

Saratov., City of Engels, est District
Russia, 413105,
Trolza is a trolleybus producer in Russia. In the Soviet era it was known as ZiU (Zavod imeni Uritzkogo). The enterprise was founded in Imperial Russia in 1868, but it began producing trolleybuses after 1951. ZiU/Trolza built over 65,000 trolleybus vehicles and continues this business now.