The company was founded in 1873, and named NSU (NeckarSUlm) from 1892.
NSU was known mainly for its motorcycles. Cars were produced between 1905 and 1931, and between 1957 and 1977.
In 1969 NSU merged with Auto Union (Audi). The Name "NSU" ceased with the stop of the production of the NSU Ro 80 in 1977.