Purpose: Due to globalization and the global mobility of workforce, working in multicultural environments is a new challenge for employees and managers. The aim of the paper is to analyze the social interactions in multicultural environments of multinational corporations (MNCs) as well as to propose a model of intercultural social interactions in MNCs' specifi c context. Design/methodology/approach: The grounded theory approach was applied to create a model of intercultural interactions in MNCs. The data was obtained during the qualitative research based on comparative case studies collected in 5 MNCs' subsidiaries. Findings: The proposed model refers to the following concepts: 1) Lazarus's transactional stress theory states that job demands may be assessed as hindrances or challenges. The specifi c job demands that aff ect intercultural interactions are multilingualism, cultural diversity, cross-cultural adjustment and team work. 2) Positive psychological capital and an individual's acquired resources are in relation with intercultural interactions. 3) According to Bandura's agentic perspective, individuals take an active role in shaping social interactions and work environment. 4) Being an agent relates to Spreitzer's thriving concept that can serve as a mechanism of relations between the interactions undertaken due to MNCs' specifi c job demands and their outcomes. Research limitations/implications: The qualitative methodology applied to the research does not allow for a broader generalization of the results. The outcomes of intercultural interactions depend mainly on how individuals assess their job demands in MNCs. Practical implications: Since the workplace in MNCs is abundant in learning opportunities, the managers of MNCs need to hire employees who exhibit needs for growth and development to boost thriving in their organizations. Additionally, these managers should search for employees with experience of multicultural settings and a signifi cant capacity of positive psychological capital,