The northern growth zone is the cooperation network of 13 cities and six regional councils in the Southern Finland. One of the most dynamic industrial clusters in the zone is currently a maritime cluster, which has increased its turnover substantially in recent years and has risen among key employers, especially in Southwest Finland. MDI is involved in a study co-ordinated by the Turku School of Economics, which aims to outline the network conditions defining the maritime cluster of the North Growth Zone and to analyse the interaction and interdependencies between actors. On the basis of the local network analysis, recommendations for development are developed to deepen the cooperation of the zone. The review of the project will focus more specifically on the business, university and regional developer networks as well as the interconnections between them in research and business co-operation. The role of MDI is, in particular, an analysis of the regional developer network. This study strengthens the knowledge base and thus enhances the development of the maritime cluster.