Purpose - This research will attempt to investigate the critical factors that affect the customer satisfaction for the Lebanese telecom service providers market. Design/methodology/approach - The study is based on a positivism epistemology, objectivist ontology, and deductive approach. A quantitative self-administered questionnaire is conducted by random people that use the Mobile Services from all ages all over Lebanon. Findings - The quantitative findings of this study showed that there are four critical factors that mostly explain the concept of customer satisfaction for the Lebanese telecom ...