The nature of knowledge sharing processes depends on cultural (Bureš, 2003) and structural factors. Important factors of organizational culture are organizational structure, leadership, process, structure, reward system, IT system and people. Motivation, trust and interaction are also important factors (Al-Alawi, Al-Marzooqi, & Mohammed, 2007). Knowledge sharing is facilitated by leaders who are able to reconcile centralized and shared leadership (Santos, Wane & Lopes, 2014). Leadership plays a strategic role in knowledge sharing and in merging knowledge management with the organizational targets (Kukko, 2013). According to Davenport and Prusak (1998), leaders guide organizations’ professional knowledge managers and lead the development of learning and knowledge strategies. In other words, leaders have a key role not only in the knowledge sharing culture but also in the retention of the organizal knowledge (Lin, Chang, & Tsai, 2016).