Oracle EU Sovereign Cloud is a set of Oracle Cloud Infrastructure regions in Frankfurt and Madrid, aimed at European organisations that need to keep workloads and data inside the EU. According to Oracle, the services of its public cloud are available there with the same service level agreements, so you can run infrastructure, databases and applications on it. It is delivered as a public cloud hosted by Oracle itself, with Equinix named as host partner in Frankfurt and Digital Realty in Madrid.
The regions are owned and operated by separate Oracle-owned legal entities incorporated in the EU, and operations and customer support are restricted to EU-based personnel. Oracle states that the regions share no infrastructure with its commercial European regions, have no backbone network connection to its other cloud regions, and manage customer access separately. The entities remain Oracle subsidiaries, however; the ultimate parent, Oracle Corporation, is American, which is the relevant factor for CLOUD Act exposure. The service is proprietary and not open source, and data is hosted in the EU.