The aim of this research is to understand the role of knowledge-based companies in the social development of Iran. One of the important concepts in knowledge-based companies is social development because knowledge creation involves social, participatory and cognitive processes of individuals. Social development in this context includes social capital, human identity, communicative rationality, trust, and being human, and its components around coherence and unity have acquired a certain identity, relative independence and internal logic. The research method is qualitative and grounded theory (Strauss and Corbin). This research is an applied research type because it is carried out with the aim of practical application of knowledge and application of the results of the findings to answer the questions raised in knowledge-based companies located in the Pardis Technology Park. For this purpose, through purposeful sampling, information from 20 managers, vice presidents, officials, and experts of knowledge-based companies located in Pardis Technology Park was collected and analyzed through semi-structured interviews, and a paradigmatic model of recognizing the role of knowledge-based companies in Iran's social development was designed. The categories derived from the paradigm model include causal conditions, contextual conditions, intervening conditions, the core phenomenon, strategies, and consequences. The research findings show that knowledge-based companies can lead to the development of active NGO groups, the enhancement of the entrepreneurial role of national knowledge-based companies in the field of social development, the strengthening of social development institutions in cyberspace, and the improvement of social literacy through the development of the institutional space of libraries, schools,