The H2020 project UNITED aims to develop economically feasible offshore multi-use combinations for five pilots across European regional seas. The economic feasibility of multi-use combinations will be evaluated by a multi-criteria economic assessment framework. This report, developed under task 3.1 of UNITED, describes the current status of each pilot in terms of current activities, planned activities, their level of development, scale-up potential, perceived synergies and identifies potential sources of information that can inform economic analyses in the next phase of the project. This stock-taking exercise of currently available information and views will help identifying key issues and research questions that should be addressed in the economic analyses of multi-use combinations tested in the UNITED project. The report builds on the review of compiled available information from pilots’ background information in the proposal complemented by the results from a questionnaire that was filled out by each pilot.