List of motor scooter manufacturers and brands

A scooter (also known by the full name motor-scooter), is a subset of motorcycles with a step-through frame, a seat, and a platform for the rider's feet (as opposed to straddling the vehicle like a conventional motorcycle). Other common (but non-defining) traits of scooters can include: bodywork (so the mechanicals are not exposed like a conventional motorcycle), motors combined with the suspension or wheel (rather than attached to the frame like a conventional motorcycle), leg shields, smaller wheels than a conventional motorcycle, shiftless transmissions, and an alternative to a chain drive.

Source: Wikipedia — List of motor scooter manufacturers and brands (CC BY-SA 4.0)