A good data infrastructure is the basic prerequisite for analyzing data. For GEDK GmbH, we are building an AWS cloud-based data infrastructure that enables fast ad-hoc query processing and visualization with business intelligence (BI) tools such as dashboards. Before the implementation, the individual customer requirements were worked out in workshops. Within the framework of a long-term maintenance contract, we accompany the further development and are also available as a contact partner after the implementation of the data warehouse. In the next step, the data infrastructure will be used to perform predictive analyses and thus take the next step towards becoming a data-driven company.