Chiefs of staff are trusted advisors to the world’s most influential leaders. The Chief of Staff Association (CSA) is the professional association for chiefs of staff in leading corporations, governments and the military. The CSA provides world-class education, networking, and professional development, including executive education programmes at Oxford’s Saïd Business School and Harvard Business School. The CSA is the only professional association that can issue the industry-recognised Certified Chief of Staff® credential. Join us at COS25, our premier global conference, where chiefs of staff from around the world will gather to share insights, build connections, and shape the future of the profession. Learn more here: https://csa.org/cos25