| Level 5 - https://en.wikipedia.org/wiki/Level-5_(company) | Fukuoka, Fukuoka Prefecture, Japan | |
| Capcom | Osaka, Osaka Prefecture, Japan | |
| Irem | Japan | |
| Nintendo | Kyoto, Kyoto Prefecture, Japan | |
| SNK | Higashi-osaka, Osaka Prefecture, Japan | |
| Vanillaware | Japan | |
| Platinum Games | Japan | |
| Chunsoft | Nagoya, Aichi Prefecture, Japan | |
| Konami | Akasaka, Minato, Tokyo 107-0052, Japan | |
| Nichibutsu | Kita, Osaka, Osaka Prefecture, Japan | |
| Taito | Shinjuku, Tokyo, Japan |