHOUSE
- CyberConnect2
- Chilla's Art
- Compile Heart
- Clap Hanz
- Camelot Software Planning
- Cave
- Dimps
- 8ing/Raizing
- FromSoftware
- Flight-Plan
- Game Arts
- Game Freak
- Gust Corporation
- Grasshopper Manufacture
- G.rev
- Grezzo
- Genius Sonority
- Genki
- Hal Laboratory
- Kojima Productions
- Kairosoft
- KAZe
- indieszero
- Intelligent Systems
- Inti Creates
- I Ni S
- Level-5
- Mistwalker
- Monolith Soft
- Media Vision
- M2
- NanaOn-Sha
- Polyphony Digital
- PlatinumGames
- Q Games
- Q Entertainment
- Red Entertainment
- Sting Entertainment
- Sonic Team
- SIE Japan Studio
- Sora Ltd
- SIE Japan Studio
- Success
- SIMS Co Ltd
- Spike Chunsoft
- Tamsoft
- Tose
- Treasure
- tri-Ace
- Twilight Frontier
- Too Kyo Games
- Vanillaware
- Voltage, Inc.
- Westone Bit Entertainment
Visual Novel Companies
Others
- AliceSoft
- Access
- Carpe Fulgur
- Dangen Entertainment
- Edelweiss
- EasyGameStation
- Fox Eye
- gPotato
- GungHo Online Entertainment
- LittleWing
- Natsume
- Orange_Juice
- Osamu Sato
- Rejet
- Team Ladybug
Defunct Video Game Developers/Publishers
- ADK
- Allumer
- Banpresto
- Clover Studio
- Compile
- Data East
- feelplus
- Game Republic
- Hudson Soft
- Human Entertainment
- Hi Corp
- Imageepoch
- Kaneko
- Psikyo
- Toaplan
- Telenet Japan
- Vic Tokai