The purpose of the study is to examine the individual performance of the corporate members with the independent variable of organizational culture types (relational culture, innovation culture, hierarchical culture, task culture) and the mediator variable of communication by validating the regulation effect of organizational trust between the independent and dependent variables. For analysis, regression analysis is performed the study examined the dataset from the 2020 Human Capital Corporate Panel (HCCP) published by the Korea Research Institute for Vocational Education and Training that consist of a total target data of 510 corporations and 8,611 employees. The followings are the result of the research. Firstly, among the types of organizational culture, relational culture, innovation culture, and task culture have a statistically significant positive effect whereas hierarchical culture has a negative effect on communication. Secondly, relational culture, innovation culture, and task culture each had a statistically significant positive effect on individual performance, while hierarchical culture has a negative effect. Third, the mediated effect of communication has been found in all types of organizational culture except for hierarchical culture between each organizational culture type and individual performance. Fourth, it has been found that organizational trust regulates the relationship between individual performance and relational/innovation culture among organizational culture types. Hence, the research suggests that it is necessary for the corporate to establish the relational culture, innovation culture, and task culture as well as to come up with measures that can improve individual performance based on horizontal and harmonious communication and organizational trust.