Designing a management system that integrates the three areas of quality, safety and the environment (QSE) is a fundamental challenge for any company concerned with meeting the expectations of all its stakeholders: customers, staff, shareholders but also its environment and society in general. While the integration of QSE management systems is now gaining increasing interest within the scientific community, empirical research on the integration of management systems at the level of small and medium-sized enterprises is curiously scarce. However, often faced with the inadequacy of their human and financial resources, SMEs, more than large companies, have every incentive to implement a IMS QSE in order to better structure themselves and be able to perpetuate their future. This paper studies the integrated management system Quality-Safety-Environment (IMS QSE) within the SME to highlight the specificities of this type of company as regards the integration strategy, the organization mode as well as the contributions of the IMS appreciated in relation to the satisfaction of the stakeholders.