Green leadership, as a new management approach, emphasizes environmental protection and sustainable development in organizations and plays an important role in promoting social responsibility and improving organizational performance. This research aims to design a green leadership model for private companies and identify indicators that affect its success. The present research is descriptive-applied and has employed a mixed-methods approach. The statistical population comprises managers and experts from private companies active in different fields, of which 27 were selected via purposive sampling. Data were collected through a researcher-made questionnaire and semi-structured interviews. The validity and reliability of the tools were confirmed using standard methods. Data analysis was performed using statistical software and content analysis methods. The research findings show that the organization's environmental approach and environmental strategies, as key areas of green leadership, provide a suitable platform for creating a green organizational culture and environmental empowerment. Also, dimensions of green leadership, such as health-supportive leadership and human resource development, play an important role in improving employee well-being and health. Ultimately, this structure promotes organizational performance, social responsibility, and sustainable social health, serving as a suitable guide for private company managers to develop green leadership and achieve sustainability goals.