Academic

　　Academic Peer Tutors,Astronomy Club,Book Club,Business Club,Chess Club,Classics Club　Entrepreneurship Club,Fair Trade Club,Investment Club,Italian Club,Math Institute,Model United Nations,Speech & Debate Club,Robotics.,

　　Arts

　　Royal Blues (female a cappella group),Chamber Players,Choir,Electronic Arts /Computer Science Club,Foreign Film Club,Jazz Band,Metropolitan Opera Trip,Marksmen (male a cappella group),Photography Club,Athletic,Cornhole Club,Outdoor Club,Ping Pong Club,Skiing & Snowboarding Club,Volleyball Club

　　Appointed Leadership Opportunities

　　Admission Prefects,Class Agents,Communications Prefects,Development Prefects,Dining Hall Prefects,House Prefects,Library Prefects,Orientation Team,Peer Discussion Leaders,Student GovernmentMonitors*,Student Activities Committee*,Student Disciplinary Committee*,Student Voice Committee*,Technology Prefects,*elected positions

　　Community Service

　　Brantwood Camp,Crafts for a Cause Club,St. Mark’s Society,Marlborough Boys & Girls Club,Lutheran Social Services Programs,Orphanage Outreach,Our Father’s Table

　　Political Organizations

　　Amnesty International,Animal RightsPETA,Green TeamEnvironmental,Human Rights Club,Pizza & Politics,Young Democrat Club,Young Republican Club

　　Religious & Cultural

　　Acolytes,Asian Students Association,AWAKE,Christian StudentsGod Squad,Gender and Sexuality Alliance,International Club,Jewish StudentsJew Crew,Men are not Born, They’re Made,SHADES,Southborough Society

　　School Media

　　The LionYearbook,The St. MarkerNewspaper,The VindexMagazine,WSMR (Students’ Radio Station)

　　Miscellaneous

　　Admission Tour Guides,Disney Club,Dr. Who Club,Harry Potter Club