In recent years, Startup Studios and Venture Builders (SS/VB) have established themselves as a relevant model within entrepreneurial ecosystems, introducing a systematic and parallel approach to new business creation. Unlike traditional support actors, SS/VBs act as founders or co-founders, providing ongoing operational and strategic support. Despite their growing popularity, academic research on this model remains limited, especially in the Italian context. This thesis aims to fill this gap by providing one of the first comprehensive, data-driven analyses of the Italian Startup Studio and Venture Builder ecosystems. The study combines a literature review with an empirical investigation based on a national population of 56 active SS/VBs and a sample of 20 respondents.