A small group of small and medium-sized enterprises (SMEs) that grow fast over a short period of time, i.e., scalers, make an outsized contribution to job creation and economic growth. This paper provides a portrait of scalers in the Italian region of Trentino-Alto Adige/Südtirol, and its two autonomous provinces: Trentino and Bolzano-Bozen. The region hosts and attracts a dynamic population of scalers. Around one in nine SMEs in Trentino-Alto Adige/Südtirol is an employment scaler, and more than one in six is a turnover scaler. However, the contribution of the fastest-growing scalers is lower than in the rest of Centre and North Italy, which is in part due to the sectoral specialisation of scalers in the region.