The primary objective of this study is to evaluate and compare the efficiency of 40 tourism companies operating in Fars Province using Data Envelopment Analysis (DEA) and its extended model, DEA-R. Two cost-related indicators, personnel expenses and total costs, were considered as inputs, while customer satisfaction and company revenue were selected as output criteria. The classical DEA model and the DEA-R model were applied to calculate the relative efficiency of each company. The results indicate that six companies achieved full efficiency (Score of 1), and the average efficiency scores across both models were very similar. The slight differences between the two models suggest that DEA-R improves the accuracy of evaluations by accounting for more detailed aspects while maintaining the overall structure of DEA results. This study can assist tourism company managers in identifying inefficiencies and optimizing resource allocation.