Employee performance is very important for the success of a company as a whole. The purpose of this study was to analyze and examine the effect of organizational commitment and work group cohesiveness on job satisfaction, as well as the influence of organizational commitment, work group cohesiveness, and job satisfaction on employee performance. This research was conducted by distributing questionnaires to 93 sewing operators in garment companies with a service life of 5 years or more. Data analysis is done by regression. Based on the results of the analysis there is a positive relationship between variables. There is a positive and significant influence between organizational commitment to job satisfaction with a significance value of 0.047. There is a positive and significant influence between work group cohesiveness on job satisfaction with a significance value of 0,000. Organizational commitment on employee performance with a significance value of 0.018. Cohesiveness of the work group on employee performance with a significance value of 0,000. Job satisfaction on employee performance with a significance value of 0.001. In this study it was proved that if organizational commitment and cohesiveness of work groups were high, job satisfaction was also high. Employee performance can be improved by increasing organizational commitment, job satisfaction, and cohesiveness of work groups.