Magazine
Cloud Storage
Object Storage

Achieve Verifiable Compliance with Europe’s Most Sovereign Object Storage

08.08.2025

9

Minutes
Christian Kaul
Founder & COO Impossible Cloud
Navigate GDPR, NIS-2, and the EU Data Act with a storage architecture built for digital sovereignty, not just residency.

For European IT leaders, ensuring data compliance has become a complex challenge. Regulations like GDPR, the NIS-2 Directive, and the 2025 EU Data Act demand more than just performance; they require verifiable digital sovereignty. Storing data in an EU-based data center owned by a non-EU entity creates a critical legal conflict, exposing sensitive assets to foreign laws. This article explains how to select the most compliant object storage in Europe by focusing on jurisdictional control, regulatory readiness, and an architecture designed to eliminate vendor lock-in and hidden costs.

Key Takeaways

  • True compliance requires digital sovereignty—storage from an EU-owned and operated provider—to avoid foreign legal conflicts like the US CLOUD Act.
  • The EU Data Act, effective September 2025, mandates data portability, making S3 compatibility and zero egress fees essential for compliant object storage.
  • An "Always-Hot" storage architecture simplifies operations and strengthens resilience by ensuring 100% of data is always available for immediate access.

Distinguish Data Residency from True Digital Sovereignty

Many providers offer data storage within European borders, meeting a basic residency requirement. However, if a non-EU entity owns the provider, your data remains subject to foreign laws like the US CLOUD Act. This law permits US authorities to compel access to data controlled by US firms, regardless of its physical location. True sovereignty means your data is legally and operationally controlled by an EU-based company under EU law. This distinction is the foundation for finding the most compliant object storage in Europe. This jurisdictional clarity ensures regulations like GDPR are upheld without conflict. True compliance architecture starts with legal and geographical alignment.

Align Storage with GDPR's Core Principles

GDPR compliance is a primary driver for choosing European object storage. The regulation restricts personal data transfers outside the EEA unless the receiving country has an adequate level of protection. Using a provider governed exclusively by EU law simplifies this, as data remains within the same legal framework from creation to deletion. Features like geofencing ensure data stays within a specified country, providing auditable proof of compliance for regulated industries. For example, financial services can enforce that all customer data remains within Germany. This moves beyond simple storage to active compliance management.

Prepare for 2025's New Regulatory Landscape

Two major regulations taking full effect in 2025 redefine compliance standards for cloud services. They demand a proactive approach to security and data portability. These new rules make choosing the right storage partner more critical than ever.

Meet EU Data Act Portability Mandates

The EU Data Act, applicable from September 2025, is designed to prevent vendor lock-in. It requires cloud providers to facilitate easy switching to another service, including the transfer of all data and metadata. A compliant storage solution must have 100% S3 API compatibility to ensure your tools and scripts work without modification. Furthermore, a transparent cost model with zero egress fees or API call charges is essential for true data portability. This aligns directly with the Act's goal of creating a fair and competitive digital market. Your EU cloud data protection strategy must account for these new rights.

Adhere to NIS-2 Security Requirements

The NIS-2 Directive imposes stringent cybersecurity risk-management measures for critical infrastructure, including data center and cloud providers. Compliance requires a multi-layered security approach. Key capabilities to look for include:

  • Immutable Storage: Object Lock functionality makes data unchangeable for a set period, providing robust defense against ransomware.
  • Advanced IAM: Granular Identity and Access Management with MFA and Role-Based Access Control (RBAC) ensures only authorized personnel access data.
  • Continuous Security: Providers must demonstrate ongoing vulnerability management, supply-chain security, and documented incident reporting processes.
  • EU-Controlled Encryption: Both at-rest and in-transit encryption must be managed under EU jurisdiction, including all key management procedures.

These features are not optional extras; they are fundamental requirements for operating in Europe's evolving digital infrastructure.

Leverage an Architecture Built for Resilience and Simplicity

The most compliant object storage solutions pair regulatory alignment with a superior technical architecture. An "Always-Hot" storage model ensures all data is immediately accessible without delays from tiering. This eliminates the operational complexity and hidden restore fees common with legacy systems. For use cases like backup and disaster recovery, this guarantees that 100% of your data is ready for restoration at any moment. This architectural choice directly supports business continuity and simplifies audits. Full S3 compatibility further protects your existing investments in applications and pipelines. This focus on operational excellence is a hallmark of ISO 27001 certified storage. This simplicity ensures your compliance posture is not weakened by complex, brittle systems.

Empower MSPs and Channel Partners with a Predictable Model

For Managed Service Providers, resellers, and system integrators, compliance is a service promise to clients. A predictable economic model is crucial for building profitable offerings. Storage with zero egress fees, no API call costs, and no minimum storage duration allows MSPs to offer Backup-as-a-Service (BaaS) with stable, defensible margins. A partner-ready platform provides essential tools for this market. Features should include:

  1. A multi-tenant management console with robust RBAC and MFA.
  2. Full automation capabilities via API and CLI for streamlined operations.
  3. Clear reporting tools for client billing and usage monitoring.
  4. Fast onboarding processes to accelerate time-to-revenue.

Recent distribution agreements with partners like api in Germany and Northamber plc in the UK demonstrate a growing ecosystem designed to support the channel. This partner-centric approach makes it easier to deliver sovereign object storage across Europe.

Implement Your Sovereign Storage Strategy

Transitioning to a compliant storage solution is a practical, value-driven move. Start by identifying all workloads that process sensitive or regulated data. A 100% S3-compatible API ensures your existing backup tools, from Veeam to NovaBackup, integrate seamlessly. Test the migration process with a small dataset to validate endpoint configurations and IAM policies. Finally, perform a test restore to confirm data integrity and accessibility, ensuring your disaster recovery plan is fully functional. This methodical approach minimizes risk and accelerates your path to verifiable compliance. Ready to build a truly sovereign data strategy? Talk to an expert to get started.

FAQ

Is your object storage S3 compatible?

Yes. We offer full S3 API compatibility, ensuring your existing applications, scripts, and tools continue to work without any code rewrites. This protects your past investments and minimizes migration risk for seamless integration with leading backup and archival software.


How do you ensure my data stays within a specific country?

Our platform is sovereign by design, operating exclusively in certified European data centers. We provide country-level geofencing capabilities, allowing you to restrict data storage to predefined regions to meet strict regulatory and compliance requirements under EU rules.


What makes your pricing model predictable?

Our pricing is transparent and predictable by design. We charge for storage used and nothing more. There are no egress fees, no API call costs, and no minimum storage duration, eliminating the surprise costs common with other providers and enabling predictable margins for our partners.


How does your storage protect against ransomware?

We provide Immutable Storage through S3 Object Lock. This feature allows you to make backups unchangeable for a specified period, creating a secure, tamper-proof copy of your data that cannot be encrypted or deleted by ransomware, ensuring a reliable recovery point.


Is your platform suitable for MSPs?

Absolutely. Our platform is partner-ready, featuring a multi-tenant console with granular RBAC and MFA, full automation via API/CLI, and clear reporting. Combined with our predictable pricing model, it enables MSPs to build profitable and compliant BaaS and archiving services.


How do you address the EU Data Act and NIS-2?

Our architecture is built for modern compliance. We address the EU Data Act with a no-egress-fee model and full S3 compatibility for portability. For NIS-2, we provide robust security measures, including immutable storage, advanced IAM, and continuous vulnerability management, all under EU legal control.


Would you like more information?

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