Clinical psychology in industry aims to provide psychological support to working individuals, helping them find meaning in their work and enabling them to continue working healthily. The activities of psychological professionals in industry need to approach both individuals and organizations, addressing not only personal consultations but also solving organizational issues and improving workplace environments. Psychological professionals in industry possess competencies in the areas of individual, organizational, and research domains. In the individual domain, competencies include assessments of individuals and consultations with related parties. In the organizational domain competencies include assessing organizational issues, intervening to improve workplace environments, and planning and implementing educational training. Collaboration with other professions and institutions is also crucial for psychological professionals in industry. Effective collaboration requires understanding the objectives, strategies, and plans of various organizational departments and understanding the perspectives of other professions. For instance, in workplace reintegration support, there are key points for collaboration at each stage. To further develop and deepen clinical psychology in industry, it will be necessary to integrate knowledge from not only industrial health and industrial stress research but also from industrial and organizational psychology.