Organizational culture is an important element for a company. Habits are created because of the communication that occurs between employees. Every employee should have the motivation to work. However, in reality, quite a few employees lose direction when doing their work. Therefore, the problem in this research is whether organizational culture and work motivation influence employee performance, either partially or simultaneously. This research aims to analyze the influence of organizational culture and work motivation on employee performance at NCTA partially and simultaneously. The population in this study were all NCTA employees, especially the general bureau, while the sample was obtained using the Slovin formula, 63 people. The data analysis method used is the descriptive percentage analysis method, multiple linear regression analysis method with partial test hypothesis testing (t), simultaneous test (F), and coefficient of determination. The conclusion obtained is that organizational culture and work motivation have a partial positive and significant influence on employee performance. Simultaneously, it can also be concluded that organizational culture and work motivation have a positive and significant influence on employee performance. This research also states that organizational culture and work motivation influence employee performance simultaneously by 52.3%.