Albar
Apollon-Williams
Beck
Bemani
Bemani
Beutler
Blonell
Brun
Cheetah Racing Cars
Eggenberger
Emil Frey Racing
Felber
Franke
GreenGT
HMC
Italsuisse
Leblanc
Matech
Micro Mobility Systems
Minelli
Monteverdi
Picasso Automotive
Pich
Protoscar
Rebellion
Rikli Motorsport
Rinspeed
Sauber
Sportec
Status & Class
Vuković Motorsport
Wyder