Hannover is cementing its reputation as a leading hub for plastics technology, driving forward innovations in recycling, material development, and sustainable production. As industries worldwide shift towards circular economies, Hannover’s research institutions and economic development initiatives are playing a crucial role in shaping the future of plastics. A key focus in Hannover’s plastics industry is the development of efficient, durable recycling solutions. Industry-related research at the Institute for Plastics and Recycling Technology (IKK) at Leibniz University Hannover is paving the way for sustainable practices in material reuse. The institute is dedicated to studying the entire lifecycle of both bio-based and conventional plastics—from material development and testing to innovative pre-treatment strategies and recycling optimization. The IKK’s technical center is equipped with modern laboratories, which allow for advanced research and industry collaboration. Its key areas of focus include Regranulation and Recompounding (high-quality recycling processes that enhance plastic waste reuse), process development (optimization and innovation of recycling techniques to improve efficiency), and recyclate analysis (detailed examination of recycled materials to ensure quality and performance standards are met). IKK’s findings are paving the road for the plastics industry as it navigates an increasingly stricter regulatory climate. The Hannover Region Economic Development Agency is actively supporting knowledge and technology transfer in the plastics industry. It provides guidance on innovation and investment projects while fostering partnerships between industry and research institutions. By working closely with IKK, the agency ensures that cutting-edge plastics technology solutions are effectively integrated into industrial applications. This collaboration is helping businesses adopt sustainable manufacturing practices, streamline their operations, and enhance the long-term viability of plastic-based industries. With the increasing demand for high-quality recyclates and more eco-friendly production methods, Hannover’s ecosystem is attracting both established corporations and innovative startups looking to drive change in the sector.