This document summarizes the goals, methods, findings and best practices of an EU project on promoting women in leadership. The project analyzed representation of women in managerial positions across several European countries over time, reviewed literature on regulatory and industry initiatives, and interviewed companies to identify best practices. Key findings include the generally low representation of women in middle to top management. Regulatory approaches varied across countries from soft to hard quotas. Best practices identified from case studies of international companies focused on commitment from top leadership, flexible work policies, mentoring programs, and business rationales for diversity.