Aşağıdaki listede uluslararası motosiklet üreticileri sıralanmıştır. Listede el yapımı motosiklet üreticileri dahil edilmemiş, seri üretim gerçekleştiren firmalar yer almaktadır.[1]
Üretime devam eden şirketler
Listede aktif olarak hem cadde hem yarış/off-road motosikletler üreten şirketler sıralanmıştır.
^abcThe Triumph brand has had two distinct eras, one as Triumph Engineering Company, then under BSA at Meriden and the recent one as Triumph Motorcycles at Hinckley, with ten-years between the two.
^"Norton Website". 5 Mart 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 2 Nisan 2016. The Norton company closed in the UK in 1976. The company reopened in 1995 in Portland, Oregon, United States manufacturing replacement parts and eventually new Norton models. The venture eventually required capital and was bought by Stuart Garner who intends to return production to the United Kingdom.
^ab"Vincent Motors". 15 Mart 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 2 Nisan 2016. In 1928, Phil Vincent bought HRD and changed the name to Vincent HRD. In 1949, Vincent HRD was renamed Vincent. Production of Vincent stopped in 1955. In 1994, Bernard Li acquired the rights to the Vincent trademark, and in 1996 formed Vincent Motors, USA. Vincent Motors, USA, made 5 prototype motorcycles in 2002. The engine used in these motorcycles has since gone out of production and Mr. Li has since died. It is therefore not likely that series production will begin.