| ID | Name | Type |
|---|---|---|
| #19699 | Konstantin Zubarev | + |
| #8146 | Konstantin Zuykov | + |
| #8147 | Kooll | ? |
| #19247 | KopSoft | P |
| #8148 | Kosmos Software Ltd | P |
| #8149 | Kostandin Igor Ruiz | + |
| #8150 | Kostya Teterin | + |
| #8151 | Kot | ? |
| #8152 | Kotsoft | Z |
| #20651 | Kounch | P |
| #20849 | Kovopodnik OPMH Broumov | P |
| #19233 | Kovsoft | P |
| #21817 | Kowalski | - |
| #22488 | Kozelek | P |
| #18907 | Kpacku | P |
| #8153 | Kpamapehko B.A. | + |
| #8154 | Kraft | ? |
| #8155 | Krajowa Agencja Wydawnicza | Z |
| #8156 | Krajowe Wydawnictwo Czasopism | Z |
| #19867 | KrappyGamez | P |