Editing Trolleybus (section)

==Manufacturing==
{{Further|List of trolleybus manufacturers}}
[[File:ZiU 9 Athens.jpg|thumb|A [[ZiU-9]] trolleybus in service in [[Piraeus]], Greece, on the large Athens-area trolleybus system. The Russian-built ZiU-9 (also known as the ZiU-682), introduced in 1972, is the most numerous trolleybus model in history, with more than 45,000 built.<ref name="Murray"/>{{rp|114}} In the 2000s it was effectively rendered obsolete by [[low-floor bus|low-floor]] designs.]]
Well over 200 different trolleybus makers have existed – mostly commercial manufacturers, but in some cases (particularly in [[Communist state|communist countries]]), built by the publicly owned operating companies or authorities.<ref name="Murray"/>{{rp|91–125}} Of the defunct or former trolleybus manufacturers, the largest producers in North America and Western Europe&nbsp;– ones whose production totalled more than 1,000 units each&nbsp;– included the U.S. companies [[J. G. Brill Company|Brill]] (approx. 3,250 total), [[Pullman Company|Pullman-Standard]] (2,007), and [[Marmon-Herrington]] (1,624); the English companies [[Associated Equipment Company|AEC]] (approx. 1,750), [[British United Traction|British United Traction (BUT)]] (1,573), [[Leyland Motors|Leyland]] (1,420) and [[Sunbeam Commercial Vehicles|Sunbeam]] (1,379); France's [[Vétra]] (more than 1,750); and the Italian builders [[Alfa Romeo]] (2,044) and [[Fiat]] (approx. 1,700).<ref name="Murray"/> The largest former trolleybus manufacture is [[Trolza]] (formerly Uritsky, or ZiU) since 1951, until they declared their bankruptcy in 2017, building over 65000 trolleybuses. Also, [[Canadian Car and Foundry]] built 1,114 trolleybuses based on designs by Brill.<ref name="Murray"/>

As of the 2010s, at least 30 trolleybus manufacturers exist. They include companies that have been building trolleybuses for several decades, such as [[Škoda Works|Škoda]] since 1936 and [[New Flyer]], among others, along with several younger companies. Current trolleybus manufacturers in western and central Europe include [[Solaris Bus & Coach|Solaris]], [[Van Hool]], and [[Carrosserie Hess|Hess]], among others. In Russia ZiU/Trolza has historically been the world's largest trolleybus manufacturer, producing over 65,000 since 1951, mostly for Russia/CIS countries, but after its bankruptcy, its facilities were partially loaned out to [[PC Transport Systems]]. Škoda is Western and Central Europe's largest and the second largest in the world, having produced over 14,000 trolleybuses since 1936, mostly for export, and it also supplies trolleybus electrical equipment for other bus builders such as Solaris, SOR and Breda. In Mexico, trolleybus production ended when [[MASA (company)|MASA]], which had built more than 860 trolleybuses since 1979, was acquired in 1998 by Volvo. However, [[DINA S.A.|Dina]], which is now that country's largest bus and truck manufacturer, began building trolleybuses in 2013.<ref name="tm311">''Trolleybus Magazine'' No. 311 (September–October 2013).</ref>{{rp|134}}