Gate 21 is a non-profit partner organization in Greater Copenhagen (90+ regional partner/members in Denmark) with a mission to gather municipalities, regions, businesses and knowledge institutions to develop and disseminate resource-efficient solutions that support green transformation and promote green growth.

ver the past ten years, has built a strong triple-helix organization and has become the common platform of municipalities, regions, companies and knowledge institutions for green solutions, green innovation and green growth in Greater Copenhagen.