Team 2220 does not have an official alumni associating, but we do maintain strong relations with our alumni through weekly newsletters during build season and inviting alumni to help both our team and other teams during and for a couple weeks after kickoff. We've also had alumni in the professional world come back and give us demonstrations of what they're working on (one of these was when I was a sophomore-- a team graduate who was working on creating small commercial quadcopters who talked about engineering design process. Very cool guy).
We also periodically send out surveys to alumni to ask about their careers and college majors. We never really voluntarily let alumni leave the team
