The paper presents a conceptual model for assessing the maturity of a Corporate Performance Management (CPM) in an organization. The CPM maturity development process was studied in five case companies where the author participated into CPM development projects in various consultation roles. Constructive and action-oriented research approaches were used with different methods for data collection and analysis. Through a literature study and the development process in each company, the author has made observations, and has identified 16 key components that can be used to assess the maturity of the CPM. The findings of this study further extend the CPM research by providing a deeper understanding about the process, components, and levels of CPM...