The Polish Cluster of Composite Technologies (PKTK) is a national cluster that integrates enterprises, research institutions, and experts engaged in the development and application of advanced composite materials. Established to strengthen cooperation between industry and science, the cluster facilitates knowledge exchange, supports innovation, and enhances the competitiveness of the Polish composites sector. PKTK focuses on key application areas such as renewable energy, hydrogen technologies, aerospace, automotive, maritime, and construction. The cluster is involved in research and development projects, promotes sustainable solutions including bio-composites and circular economy approaches, and contributes to building resilient supply chains in advanced materials. Through joint initiatives and international cooperation, PKTK acts as a platform for connecting stakeholders and fostering the growth of the composites industry in Poland and abroad.