List of motorcycle manufacturers

The following is a list of motorcycle manufacturers worldwide, sorted by extant/extinct status and by country. These are producers whose motorcycles are available to the public, including both street legal as well as racetrack-only or off-road-only motorcycles. The list of current manufacturers does not include badge engineered bikes or motorcycle customisers, but the list of defunct manufactures may include some of these if they are well remembered for their historical significance.
Manufacturers currently in production.
This is a list of companies currently producing and selling motorcycles available to the public, including both street and race/off-road motorcycles. It does not include badge engineered bikes sold under a different name than their producer, nor motorcycle customisers.
United States.
Simplex Speeder
Manufacturers no longer in production.
This is a list of companies that formerly produced and sold motorcycles available to the public, including both street and race/off-road motorcycles. It also includes some former motorcycle producers of noted historical significance but which would today be classified as badge engineered or customisers. It includes both companies that are defunct, those that still exist but no longer make motorcycles, and some that were acquired by other companies.