| Name | Types | |
|---|---|---|
| KID Corp | Developer | |
| KID Corp. | Developer | |
| KID JP | Publisher | |
| KIDSMIND Inc. | Developer | |
| KIM ROYAL | Developer | |
| KIRA | Developer | |
| KITGames | Developer | |
| KIUProduction | Developer | |
| KJAM | Developer | |
| KK | Developer | |
| KKlear | Developer | |
| KK̈ITAȺNIK | Developer | |
| KLIMcold | Developer | |
| KLewis | Developer | |
| KM-Games | Developer | |
| KMM Games | Developer | |
| KNEEDO | Developer | |
| KNGDAVD Game Team | Developer | |
| KNIGHTOWLPUB | Developer | |
| KO Games | Developer | |
| KOEI | DeveloperPublisher | |
| KOEI TECMO AMERICA | Publisher | |
| KOEX studio | Developer | |
| KOGADO Studio | DeveloperPublisher | |
| KOMP | Developer | |
| KONAMI | Publisher | |
| KOROZiF | Developer | |
| KOSHA | Developer | |
| KO_OP | DeveloperPublisher | |
| KOyint | Developer | |
| KPD | Developer | |
| KPysh | Developer | |
| KR | Developer | |
| KR Game Studios | DeveloperPublisher | |
| KRB3AST | Developer | |
| KRL_Fantasy | Developer | |
| KRP | Developer | |
| KRU Interactive | Publisher | |
| KS98 | Developer | |
| KSBP | Developer | |
| KSS | DeveloperPublisher | |
| KST Studio | Developer | |
| KT Games | Developer | |
| KT Racing | Developer | |
| KTGames | Developer | |
| KTgodgod | Developer | |
| KUMON | Publisher | |
| KURAMA | Developer | |
| KV_Kingdom | Developer | |
| KXI System | Developer |