This research aims to empirically prove some of the effects of size, tangibility, debt maturity, foreign ownership toward investment efficiency, and the effect of Moderation from foreign ownership toward investment efficiency. This research is quantitative. Data is sourced from the financial statements of manufacturing companies listed on the Indonesia Stock Exchange from 2016 - 2020, with as many as 15 samples. The data analysis used Eviews. The result of the research has shown that size significantly affects investment efficiency. Meanwhile, tangibility, debt maturity, and foreign ownership have no effect on investment efficiency.