The purpose of this study is to know firm size, firm age and environmental management have any impact on corporate performance. The authors analyze the behavior of Unilever companies operating in Indonesia through the perceptions of users of Unilever products in maintaining corporate performance. The research design consists of comprehensive literature review, using a questionnaire to get a data from 195 respondents that work in Unilever Indonesia and then processed by Software STATA to validating and reliability of data. By the framework model that authors have been run regression. The conclusions from the research are, there is positive impact between firm size, firm age and environmental management on corporate performance in Unilever company. The results of this study prove that the increasing firm size, firm age and environmental management will contribute to increased corporate management at a significant level of 10% in this study. as it is known that corporate performance is an important key for further business development in this company.