The aim of the project is to help small and medium-sized enterprises with green and circular business development. The goal is for approx. 100 companies to have a circular potential assessment, of which 70-90 companies develop green and circular business models that can lead to energy and resource efficiency, improved competitiveness and growth potential. Small and medium-sized enterprises with potential and motivation for energy and resource efficiency and circular economy can participate, but special tracks have been developed for companies in the construction and experience industry with the participation of strong industry actors. The project offers two possible business processes that depend on potentials and motivation for business development. Through intensive consultancy, 40 % of companies will develop a new business model based on circular principles focusing on value chain cooperation (circular business model). 60 % of the companies will optimise their business model (theme-specific business model) through networked processes within specific themes such as food waste, green logistics, environmentally-optimised packaging. All companies will be offered an energy check and a potential assessment. The development of the business models takes place with the assistance of consultants and is supported by the project’s partners, among other things through development workshops and theme-specific workshops and initiatives. Companies have the opportunity to seek investment support for implementing the green business model. Gate 21 is carrying out the project together with municipalities, industry organisations, knowledge partners and energy actors. The project partners have a high level of contact and knowledge of the companies and are partly professionally strong in specific areas of the green business model. There will be continuous and structured learning collection in the project with a focus on spreading and anchoring the efforts of the companies and project partners after the project period. The project also receives broad support from SME organisations, industry actors, value chain actors, additional municipalities and large companies that can support the diversification and anchoring of the project. The effects are quantified in relation to CO2, energy and resource efficiency improvements as well as qualitatively through learning and anchoring analysis at companies and partners.