An American systems psychologist, organizational consultant, and clinical researcher, Dr. Kantor was the founder of three research and training institutes, the author of numerous books and articles, and the inventor of a series of psychometric instruments that provide insight into individual and group behaviors. His groundbreaking empirical research revealed a fundamental structure to all communication, known as Kantor Structural Dynamics, providing solutions to the most common communication challenges experienced in human systems.

David taught and trained thousands of students at institutions including Harvard University, Harvard Medical School, Tufts University School of Medicine, Northeastern University, the Boston Family Institute, the Family Institute of Cambridge, and was also the recipient of multiple grants from the National Institute of Mental Health (NIMH).