| Kaliningrad Port Maritime Administration |
Russia |
| Kaliningradsky Vagon Zavod |
Russia |
| Kazakhstan Temir Zholy |
Kazakhstan |
| Kaztransservice |
Norway |
| Kirkenes Utvikling |
Kazakhstan |
| Klaipeda State Seaport Authority |
Lithuania |
| Klondaik-Sviaz |
Russia |
| Kompass Tranzits |
Latvia |
| Kotka Container Terminal c/o Strveco Oy |
Finland |
| KR-ES |
Latvia |
| Krukovsky Vagonostroitelny Zavod |
Ukraine |