The study association of the ESSB, Cedo Nulli, offers not only a membership for students but also a membership for alumni. This (paid) membership gives you access to (network) events organized by Cedo Nulli.
ESSB alumni are automatically also alumni of the Erasmus University. The EUR's alumni network consists of more than 160.000 alumni for whom events are organized on a regular basis. All alumni of the Erasmus University can also join the paid and external Erasmus Alumni Club.