List of motorcycle manufacturers

• Aprilia (includes the Moto-Guzzi and Laverda brands) Italy
• BMW Germany
• Benelli Italy
• Buell[?] USA (a subsidiary company of Harley-Davidson)
• Cagiva[?] Italy
• Ducati Italy
• Harley-Davidson USA
• Honda Japan
• Indian USA
• Kawasaki Japan
• KTM Austria
• Laverda[?]
• Moto Guzzi[?] Italy
• MuZ (or/former MZ) Germany
• MV Agusta[?] Italy
• Royal Enfield[?] India
• Sachs[?] Germany
• Suzuki Japan
• Triumph¹ UK
• Yamaha Japan

Motorcycle manufacturers no longer in production:

• AJS[?]
• Ariel
• BSA
• Bimota[?] Italy
• Brough[?]
• IMZ-Ural
• Matchless[?]
• Nimbus
• Norton[?] UK
• Rudge[?]
• Triumph¹
• Velocette[?]
• Vincent[?]

1. The Triumph brand has existed in two distinct eras, one at Meriden and one at Hinckley, with a ten-year hiatus between the two.