| Name | Types | |
|---|---|---|
| K2software | Developer | |
| K33 | Developer | |
| K4atre | Developer | |
| KAJ | DeveloperPublisher | |
| KAJINOYU | Developer | |
| KAKwit | Developer | |
| KANGARUMBLE | Developer | |
| KASUMI | Developer | |
| KATHARSIS ART | Developer | |
| KATRA Production | Developer | |
| KAYDEM Studio | Developer | |
| KAYRUNJAAVICE | Developer | |
| KAZEEmb3r | Developer | |
| KAZe | Developer | |
| KAoTI | Developer | |
| KA·IN WORKS | Developer | |
| KC | Developer | |
| KC Amber | Developer | |
| KC Bros | Developer | |
| KC Shi | Developer | |
| KCE Chicago | Developer | |
| KCE Hawaii | Developer | |
| KCE Nagoya | Developer | |
| KCE Sapporo | Developer | |
| KCE Shinjuku | Developer | |
| KCE Studios | Developer | |
| KCE Tokyo | Publisher | |
| KCE Yokohama | Developer | |
| KCEA | Developer | |
| KCEJ | DeveloperPublisher | |
| KCEK | Developer | |
| KCEN | Developer | |
| KCEO | Developer | |
| KCES | Developer | |
| KCET | DeveloperPublisher | |
| KCM_Ego | Developer | |
| KCORPGAMES | Developer | |
| KChamp | DeveloperPublisher | |
| KD Lab | Developer | |
| KD Office | DeveloperPublisher | |
| KD Vision | Developer | |
| KDM | Developer | |
| KDV Games | Developer | |
| KE elctronics | Developer | |
| KENAMICK Entertainment | Developer | |
| KEYREAL | Developer | |
| KFriskeStudios | Developer | |
| KH Video | Publisher | |
| KHONNAKHANG_DV | Developer | |
| KID | DeveloperPublisher | |
| 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 |