Given a well-established literature on internationalization processes and its main impacts on companies’ performance (Begeny, 2018; BuA¾avaitA— et al., 2019), it is worth examining how internationalization affects companies, driven by innovation at three different levels (individual, team and organizational) which is anchored in three main pillars: effectiveness, creativity and efficiency. The first pillar is related to strategic decision-making and business intelligence (along with data collection and analysis; setting efficiency criteria, strategic goals and outputs, as well as the tactics for each criteria). The second pillar covers a set of internationalization-related aspects, such as creative ideas generation, marketing and communications strategies, HR and RD while the third pillar is liaised with monitoring and execution of innovative activities. In line with studies with regard to innovation processes (Szopik-DepczyA„ska, 2015; Gries et al., 2017; Von Schomberg and Blok, 2018), the present paper continues examining the innovation performance; however, the main focus is on team innovation performance or the ways of unlocking the internationalization potential within team innovation processes via a set of aspects, such as effective decision-making, creative and divergent thinking, and efficient execution in teams. In light of the emergence of modern technology, employees of Lithuanian high-tech companies were selected for a quantitative survey, while scrutinizing the liaison between team internationalization and innovation commercialization success. Having the primary quantitative data (related to internationalization level, creative thinking, innovation performance in high-tech respondents’ teams) collected and analysed, further on, the innovation performance improvement suggestions are provided for the leaders of high-tech international teams.