This study examines the effect of balanced scorecard and knowledge management on employee performance and company performance of PT Semen Indonesia (Persero) Tbk. The balanced scorecard is measured from the perspectives of internal business processes, learning and growth, while knowledge management capability is measured from the knowledge infrastructure. Seven hypotheses are formulated related to the research objectives. This study uses a quantitative approach and is the type of research explanation. Data is collected using a survey questionnaire (online and writing), of 240 questionnaires (150 online and 90 written) were distributed, 101 questionnaires were returned. To test the hypothesis, testing the path analysis using SPSS version 20.00. Prior to the hypotheses testing, validity and reliability were examined. This study shows that the balanced scorecard has significant effect on the performance of the employee, but no significant effect on the company's performance. It is also found that knowledge management has significant influence on employee performance and company performance. Employee performance is also significantly influence the company's performance.