The rise of entrepreneurial support structures over the past few years offers student entrepreneurs a wide variety of opportunities for exchanges, meetings, and support. However, one downside is the growing complexity of the entrepreneurial ecosystem, as we can see in the case of Toulouse. This increases the competitive dynamics between support structures. Another element we can observe is information asymmetry and capture effects for student entrepreneurs. The complex entrepreneurial ecosystem thus has the effect of reducing their mobility capacity and access to resources, despite its importance for the development of projects. Consequently, understanding the mobility of student entrepreneurs is key for lecturers or members of special services dedicated to supporting students’ projects.