In the Austro-Hungarian Monarchy, chambers of commerce and industry were initially established to advocate for the interests of merchants and industrialists and to foster economic development, but they were actively involved in various aspects of society. The significant influence of the Chamber on society stemmed largely from its strategic position within the institutional framework. Essentially, it occupied a unique space between public administration and civil society organizations, enabling both the state and local interest groups to voice their concerns. This study delves into the key issues surrounding power dynamics and advocacy arising from this dual role, using the Rijeka Chamber of Commerce and Industry as a case study.