This paper is about Quality management practises in SME´s and how are impacting to enterprise developments and stability. The research sample was compounded from 341 European SME companies, based on surveys and personal interviews. Research was oriented on understanding consequences between enterprises management system, Quality management system, developing process maturity and enterprise stability. The aim of this research was defined key drivers of Quality management systems for SME, its implementation and developing. This empirical research findings should be used for SME management and are also opening questions for future research activities.