Teams
| Name | Game | Level | |
|---|---|---|---|
| JoulukinkkuGaming | Counter-Strike: GO | Amateur | |
| JoutsanKone | Counter-Strike: GO | - | |
| Joutsenlaulu | Counter-Strike: GO | Amateur | |
| Just Deal With It | Counter-Strike: GO | Amateur | |
| juu | Counter-Strike: GO | Amateur | |
| K1BYTE Blue | Counter-Strike: GO | - | |
| K1ck eSports | Counter-Strike: GO | Amateur | |
| Kamikaze Buccaneers | Counter-Strike: GO | Amateur | |
| Kamikaze Buccaneers | Hearthstone | - | |
| KanaNugetti | Counter-Strike: GO | Amateur | |
| Kanat Uunis | Counter-Strike: GO | Amateur | |
| KärinäRecords | Counter-Strike: GO | Amateur | |
| kebab | Killer Instinct | - | |
| Keita | Hearthstone | - | |
| Keita Gaming | Hearthstone | - |
