The aim of this study is to examine the influence of organizational culture, transformational leadership and interpersonal communication on teachers' job satisfaction either individually or jointly. Variables of Organizational Culture, Transformational Leadership and Interpersonal Communication serve as independent variables while the dependent variable is Teacher's Job Satisfaction. The study was conducted on randomly selected 200 teachers of Private High School in the city of Bekasi, West Java, Indonesia. Using mix method, sequential explanatory design is applied where quantitative come first. The study both quantitatively and qualitatively reveals that there is a positive significant relationship among variables under the following distribution of coefficient of correlation: Organizational Culture to Teacher's Job Satisfaction = 0.507, Transformational Leadership to Teacher's Job Satisfaction = 0.241, Interpersonal Communication to Teacher's Job Satisfaction= 0.474 and when tested together it produces coefficient of correlation = 0.55 indicating the existence of other 45b% variables not including in the model affecting factors affecting Working Satisfaction within the private high school teachers' working environment.