An OEM (Original Equipment Manufacturer) is a company that designs and manufactures components or complete vehicles under its own brand.
In the electric mobility sector, this typically refers to EV manufacturers of trucks, buses, and cars.
OEMs ensure the quality and compatibility of parts with their specific models and are responsible for the final assembly of the vehicle.
In North America, examples include Tesla, Freightliner, Rivian, PACCAR, and Volvo Trucks North America.