EN
This paper is to present results from the empirical research conducted in a financial institution in Poland. The study was to confront the proposed theoretical model with real employees’ behaviours and to explore complex issues connected with corporate social capital. The aim of the research was to investigate the influence of bonding and bridging social capital on employees’ and teams’ performance, moderated by type of the tasks. Additionally, possible interaction between two types of social capital was taken under the study. Main findings of the research were to support some of the thesis, but there are further researches required in order to verify the theoretical model proposed.