With the advent of knowledge-intensive economies, plus the ever-accelerating development of Information and Communication Technologies (ICTs), organisational knowledge has become the key driver of an organisation’s value and ultimately, an important source of an organisation’s sustainable competitive edge. Thus, numerous organisations have started to invest heavily in establishing knowledge management systems (KMSs). Subsequently, they wish to access knowledge from individuals in order to enhance their acquisition of knowledge and ultimately transform this into organisational knowledge. Even though existing research studies have evidenced extensively the intrinsic and extrinsic motivators of individuals’ knowledge-sharing behaviour in organisations from diverse perspectives (e.g. organisational behaviour, sociology and psychology), individuals still seem inclined to hoard their knowledge, rather than share it with others in organisations. To this end, this research aims to investigate and identify essential elements related to individuals’ knowledge-sharing behaviour within the complex context of the virtual organisation of Taiwanese Non-governmental Organisations (NGOs), comprising the whole system of Taiwanese Farmers’ Associations, by integrating multilevel perspectives of individuals in organisations (the micro-level), workplace networks in organisations (the meso-level) and organisational culture (the macro-level).