List of trolleybus manufacturers

Current

• Astra Bus, Romania
• Belkommunmash, Belarus
• Bogdan, Ukraine
• CAIO Induscar^{:pt:CAIO Induscar|PT}, Brazil
• DINA, Mexico
• Dongfeng Yangtse, China
• Ekova Electric, Czech Republic
• Electron Corporation, Ukraine
• Eletra Industrial^{:pt:Eletra Industrial|PT}, Brazil
• Etalon, Ukraine
• Foton Motor, China
• Fiat Group, Italy
• *Iveco
• **Irisbus
• Gillig, United States
• Hess, Switzerland
• Kiepe Electric, Germany – electrical equipment only with Gillig, United States, as subcontractor for bodies and chassis
• MAZ, Belarus
• New Flyer Industries or Flyer Industries, Canada/USA
• PC Transport Systems, Russia
• Pyongyang Trolleybus Works, North Korea
• Škoda Electric, Czech Republic - electrical equipment only with various bus builders as subcontractor for bodies and chassis
• Solaris Bus & Coach, Poland
• SOR Libchavy, Czech Republic
• Sunwin, China
• Trans-Alfa, Russia
• Ursus, Poland
• Ufa Tram and Trolleybus Plant, formerly Bashkir Trolleybus Plant, Russia
• Van Hool, Belgium
• Youngman, China
• Yutong, China
• Zhongtong Bus, China

  Former

• Alfa Romeo, Italy
• Almatyelectrotrans-Service, formerly Electromash
• AM General, USA
• AnsaldoBreda and predecessors Ansaldo Trasporti and Breda Costruzioni Ferroviarie, Italy
• Aviant Aircraft Factory, Kiev, Ukraine
• Associated Equipment Company, UK
• Berkhof, Netherlands
• Berna, Switzerland
• BredaMenarinibus^{:it:BredaMenarinibus|IT}, Italy
• British United Traction, UK
• Brown Boveri & Company for Edmonton, Canada
• Busscar, Brazil
• Canadian Car and Foundry, Canada
• Chavdar, Bulgaria
• Crossley Motors, UK
• Daimler Motor Company, UK
• Dennis Specialist Vehicles, UK
• DesignLine, New Zealand
• ELBO, Greece
• Electric Transit, Inc., USA-based joint venture
• Fiat, Italy
• FBW, Switzerland
• Gräf & Stift, Austria
• Guy Motors, UK
• Henschel, Germany
• Hispano-Suiza, Spain
• Ikarus, Hungary
• J.G. Brill, USA
• Jelcz, Poland
• Kawasaki
• Lancia, Italy
• Leyland Motors, UK
• LiAZ, Russia
• LuAZ, Ukraine
• LAZ, Ukraine
• MAN, Germany
• Mafersa, Brazil
• Marmon-Herrington, USA
• Materfer, Argentina
• Menarini, Italy – acquired by Breda in 1989, forming BredaMenarinibus
• Mercedes-Benz, Germany
• MASA – now part of Volvo, Mexico
• Moscow Trolleybus Plant, Russia
• NAW, Switzerland
• Neoplan, Germany
• Neoplan USA
• Pegaso, Spain
• PTMZ, Russia
• Praga, Czech Republic
• Pullman-Standard, USA
• Ransomes, Sims & Jefferies, UK
• Richard Garrett & Sons, UK
• Rocar, Romania
• Saurer, Switzerland
• Salvador Caetano, Portugal
• St. Louis Car Company, USA
• Scania AB, Sweden
• Socimi, Italy
• Sunbeam, UK
• Tatra, Czech Republic
• Trolza, Russia
• Tushino Mechanical Plant, Russia
• Twin Coach, USA
• Valmet, Finland
• Vétra, France
• Viseon Bus, Germany
• Volgograd transport and machinery plant, Russia
• Volvo Buses, Sweden
• Yaroslavl motor plant, Russia
• YuMZ - Dnipro, Ukraine