Since the invention of the trolleybus, well over 200 different builders of trolleybuses have existed.[1] This is a list of trolleybus manufacturers, both current and former.
electrical equipment only – usually as a subcontractor to various bus builders as subcontractor for bodies and chassis; however, for Dayton, Kiepe was the lead contractor, and installed its electrical equipment in otherwise complete vehicles built by Gillig as a subcontractor to Kiepe[4]