Objective – The purpose of this research is to determine the effect of good corporate governance (GCG) on Indonesia’s
SOEs and the influence of state ownership on company performance. Methodology/Technique – This study examines State Owned Enterprises in Indonesia that were listed on the Indonesia Stock Exchange between 2011 and 2015. Findings – The empirical results show that GCG and state ownership both have a positive influence on the company's financial performance (in this case, Return On Assets). However, the percentage of state ownership has a negative effect on the relationship between Good Corporate Governance and Return On Assets. Novelty – One agency cost is monitoring expenditure by the principal. Privatization is one way to improve the performance of SOEs. Privatization is believed to improve the performance of SOEs, as a result of increased supervision of the performance of SOEs in Indonesia. Type of Paper: Empirical.