This study aims to examine the effect of investment decisions, financial decisions, dividend policy and profitability, on firm value. The object of this research is manufacturing companies listed on the Indonesia Stock Exchange from 2014 to 2017. The sampling technique used in this study was purposive sampling and 145 research data were obtained. The analytical tool used in this study is multiple linear regression analysis through the SPSS program. The results of this study indicate that investment decisions, dividend policies, and profitability have a positive and significant effect on firm value and funding decisions have no effect on firm value.