GTWS - Serie invernale GT Team di corse
- AF Corse
- AKM Motorsport
- ART-Line
- Araújo Competição
- Auto Sport Racing
- BDR Competition by Grupo Prom
- BDR Competition by grupoprom
- DC Motorsport
- DL Racing
- Die Biermacher Racing
- Engstler Motorsport
- FK Performance Motorsport
- Forch Racing by Atlas Ward
- GT3 Poland
- Good Speed Racing
- Greystone GT
- Haupt Racing Team
- JVO-Racing
- Joos Sportwagentechnik
- Juta Racing
- Kessel Racing
- Konrad Motorsport
- LIQUI MOLY Team Engstler
- Laptime-Performance
- MS Racing
- MZR
- Mertel Motorsport
- NM Racing
- Olimp Racing
- Orange Racing by JMH
- PTT Racing
- Pellin Racing
- Plusline Motorsport
- Proton Huber Competition
- Racar Motorsport
- Razoon - Morethan Racing
- Reparto Corse
- Rinaldi Racing
- Rossocorsa Racing
- SPS automotive performance
- SR Motorsport by Schnitzelalm
- SSR Performance
- Schnitzelalm Racing
- Sunder Motorworks
- Team 52
- Team Joos by Twin Busch
- Team Race Car Events
- Uniq Racing
- Wileco Motorsport
- a-workx Motorsport
- Comtoyou Racing
- PROsport Racing
- Schubert Motorsport