This study aimed to validate previous studies’ five core competencies of PMO Managers. It describes the competencies of effective PMO Managers as evidence of PMO practices in companies. Researchers obtained data sources from five members of PMO Professional Indonesia (PMOPI) focused on the financial industry. This study uses a qualitative research approach, collecting the data using structured interviews with selected respondents. Certified experts have validated and calculated the percentage of occurrence of each core competency and the PMO management function. A final analysis of the data is conducted using NVIVO Software. The study has produced a percentage of the emergence of PMO managers’ competencies, especially in the financial industry, to validate the five core competencies from previous studies by specific dimensions. The analysis results of this validation, with an inter’, ’rater percentage of 95,31%, indicated that the data analyzed had high accuracy. This study reveals that business mainframe is a competency often applied in the financial industry PMO. The findings are 26,83%, significantly different from the results of other competencies. The Technical & Professional Specialty is 10,87%, Effective Intersocial Competencies is 15,85%, Organizational Stewardship is 10,98%, and Effective Personal Competencies is 3,05%. This study has provided new insight into PMO manager competencies which are required for PMO managers to perform their work effectively. This set of competencies is required by organizations that see the need to develop PMO managers’ capabilities in managing their projects.