A relatively new phenomenon across the globe, co-working space is a working environment, shared by professionals with similar community values, who work independently as well as collaboratively. Co-working space accommodates new working ways such as remote working and flexi-time. Co-working space also facilitates knowledge sharing - one of the most important components of knowledge management issues. The underlying research question of this preliminary qualitative research is: how knowledge sharing occurs in co-working spaces? By using semi-structured interviews with eight male and female entrepreneurs from small and medium enterprises who are users of two co-working spaces in Jakarta throughout March-April 2015, this writing captures these findings. Occurs informally and voluntarily, motivated by personal and business development, knowledge sharing amongst entrepreneurs in these co-working spaces involves donating and collecting tacit knowledge, shared around points of interaction such as pantry/kitchenette and coffee makers and during lunch and/or afternoon coffee breaks, and endorsed through community culture formally declared in membership agreement and promoted by co-working space hosts. Knowledge not shared in these co-working spaces is trade secret-related. Subjects also admit that they refrain from sharing knowledge to direct competitors. Knowledge sharing is also discouraged when the majority of available tables are dominated by certain company - resulting in hesitance to share knowledge. In conclusion, co-working space is worthy for further examination as a workplace setting supportive for knowledge sharing due to its accumulation of diverse valuable knowledge resource available at any time. These findings can be valuable not only to co-working space developers and users, but to knowledge management enthusiasts interested in informal and voluntary knowledge sharing behaviour, entrepreneurship advocates who focus on collaborative business development, industrial and organizational psychologists who zoom in into new working ways and their impacts on work behaviour, as well as urban space designers such as architects and interior designers. Future discussion of this paper includes possible behaviour modification interventions and identification of other psychological factors of knowledge sharing in co-working spaces to maintain and even promote this behaviour. Follow-up research can also include comparative studies: knowledge sharing between co-working spaces and more conventional, permanent work setting such as offices; also between those working as entrepreneurs and as employees of formal, hierarchical organizations.
