The quality of service we provide to our customers is all the more important as it often responds to a crisis situation. The expectations of our customers are therefore high, our challenge is to provide reliable and rapid technical assistance to meet their requirements. The dimension of "service" is the founding principle of our quality policy. Listening to the client and meeting their expectations must be felt as a strategic and vital necessity for all M3S staff. Quality is now clearly integrated into our management system, resolutely oriented towards efficiency, whose primary value is that of service. This value fits perfectly into our corporate culture, the driving force behind and mobilizing a quality system that has become the strategic management and vision tool for the M3S group.