Tujuan penelitian ini dilakukan untuk mengetahui faktor-faktor yang dapat mempengaruhi nilai perusahaan pada perusahaan manufaktur periode 2018-2020. Objek penelitian menggunakan 188 sampel data perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2018-2020. Data diolah dengan uji asumsi normalitas, heteroskedastisitas, multikolinearitas, autokorelasi dan uji regresi berganda. Pengukuran dilakukan dengan menggunakan rasio Tobin’s q sebagai proksi nilai perusahaan, institutional ownership, leverage sebagai proksi funding policy, R&D sebagai proksi investment opportunity set (IOS), ROE sebagai proksi financial performance dan NPM sebagai proksi company profit, dengan melibatkan firm size dan firm age sebagai variabel kontrol. Hasil penelitian membuktikan bahwa funding policy, investment opportunity set (IOS), financial performance, dan company profit berpengaruh positif dan signifikan terhadap nilai perusahaan dan institutional ownership berpengaruh negatif dan signifikan terhadap nilai perusahaan. / The purpose of this study was conducted to determine the factors that can affect the firm value in manufacturing companies for 2018-2020 period. The research object uses 188 data samples of manufacturing companies listed on the Indonesia Stock Exchange for the 2018-2020 period. The data were processed using the assumption of normality, heteroscedasticity, multicollinearity, autocorrelation and multiple regression tests. The measurement is carried out using the Tobin's q ratio as a proxy for firm value, institutional ownership, leverage as a proxy for funding policy, R&D as a proxy for investment opportunity set (IOS), ROE as a proxy for financial performance and NPM as a proxy for company profit, involving firm size and firm age as control variables. The results of the study prove that funding policy, investment opportunity set (IOS), financial performance, and company profit have a positive and significant effect on firm value and institutional ownership has a negative and significant effect on firm value.