ABSTRACT Organizational commitment is a state in which employees take sides with the organization. High organizational commitment of employees can support the achievement of organizational goals. This study aims to determine the influence of organizational culture on organizational commitment, organizational culture to job satisfaction, job satisfaction to organizational commitment, and organizational culture to organizational commitment through mediation job satisfaction. This research was conducted at PT. Bening Big Tree Farms in 2017 with a sample of all employees who numbered 80 respondents. Data collection method used is questionnaire method and data analysis technique using Partial Least Square Test (PLS). The result of the research shows that organizational culture has positive effect on organizational commitment, organizational culture has positive effect on job satisfaction, job satisfaction has positive effect on organizational commitment, and job satisfaction is able to mediate the influence of organizational culture on organizational commitment. Organizational commitment can be enhanced by maintaining employee job satisfaction, increasing collective commitment, clarifying dismissal laws, procedures, and policies and paying attention to employee salaries. Keyword : organizational culture, organizational commitments, job satisfaction.