Organizational commitment plays an important role on the success of business units. Many companies rely on their human resources and when some skilled employees leave an organization, there would be a chaos in some organizations especially in small business units. The proposed study of this paper gathers the necessary information from 200 employees who work for custom organization in Iran. The results of factor analysis have indicated there are four factors influencing organizational commitments. The first factor is associated with cultural factor, the second issue is related to human resource based factors while the third factor indicates the behavior based factors and finally empowering based factors are the last item. The ratio of Chi-Square/df is equal to 2.66, which is less than 3 and this validates the results. We have also used structural equation modeling and the results show that the third factor, behavior based components, is the most important factor followed by the second factor, human resource factor. In addition, the third important factor is cultural issues followed by empowering factors.