The main objective of this Project was to establish if a relation between leadership styles and Occupational Health and Safety Management System implementation, in a group of companies of public sector in Colombia. For this purpose, leadership styles, occupational accidents characteristics, and Occupational Health and Safety Management System implementation level were described and identified (period 2014 – 2017). For the development of this study data reported by Federation of Colombian Insurers and Direction of Labor Risk of the Ministry of Labor was collected and analyzed, and indicators of occupational accidents in the economic sector of government management were determinated. After this, the Multifactor Leadership Questionnaire (MLQ), and the established questionnaire in Resolution 1111 of 2017, which validates compliance of minimum standards of Occupational Health and Safety Management System for Colombian companies, were applied to responsibles for occupational safety and health in the studied companies and their support staff. This information was corroborated with a semi-structured interview for each one of the responsible. This study was focused in four companies of government industry, considered important in economic, politic, and social country development. As a result, it was concluded that transformational and transactional leadership styles are positively related with optimal management in an occupational health and safety management system, while corrective / avoiding or laissez faire styles are not related with optimal implementation of this system. However, from leader´s perspective, transactional leadership has higher correlation style, while followers consider that transformational leadership has a higher influence in the implementation of the system.
