TÜLOMSAŞ (Türkiye Lokomotif ve Motor Sanayi Anonim Şirketi) is a locomotive and wagon builder in Turkey. It is the main locomotive supplier of the Turkish State Railways and is one of the 2 companies that designs and assembles locomotives in Turkey along with EUROTEM. TÜLOMSAŞ is the largest company in Turkey in rail transport. The company headquarters and factory are located in Eskişehir.The company builds GE PowerHaul locomotives under a partnership with GE Transportation.