The need for easier and more affordable access to oxygen is still an obstacle in some parts of Indonesia, especially in the eastern part of Indonesia. A medical oxygen generator device can answer the problems related to the difficulty of accessing oxygen. There are frequent delays in the completion of the medical oxygen generator project, causing cost overruns and delays in providing first aid. The purpose of this study is to measure the performance of companies project management and provide suggestions for improvement strategies so that companies can improve their project performance. In this study, data collection was carried out by recapitulating some of the estimated project cost data, followed by compiling standard budgets for each project. Based on these two data, the company's project management performance is evaluated using Earned Value method with the CR as the indicator. The goal is to find the best strategies to improve the company's project management performance based on our results. The proposed measurements provide the stages that have poor performance and then provide solutions for the company for each stage that have poor performance.