The group included 30 to 40 German enterprises, all grappling with the same dilemma: how to rebuild their data platforms without proprietary constraints. The company has published case studies across sectors, including:Urban Data Platforms: City of Freiburg uses Stackable to aggregate and visualise public datasetsFinancial Services: A German banking provider uses Stackable for real-time fraud detection on payment streamsManufacturing: MARTIN GmbH deploys Stackable for performance monitoring in waste-to-energy systemsOpen Data: GBIF leverages Stackable for FAIR-compliant biodiversity data managementGaia-X Data Spaces: Stackable contributes to COSMIC-X and other sovereign data infrastructure projects. Stackable positions itself as a sovereign alternative to cloud-native data platforms such as Databricks, Snowflake, and AWS. The company’s long-term vision is to become the default open-source data platform for enterprises that value sovereignty, flexibility, and support. By combining open-source rigour with enterprise-grade support, Stackable offers a credible path toward sovereign, scalable, and sustainable data infrastructure.