| Nazwa studia/producenta |
| K Production |
| Kadokawa Shoten |
| Kansai TV |
| Ken Media |
| KenRan Project |
| Khara |
| Kids Station |
| Kimikiss Production Team |
| Nazwa studia/producenta |
| Kiminozo Production Committee |
| Kitty Films |
| Kodansha |
| Konami Digital Entertainment |
| KORAD |
| KSS |
| Kurau Project |
| Kyoto Animation |
