The following paper deals with change management in small and medium-sized enterprises. Such enterprises are often neither able to define necessary changes nor to implement changes sustainably. This is caused by missing resources or the tools therefore are not available. Particularly small and medium-sized enterprises suffer from the general pressure of change through the economy. This qualitative research has been done by five interviews in five Austrian companies of different sizes, different industries and different economical situations. The purpose was to get an information about how changes are identified and how these were implemented on a sustainable basis. This paper has the aim to identify how potential change requirements in regards to the strategy, the organisation, the planning of these change requirements, the implementation and the effectiveness of the implementation is done in different companies. The paper comes up with different approaches to identify and implement changes on a sustainable basis. The tools refer to the targeted group of an organisation like individual (person), team (group of people) or organisation (company). As a last deliverable the paper consists of a proposal for a change management concept for small and medium-sized enterprises. Purpose This paper analyses the different tools and methods in small and medium-sized enterprises to identify and implement changes. From that perspective it was important to explore how these changes were identified, planned, implemented and whether the changes got measured to identify the effectiveness. Approach The research was conducted by qualitative interviews with five Austrian companies of different sizes, different industries and different economical situations to gather as many approaches as possible. Findings Apart from a litany of different tools to identify and implement changes it is remarkable that especially the successful companies from a financial point of view use a systematic and integrated approach. This means that they observe the strategic change requirements and develop a road map or deduce projects from these strategic change requirements. Value On the one hand different approaches to tackle any change management problems with an ide a how other companies take care of that but probably more important is the change management concept to implement changes on a sustainable basis. This concept is an output of the interviews and the literature review.