The main purpose of this document is to show the composition and characteristics of different types of existing and emerging stakeholders in the ERA_FABRIC project partner regions within the 3 thematic domains addressed by the project: Sustainable manufacturing, Bio-based circular economy and Clean renewable energy. In addition to the mapping of existing stakeholders, an in-depth needs analysis was performed in order to identify current obstacles for the collaboration between different stakeholders within and among the regions. Furthermore, suggestions for improvement of the collaborations and skills needed to support existing ones and establish new ones were also identified. This mapping document will serve as a pool for the creation of the ERA FABRIC thematic working groups which, during the project duration, are expected to provide an overview on the forms of regional collaborations on the development of knowledge & innovation, obstacles hindering such cooperation, suggestions for the improvement and what is needed, in a form of institutionalized incentives and policies, to enhance quality of regional knowledge and innovation ecosystems.