The management system standards published by the International Organization for Standardization (ISO) contain requirements related to risk management activities. The objective of the current research is to identify the relevant risk management requirements and creating the integral risk assessment method in Quality Management System (QMS), Environmental Management System (EMS) and Information Security Management System (ISMS). In my research I prepared a risk management requirement matrix, which can help the organisations to understand the relevant requirements of the three examined standards. The developed integrated risk assessment method allows the application of a common risk assessment table concerning the three standards.