Denys Yuriyovych Starkov
- PhD in Psychology (Medical Psychology), Supervisor of the Ukrainian Union of Psychotherapists, Certified Psychotherapist in Transactional Analysis (CTA-p-EATA, European Association for Transactional Analysis) and Addiction Psychotherapy (Ukrainian Union of Psychotherapists), Master of Social Work;
- research Fellow at the H.S. Kostiuk Institute of Psychology of the National Academy of Educational Sciences of Ukraine, President and Training Trainer at the Ukrainian Institute of Practical Addictology, Training Trainer at the Ukrainian Institute of Addiction Psychotherapy;
- founder and Honorary Member of the Ukrainian Transactional Analysis Community, Founder and Former Moderator of the "Addictology" Division of the National Psychological Association, Member of the Ukrainian Union of Psychotherapists, the National Psychological Association, and the American Psychological Association.