- 3rd party
- Acclaim
- Activision
- Activision Inc.
- Activision Publishing
- Activsion
- Atari
- Atari Inc.
- Atlus
- Atlus Video Games
- Capcom
- Classic Game Source
- CTA Digital
- Disney
- EA
- Eagl3
- Eidos Interactive
- EMS
- Exo-Flex
- Feral Interactive
- Galoob
- Galoob Toys
- generic
- GENERIC BRAND
- Global Game Gear
- Gtron
- HORI
- Hyperkin
- Innovations
- Intec
- Konami
- LJN GAMES
- MadCatz
- Madness Gameware
- Mastiff
- Mayflash
- Micro Innovations
- Midway Entertainment
- Myelin Media
- NA
- Namco
- Nintendo
- OEM
- Plug FX
- Retro Duo
- Retro Motion
- retro USB
- Retro-Bit
- Retro-Link
- SEGA
- SEGA DREAMCAST
- Sega Genesis
- Sega Genesis/Konami
- Sega of America
- Sega Of America, Inc.
- Sega Video Games
- Shinobii
- Sony
- Sony Computer Entertainment
- SPIG
- THQ
- THQ (PC Games)
- Tomee
- UBI Soft
- Williams
- Working Designs
- Yobo
- Yobo Gameware
