The Institute of Organizational Development (IOD) is a global non-profit focused on advancing the field of OD. It offers various certification programs in areas like OD, coaching, and leadership development. Over 2,500 professionals have participated in IOD's online and in-person training programs. IOD also holds an annual conference to share best practices. The organization was founded in 2002 by Nancy Zentis and has centers in Africa, Asia, the Caribbean, Middle East, and North America.