Although there is widespread recognition that strong leadership is key in these challenging times, many companies provide only the tip of the iceberg of leadership development support. This article is a resource for high-powered leadership development systems that will have an impact on performance. Four topics are discussed: (1) models, (2) investment and results, (3) critical success factors, and (4) case studies of how the 3M Company and HealthPartners develop high-performance leaders. Studies that quantity the effect of leadership development on performance are noted. Five critical success factors are described, and examples from leadership development benchmark organizations such as General Electric and Reell Precision Manufacturing are discussed.