With the release of fragmentiX OS (frXOS) 2.9.0, we expanded our list of approved EU-based storage providers with Leviia (France) and PlusServer (Germany). Both providers have been tested for compatibility and are integrated into our user interface with pre-configured templates.

With frXOS 2.12.0, OVHcloud (France) was added as another approved EU-based storage provider.

With these additions, fragmentiX Appliances now support six approved cloud storage providers within the EU27 – an important advantage for customers prioritizing GDPR compliance, data sovereignty and protection from foreign state access.

Storage LOCATIONs in frXOS

To use a fragmentiX Appliance, you first define storage LOCATIONs – the physical destination, on-premise or in the cloud, where your encrypted data fragments are stored. Our technology is based on the cryptographic method of secret sharing, which splits your data into multiple fragments. You define how many fragments are created in total and the number of fragments (threshold) needed to reconstruct the data. Access to fewer fragments than the defined threshold provides zero information about the original data.
Our technology is considered quantum-safe and therefore ensures that accessing a single data fragment – through legal or illegal means – does not reveal any usable information, even to quantum computers.
While we offer a “Generic S3 Providers” template to accommodate all S3-compatible cloud storage options, we also maintain a list of approved cloud storage providers whose compatibility with fragmentiX Appliances and support for the required features are regularly tested.

Approved S3-Compatible Cloud Providers

(last updated October 2026)

• Amazon AWS (USA)
• Wasabi (USA)
• Impossible Cloud (Germany)
• IONOS (Germany)
• eww ITandTEL (Austria)
• Leviia (France)
• PlusServer (Germany)
• Linode (USA)
• Alibaba (China)
• Backblaze (USA)
• MinIO (e.g., self hosted)
• OVHcloud (France)

Other Supported Storage Types

In addition to these S3 cloud storage providers, we support other storage types, which come with a different feature set and might be valuable for other use cases.

• MS Azure Blob storage (USA)
• NFS servers
• USB devices

Approved EU27 Cloud Service Providers

While major cloud service providers such as Amazon AWS and Microsoft are headquartered in the United States, they operate data centres around the world. Storing data in a European region does not necessarily remove it from the reach of US jurisdiction. Under the US CLOUD Act, US-based providers can be required to disclose data in their possession, custody or control in response to valid US legal orders, regardless of where that data is stored. To avoid this extraterritorial access risk and provide our customers with sovereign alternatives, we actively identify, test and integrate EU27-based cloud service providers into our user interface and establish partnerships with selected providers.

This does not mean that you can’t take advantage of cost-efficient storage providers in the rest of the world, but we strongly encourage you to store fewer than the threshold number of fragments outside the EU. This keeps your data secure, as even quantum computers cannot extract any information from fewer than the threshold number of fragments!

The first Austrian storage provider, eww ITandTELand their cloud solution Ventuscloud, was approved in 2023 in frXOS 2.2.1. This could be combined with on-premises storage at the customer site to set up minimal strategies with three fragments in total and a threshold of two for reconstruction, while storing fewer than the threshold number of fragments outside Europe.

Early in 2025, the German cloud service providers Impossible Cloud and IONOS were approved with the release of frXOS 2.8.0, and a partnership with Impossible Cloud was formed.

With the release of frXOS 2.9.0 in July 2025, we added our first French cloud service provider, Leviia, as well as another German provider, PlusServer, to our list of approved storage providers. Both are regularly tested for compatibility and available as pre-configured templates in the frXOS user interface.

With frXOS 2.12.0, we further expanded our list of approved EU27 cloud providers by adding OVHcloud (France).

With six approved EU27 cloud providers now available, users can implement more resilient and potentially more efficient storage strategies without deploying storage hardware on-premises. For example, a “five out of nine” storage strategy, with a threshold of five fragments and nine fragments in total, allows five fragments to be stored within the EU while only four are stored outside the EU. Since fewer than the threshold number of fragments are stored outside the EU, they cannot be used to reconstruct the original data.

Details on the Approval of Storage Providers

We aim to follow the S3 protocol as closely as possible in our implementation, which means fragmentiX Appliances are compatible with any S3-compatible storage provider.

For storage providers we officially approve, we run a defined set of tests to ensure they meet our minimum technical requirements. These tests are performed directly on the provider’s S3 buckets. Additionally, we support Microsoft Azure Blob Storage with a similar test protocol.

The automatic tests include:

• Upload and download of files
• Multipart uploads
• Deletion of files
• List requests
• Retention settings
• Other minor requests

Some optional features like versioning and object locking (WORM) are tested separately. We also examine the configuration of lifecycle policies, which can help automate data management. The combination of these features allows more sophisticated storage configurations and protection of the fragments against ransomware attacks.

To make the configuration as smooth as possible, we provide pre-configured templates for each approved storage provider in the frXOS user interface – allowing you to set up your LOCATIONs with a few clicks.

Store Smarter with EU-Based Cloud Providers

At fragmentiX, we believe that data sovereignty and resilience are no longer optional – they’re essential. With every new release of frXOS, we aim to expand your options while maintaining our strict standards of security and independence.

Whether you’re operating within strict regulatory frameworks or simply want to avoid foreign data jurisdiction, our growing list of approved EU27 cloud providers empowers you to build a truly sovereign storage strategy.

About fragmentiX

fragmentiX Storage Solutions GmbH, headquartered in Vienna, was founded in 2018. The company develops and markets highly secure storage solutions based on quantum-safe technologies. At the core of the fragmentiX portfolio is the combination of Quantum Key Distribution (QKD), Post-Quantum Cryptography (PQC), and fragmentiX Secret Sharing – a technology that splits data into multiple fragments, encrypts them, and distributes them across different storage locations. This prevents attackers from ever gaining complete access to sensitive data – even if they are able to use stable quantum computers in the future. fragmentiX is a partner in several Austrian and EU research projects and sees itself as a pioneer of digital sovereignty in Europe.

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