Glenbrook South Parents Association, a 501(c)(3) non-profit, seeks membership from the entire GBS parent community. The purpose of the organization is to serve as an educational and informational liaison between the school administration and parents. The Parents Association hosts general meetings and parent education events each year.  It also funds scholarships, coordinates staff appreciation activities, supports Titans Helping Titans, organizes Grad Night for Seniors, and provides other supports to students and staff at GBS.