The sovereign European cloud
GDPR-compliant cloud infrastructure hosted in France, entirely outside US jurisdiction. 100% open-source, zero vendor lock-in. The European alternative to AWS, Azure and GCP.
Your data belongs under European law
The US Cloud Act gives American authorities access to data stored by US providers, even in EU datacenters. GDPR, NIS2, and DORA demand you keep control. A sovereign European cloud is the answer.
Outside US jurisdiction
Your data is protected by French and European law exclusively. No Cloud Act, no FISA 702, no extraterritorial access by foreign governments.
GDPR-native compliance
Built for GDPR, NIS2, DORA and sector-specific requirements (healthcare, finance, defense). No data transfers outside the EU, ever.
Zero vendor lock-in
Fully open-source stack you can audit, fork, and migrate to your own servers at any time. True data portability.
Complete GDPR-compliant cloud infrastructure
Sovereign compute
Virtual machines and containers hosted in EU datacenters in France. Hyperscaler-grade performance with full data sovereignty.
- High-performance virtual machines
- Kubernetes orchestration
- Intelligent auto-scaling
Encrypted EU storage
Object, block and file storage with end-to-end encryption. Your data never leaves EU territory.
- AES-256 encryption at rest
- Multi-zone replication in France
- Daily automatic backups
Network & Security
Virtual private network, firewall, WAF and built-in DDoS protection. European peering with low-latency connectivity.
- VPN & private network
- Native DDoS protection
- Web Application Firewall (WAF)
Managed databases
PostgreSQL, MySQL, Redis and more, fully managed in EU datacenters. Automatic backups, high availability, GDPR-compliant.
- PostgreSQL, MySQL, Redis
- High availability
- Point-in-time recovery
Built for European regulatory requirements
GDPR-Native
Full GDPR compliance by design, not as an afterthought. DPA available on request.
NIS2 Ready
Aligned with the European NIS2 directive on network and information system security.
EU Data Residency
Physical infrastructure exclusively in France. No data transfer outside EU territory.
100% Open-Source
Fully auditable stack. No proprietary black boxes, no hidden dependencies on US services.
European sovereign cloud vs. AWS, Azure, GCP
See how a GDPR-native European cloud compares to US hyperscalers on data sovereignty, compliance, and control.
| Criteria | Bunker | AWS / Azure / GCP |
|---|---|---|
| Data residency |
EU only (France)
|
Global, data may leave EU
|
| Legal jurisdiction |
EU law only
|
US Cloud Act applies
|
| Source code |
100% open-source, auditable
|
Proprietary, black box
|
| Data portability |
Full, migrate anytime
|
Significant vendor lock-in
|
| GDPR compliance |
Native by design
|
Complex, ongoing legal risks
|
| Support |
EU-based team, 24/7
|
Global support, variable delays
|
Who needs a sovereign European cloud?
Healthcare
Secure hosting for health data. Meet EU healthcare regulatory requirements.
Finance & Insurance
DORA-compliant infrastructure for the financial sector. Complete audit trail, end-to-end encryption, EU data residency.
Public sector
Trusted cloud for government agencies. Full compliance with EU digital sovereignty requirements.
Industry & Critical infrastructure
Secure infrastructure for critical operators. NIS2 compliance, advanced network isolation, no US dependency.
Frequently asked questions
Is a "sovereign" cloud enough to protect my data from the US CLOUD Act?
No, and this is often misunderstood. A datacenter located in Europe but operated by a company under US law, or by the subsidiary of a US group, stays subject to the CLOUD Act and FISA. What matters is not where the servers sit but which jurisdiction the operator answers to. Bunker is a company under French law, with French capital and no parent or establishment in the United States. Your hosted data stays under French and European law, outside the ordinary reach of a US extraterritorial order.
What is reversibility, and why does it matter so much?
Reversibility is your ability to retrieve your data and leave the provider with no loss and no penalty. We commit to it contractually: export in open formats, a documented procedure, and no exit fees. The European Data Act (regulation EU 2023/2854, applicable since 12 September 2025) places these obligations on every European cloud provider, and switching charges will be fully removed by 12 September 2027 at the latest.
Can I bring my infrastructure back in-house later?
Yes. The stack is open source end to end. At any time you can move your workloads back to your own servers and keep running them without us, since no proprietary component holds you back. It is the opposite of vendor lock-in.
Is Bunker certified SecNumCloud or HDS?
No, not to date, and we do not claim to be. Hosting health data requires HDS certification (article L1111-8 of the French Public Health Code). Sensitive public-sector contracts and critical operators most often require the French ANSSI SecNumCloud qualification. Those sectors are not our target. For an SMB or a startup not bound by these obligations, applicable French law and contractual reversibility cover the essentials.
How does open source strengthen sovereignty?
Open code is auditable code. Your IT or security team can verify what actually processes your data, instead of trusting a proprietary black box. That is proof rather than a promise, and it supports the accountability principle of the GDPR (article 5(2)).
What is the difference between a European cloud and a truly sovereign one?
A "European" cloud may amount to a datacenter located in Europe while still depending on proprietary software or foreign capital. Real sovereignty rests on three verifiable elements: hosting in Europe, an operator under European law, and no dependence on technology you do not control.
What happens to my data if I cancel?
You retrieve all of your data in a standard format, following a procedure defined in the contract, with no transfer fees. We then carry out a traced deletion, compliant with article 28(3)(g) of the GDPR, keeping no copy. Leaving is as simple as joining.
Is my data used to train AI models?
Never. Your data is neither resold nor used to train a model. On our hosted AI offers, the models run within your perimeter and your exchanges stay with you.
Switch to GDPR-native cloud hosting
Take back control of your data with European cloud infrastructure outside US jurisdiction. Open-source, fully portable. Get a free infrastructure audit.