The Chief of Staff Association (CSA) is the international professional body for chiefs of staff in leading corporations, governments, the military and diplomatic corps. The Chief of Staff Association (CSA) is the largest membership organisation for chiefs of staff in the world, with members occupying positions of influence in more than 45 countries. The CSA is the only professional association that can issue the industry-recognised Certified Chief of Staff™ and Master Chief of Staff™ credentials. CSA Ltd is the UK subsidiary of the Chief of Staff Association, a public benefit corporation chartered by the State of Delaware in the United States of America. Visit our website at www.csa.org to learn more.