Europe is on its way to generate and make use of more data than ever. The project PrepDSpace4Mobility aims at contributing to the development of the common European mobility data space by supporting the creation of a technical infrastructure that will facilitate easy, cross-border access to key data for both passengers and freight. Given the enormous potential of data and digital technologies, the project is expected to have a positive impact on European competitiveness, society, and the environment. Workshop gathered suppliers and users of data, relevant research institutes, associations, initiatives, politics, as well as technology and service providers in data spaces to ensure appropriate representation. We had successful workshop, and greatly appreciate your practical field expertise and interactive contributions. Check our Website and follow us on Linkedin. Project PrepDSpace4Mobility is Funded by the European Union and coordinated by acatech (Germany), activities are carried out by Amadeus SAS (France), EIT Urban Mobility, an initiative of the European Institute of Innovation and Technology, a body of the European Union, (Spain), FIWARE (Germany), FhG (Germany), IDSA (Germany), iSHARE (Netherlands), TNO (Netherlands), USI (Germany), VTT (Finland), EMTA (France), Group ADP (France), KU Leuven (Belgium), ERTICO (Belgium), BAST (Germany), UIH (Hungary), and MDS (Germany).