The main research question in this dissertation is how to overcome deficit of capacity for governance development in Croatia and what role should public, economic and civil sector so as academic community have. For understanding problematic of governance development a theoretical framework and conceptual definition of governance development in companies and public administration is shown. While governance in companies is recognized as scientific discipline, governance in public administration is still „fighting“ for this status. Similarity between governance in companies and governance in public administration are expectations about efficiency of the process of satisfying the end user. In public administration, the end user is citizen who in democratic society has the right on equal quality of public service. Because of still insufficient connection and understanding regional, rural, urban, local and sustainable development, strategic planning and public policy, so as innovative approaches in design and implementation of public policy Triple Helix and Quadruple Helix model is defined. Comparison model of strategic planning and governance development in Slovenia, Poland and Croatia showed that Poland completely established integrated system of strategic planning and governance development. Slovenia did it partially, but Croatia is still without system of strategic planning and governance development. Confirmation that Croatia have serious problem with governance development could be found in governance indicators in World governance indicators (WGI) and Sustainable governance indicators (SGI). To further explore relation and cooperation between Quadruple Helix participants – public, economic and civil sector so as academic community in Croatia, empirical research of strategical planning on the nationally levels in Croatia was conducted. Comparison between ideal model cooperation Quadruple Helix participants (Letzkowitz, Leydesdorff, 2000) and cooperation which is accomplished in Croatia showed that Croatia is far away from ideal model. The main recommendations for overcoming deficit of governance capacity are related on necessary positioning strategical planning as tool for governance development and increasing level of responsibility public sector. National level should give legislative and institutional framework of strategical planning and governance development. Subnational level should take initiative in application innovative Quadruple Helix governance models trough creating platform for activating, gathering, and mutual cooperation between representatives economic and civil sector, academic community so as their active participation in preparation and implementation of strategic documents or broadly in the process of governance on regional and local development. It's necessary to start making long term national strategical document which will show the main development directions of Croatia by 2050. All Quadruple Helix participants: public, economic and civil sector and academic community are responsible for governance development in Croatia. Special task has academic community because the voice of knowledge should „calm“ that part of „political elite“ which often lack development visions, the desire to contribute to the common good and ability for governance development on all levels in Croatia. Besides introductory and concluding, the dissertation has five chapters: Theoretical framework and conceptual definition of governance development, Governance development in Croatia, Governance indicators, Governance and strategical planning in Croatia so as Quadruple Helix model of strategical planning as a precondition for effective governance development in Croatia.