Success Academy Charter Schools is a leading charter school network in New York City, originally launched as Harlem Success Academy in 2006 by hedge fund investor Joel Greenblatt. Founded with the mission to close the achievement gap for low-income and minority students, the organization operates under the leadership of CEO Eva Moskowitz, a former New York City Council member. The network has grown to operate 47 schools across New York City and nearby areas, serving approximately 17,000-20,000 students. Success Academy emphasizes rigorous academics through a college-preparatory curriculum, extended school days, data-driven instruction, and a no-excuses approach to discipline, which has resulted in some of the highest standardized test scores among New York public schools. The network has been both lauded for its academic outcomes and criticized for operational practices including allegations of selective enrollment, high student suspension rates (particularly among students of color), and demanding environments contributing to high teacher attrition. A 2015 New York Times investigation highlighted controversial teaching methods such as public shaming of underperforming students. Despite controversies, the organization continues to expand while advocating for charter school policies and influencing education debates nationally. Financially supported by philanthropic donations and public funding per student, Success Academy maintains a non-profit structure while navigating ongoing legal and policy challenges.