AJS

A. J. Stevens & Co. Ltd (AJS)
Founded1909
FounderA. J. Stevens
Defunct1931
FateBrand name AJS sold numerous times after 1931.
SuccessorMatchless
HeadquartersWolverhampton, England, ,
England
Key people
Joe Stevens
ProductsCars and motorcycles

A. J. Stevens & Co. Ltd better known as AJS is a British motorcycle and automobile manufacturer. Historically it was in operation from 1909 to 1931 and was founded by the Stevens brothers in Wolverhampton, England. In 1931 the firm was sold, to Matchless, Associated Motorcycles. In 1966 the company became part of Norton-Villiers. In 2025 a company under the original badge of AJS continues to produce lightweight motorcycles and scooters largely for the British A2 motorcycle market.

The AJS company has a motorcycle racing legacy and held 117 motorcycle world records related to events such as the Isle of Man TT races.