The main purpose of this research was to examine the influence of management capabilities on the relationship between organisational resources and organisational performance of International Organisation for Standardization (ISO) certified organisations in Kenya. The Total Quality Management (TQM) and interest theories were the basis of this study. A cross-sectional research survey design was adopted. Primary data was collected from a sample of 282 ISO certified organisations by use of a questionnaire, and secondary data was obtained from financial statements of 27 ISO certified organizations sampled. Descriptive statistics was used to analyze proportions of the variables and multiple regression model was used to estimate the effect of organisational resources on the performance of ISO certified organizations. The findings show that abundant organisational resources reduce performance. The findings of this research revealed that there was a partial intervening effect of management capabilities on the relationship between organisational resources and organisational performance of ISO certified organisations in Kenya. Furthermore, when organisational resources and management capabilities were examined individually, their statistical significances tend to reduce in their relationships with organisational performance. Therefore, this study recommends that there is need for the management of ISO certified organisations in Kenya to improve on their management capabilities as the study found that there was a positive relationship between management capabilities and performance of ISO certified organisations in Kenya.
