Glenbrook North High School is a learning community dedicated to students and committed to quality of thought, word, and deed. instagram 📷: @glenbrooknorth The GBN Booster Club is the sole fundraising group that benefits the athletic programs at GBN. GLENBROOK NORTH BOOSTER CLUB, INC. (GBN BOOSTER CLUB) IS THE SOLE FUNDRAISING GROUP SUPPORTING THE GLENBROOK NORTH HIGH SCHOOL (GBN) ATHLETIC DEPARTMENT. TOGETHER WITH THE ATHLETIC DIRECTOR AND ASSISTANT ATHLETIC DIRECTORS, THEY PROMOTE SCHOOL SPIRIT AND FUND ATHLETIC PROGRAMS, FACILITIES AND EQUIPMENT BEYOND THE DEPARTMENT'S ANNUAL BUDGET. THE GBN BOOSTER CLUB SUPPORTS ALL GBN ATHLETIC TEAMS.