KAMAZRussiaKariaFinland
Kawasaki Heavy IndustriesJapan
Kawasaki MotorsJapan
Kawasaki Railcar ManufacturingJapan
Kelenföld tram depotHungary
KiaSouth KoreaKilowFranceKim Chong-tae Electric Locomotive Works1945
Kinki SharyoJapan
Kirov PlantRussia
Kisha SeizoJapan
Kolomna Locomotive WorksRussia
KonstalPoland
KONČAR – Elektroindustrija d.d.Croatia
Krauss-Maffei WegmannGermany
KraussMaffeiGermany
Kriukiv Railway Car Building WorksUkraineKrálovopolskáCzech RepublicKyiv Factory of the Electrically-powered transportSoviet Union
Křižík Works1891