Kiwanis International offers three clubs for adults: Kiwanis, Aktion Cluband Circle K International. Kiwanis clubs serve their communities by sponsoring 150,000 service projects each year. Aktion Club is the only community service club for adults living with disabilities. It provides members opportunities to become integrated into their communities while developing initiative and leadership skills. CKI is a university service organization with clubs on 500 campuses.
Key Club, the oldest and largest service organization for teens, teaches leadership through service to others. Builders Club for adolescents provides students with opportunities to develop leadership, improve self-esteem, increase civic engagement and learn life skills through service. Kiwanis Kids for elementary students provides students with opportunities to work together on service projects, develop leadership potential and create strong moral character.