Who is The National Society of Leadership and Success? The NSLS is the nation's largest leadership honor society. Students are selected by their college for membership based on either academic standing or leadership potential. Candidacy is a nationally recognized achievement of honorable distinction. With 680 chapters, the NSLS currently has 1,033,034 members nationwide. In addition to honorable distinction, the NSLS provides a step-by-step program for members to build their leadership skills through participation at their campus or online. Upon completion of the program, members receive their leadership certificate and take their place among the top student leaders at their campus and across the country.