This research aims at investigating the effect of sales culture on entrepreneurial marketing through the mediating role of internal marketing. The present study is practical in its objective and employs a descriptive-surveillance approach for data collection. The statistical population of the research is 120 workers of Shafiq Industrial and Commercial Group of Isfahan. Data was collected via a questionnaire. The questionnaire's validity was assessed and validated by content validity and reliability measures, namely Cronbach's alpha coefficient and composite reliability. The study hypotheses were tested using the approach of structural equation modeling and the Smart PLS 3.0 software. The findings indicated that the presence of a sales culture has a favorable and significant effect on both entrepreneurial marketing and internal marketing. Furthermore, the findings indicated that internal marketing exerts a favorable and substantial impact on entrepreneurial marketing. Finally, the results of analyzing the mediating function of internal marketing also demonstrated that internal marketing has an influence on the link between sales culture and entrepreneurial marketing. Overall, it can be stated that manufacturing industries should strive to establish a more favorable position in light of their significant role in the economy and their existing competitive advantage.
