Fiat Yamaha Team:
Rizla Suzuki MotoGP:
Tech 3 Yamaha:
Repsol Honda Team:
* expected to be Andrea Dovizioso
Ducati Marlboro Team:
Kawasaki Racing Team:
TBA* (currently Anthony West)
* Marco Melandri says he will join Kawasaki.
**A third Kawasaki is expected to join the 2009 grid.
San Carlo Honda Gresini:
TBA (currently Alex de Angelis)
TBA (currently Shinya Nakano)
TBA (currently Toni Elias)
TBA (currently Sylvain Guintoli)
LCR Honda MotoGP:
TBA (currently Randy de Puniet)
JiR Team Scot MotoGP:
TBA (currently Andrea Dovizioso)
* JiR and Team Scot intend to split into two separate Honda outfits for 2009.
Recent rumours suggest that a fifth Ducati, to be ridden by former title runner-up Sete Gibernau, could also appear next season.