Purpose: The purpose of this study is to explore the influence of perceived organizational support on dimensions of a learning organization among employees of small- and medium-sized enterprises (SMEs) of Nowshahr in Iran. Design/methodology/approach: This paper used an empirical research design by the questionnaire survey method to test the research hypotheses. Statistical population of this research included employees of SMEs of Nowshahr in Iran. A random sample of 950 employees was asked to respond to questionnaires from which 336 were valid. Structural equation modeling was used to explore the influence of perceived organizational support on dimensions of a learning organization. Findings: The findings showed that perceived organizational support had a strong effect on the learning organization. In addition, perceived organizational support had effect on continuous learning, dialogue and inquiry, team learning, embedded system, empowerment, system connection and strategic leadership. In general, all hypotheses are statistically supported. Originality/value: This research may be one of the first papers exploring the influence of perceived organizational support on dimensions of the learning organization and offers a foundation for future organizational research.