In view of the unprecedented challenges faced by public sector organisations responding to emergencies and reducing disaster risks, this paper identifies some constraints that influence the effectiveness of disaster risk reduction delivery within communities. By using an institutional theory lens, the paper includes explanation on institutional dynamics within the disaster risk reduction organisational field domain and presents conceptual frameworks based on analyses of the Sendai Framework for Disaster Risk Reduction 2015–2030. The paper also presents initiatives and institutional arrangements that have shaped the resilience discourse within an Australian context. This work is valuable for academics and practitioners seeking to understand theoretical underpinnings of institutional dynamics.