OPEN DEI project with collaboration of EU-IoT project organized a co-design workshop on 18 May 2022 that aimed at targeting this topic by carrying out a first exercise of business model co-design with some H2020 projects that address the topic of digital platforms. The co-design exercise took place throughout three parallel sessions that each was focused on a specific domain namely manufacturing and agri-food, healthcare and energy. This report includes the information about the main methodology for business modelling which is applied during the workshop and the main findings of parallel sessions as well.