Weighted Score:
78
High sovereignty due to EU-owned and EU-governed and EU law only.

Company name: STRATO GmbH
URL: https://www.strato.de
eurotechguide review(s): Strato Cloud Drive

Digital services offered: Cloud Infrastructure, Cloud drive
Criterion Score Short Assessment Long Rationale
SOV-1 (strategic) 4 EU-owned and EU-governed. STRATO is headquartered in Berlin and is a subsidiary of United Internet (Germany). Under SOV-1, decisive authority is in EU jurisdiction, with EU anchoring of governance and value creation. Change-of-control risk exists for any corporate group, but the controlling structure is EU-based. This fits SEAL-4 for strategic sovereignty (complete EU control and anchoring).
SOV-2 (legal) 4 EU law only. STRATO is governed under German/EU law. This aligns with “subject only to EU law” in the framework’s SEAL-4 definition for the legal/jurisdictional axis.
SOV-3 (data & AI) 3 EU hosting; global hardware. STRATO’s servicers are hosted in Germany, but like most providers it still relies on global hardware/firmware supply chains. Without evidence of customer-held cryptographic control by default across all services and given standard hosting realities, SEAL-3 is appropriate: strong EU hosting posture but not full EU control over all critical dependencies.
SOV-4 (operational) 4 EU-operated; strong autonomy. Infrastructure and operations are EU-based under United Internet. Service continuity does not depend on US hyperscaler support. → SEAL-4
SOV-5 (supply chain) 2 Semiconductor dependency. Semiconductor and firmware supply chains are global, representing a material non-EU dependency. → SEAL-2.
SOV-6 (technological) 3 Interoperable, not fully open. Technology stack is largely proprietary hosting, but interoperability via common standards is strong. Still, not fully open/auditable end-to-end like an open-source platform. That’s meaningful EU control with some lock-in risk → SEAL-3.
SOV-7 (security) 3 Strong EU compliance baseline. EU jurisdiction supports EU-based security operations and compliance, but without specific evidence here of EU-exclusive SOC/audit provisions comparable to sovereign public-sector offerings, SEAL-3 is a fair baseline.
SOV-8 (environmental) 2 Limited quantified reporting available No clear, quantified public sustainability reporting specific to service operations. Environmental maturity not demonstrably evidenced. → SEAL-2

The scoring is done according to the Cloud Sovereignty Framework (v1.2.1 , October 2025). The scores are determined based on publicly available information, but something may have been missed. In case you want to challenge the score or submit a new digital service, click here