The Catalogue of Services 2019 is structured in 12 Service Categories and 27 Service Topic, for each of the 12 categories considered. Each type of service/group of services is described, in a simple and friendly way, by means of a specific EC4-Service Data Sheet (EC4-SDS). EC4-SDSs allow structuring and summarizing the information of each service, providing the customer with a concise view of the characteristics of the service and also the contact with the service providers. Some categories of services do not include services available yet.