At the conclusion of the RRIStart project, the RRIstarthack took place in Rome from 21 to 23 February 2024. During the initiative, 16 multidisciplinary teams with a total of 125 people (students, PhD students, young researchers) competed in defining innovative, sustainable and responsible solutions to challenges related to sustainable mobility, and sport and wellness. The RRIstarthack was organised by La Sapienza University, Lazio Innova-Regione Lazio with the involvement of Eni Joule, WyLab, WeSportUp and Asc27. Among the support activities offered to the 16 teams, there was also a workshop on the topic of responsibility and sustainability in start-ups, during which the main outputs of the project were presented.