By clarifying the mechanism between organisational social capital and social innovativeness of Australian social enterprises, this thesis model contributes to a richer understanding of the organisational social capital theory of innovativeness from a strategic perspective. Further, the rigorous demonstration of the mechanism of developing innovativeness extends the organisational social capital and innovativeness relationship into a new, previously overlooked application area, the social enterprise context. This theory testing at the intersection expands the boundaries of underpinning conceptual domains.