One of the original 100 Change Agents in the world. He is internationally renowned thought leader in organization development and change. He has led transformation and change journeys in over a thousand organizations in every major industry in 44 countries. Their size ranges from a one-person corporation of a twice-winning Emmy awarded artist to a 750,000- employee corporation. In these transformation efforts, he applied Whole System Transformation, a modality that he coined and perfected over 50 years of practice. He has taught OD globally in 22 universities including the most recognized organization development and change program in the world - Pepperdine University in Los Angeles California.
Sullivan is considered as one of the pioneers in the redefining and expansion of Organization Development. He learned directly from the founders and has been active in his profession starting in 1962.
His significant publishing comprises hundreds of articles, chapters, and over 25 books, including his widely acclaimed book, Practicing Organization Development, now in its 20th year and fourth edition. As stated on the cover of the book, Practicing Organization Development builds on its reputation as the most practical, comprehensive, useful, and clearly written handbook on the topic of organization development. It is dubbed as the “bible” of OD.
Few have been producing extraordinary breakthrough results. Sullivan is known for "actually" transforming whole systems in a large group, engaging events as he trains internal change agents to lead sustainable and agile organizations.