It operates regional transport on a network of 658 km (409 mi)[1] belonging to SBB CFF FFS, with the exception of the route Wil–Weinfelden–Konstanz, which is only maintained by the latter[2] and except tracks in Austria and Germany. As of 2022,[1] the company owns 110 Stadler GTWEMUs and carries 25.8 million passengers a year. The fleet will be renewed with Stadler Flirt Evo trainsets from 2026 onwards.[3]
The acronym Thurbo (pronounced as Tour-bo in German) is derived from the river Thur (or the canton of Thurgau, respectively) and the first two letters of Bodensee (German name for Lake Constance), probably on the basis of the homophoneturbo.
Starting in 2026, the current fleet will be replaced stepwise with Stadler FLIRT Evo trainsets as part of a large order by SBB, Thurbo and RegionAlps.[3]