This study aims to analyze the effect of sales growth, leverage, and investment opportunity set on corporate value. Corporate value is a measure of how the sustainability of an entity is going, the high corporate value indicates that the company is in the good condition to carry out operations in the future and that can attract investors to make transactions on the entity's shares. Therefore it is very important for investors to know what factors affect the corporate value, and that they do not take the wrong steps in making transactions on the stock exchange. Using multiple regression analysis with the STATA software on mining companies listed on the Indonesia Stock Exchange, this study finds the effect of sales growth and investment opportunity set on corporate value, while leverage has no effect on corporate value. These results explain that investors give a positive reaction to the company's performance in increasing its turnover and investment opportunity set so that it has an impact on corporate value in the stock market. These results have implications for management to work hard in increasing sales to increase corporate value.