Sovereign cloud.
Keep control of your data without giving up performance. As an independent advisor, we arbitrate between sovereign European hosts and the EU regions of the hyperscalers — against your real constraints of sovereignty, cost and footprint.
What is a sovereign cloud and what alternatives exist to the hyperscalers?
A sovereign cloud is an infrastructure where the data, the operations and the legal control remain under European jurisdiction, shielded from extraterritorial laws such as the US CLOUD Act. For a European organisation, several options coexist: independent European hosts (OVHcloud, Scaleway, Hetzner), the 'trusted' offerings or EU regions of the hyperscalers, or private hosting. The right choice depends on real constraints: data sensitivity, regulatory requirements (GDPR, NIS 2, public sector), cost and carbon footprint. As an independent advisor — reselling no infrastructure — OSYNA evaluates these options without commercial bias and designs the most sober, best-fitting architecture, rather than the most heavily sold.
Sovereign cloud — A hosting infrastructure whose data and operations remain under European jurisdiction and control, protected from extraterritorial laws. It aims at strategic autonomy over sensitive data and compliance with EU regulation.
- Independent
- No infrastructure resale
- EU / NIS 2
- Aligned with EU regulation
- FinOps + GreenOps
- Cost and carbon arbitrated together
- CLOUD Act
- Extraterritorial exposure assessed
Sovereignty is not a slogan
'Sovereign cloud' covers very different realities — from a fully European data centre to a mere EU region operated by a provider subject to US law. We clarify what sovereignty means for your organisation: which data really must stay under European jurisdiction, which obligations (GDPR, NIS 2, public sector) apply, and what level of guarantee is proportionate. Not everything needs to migrate; the point is to arbitrate correctly.
EU-hosted vs hyperscaler: arbitrate without bias
- Sensitivity and regulation — some data demands strictly European jurisdiction.
- Total cost (TCO) — hyperscalers are not always cheaper in real use; FinOps settles it.
- Carbon footprint — the electrical intensity of the region, the provider's efficiency (GreenOps).
- Reversibility — avoid lock-in: portability of data and workloads.
Independent advice, sobriety built in
We resell no infrastructure: our recommendation carries no commercial bias. And we handle cost and footprint together — a parallel FinOps and GreenOps audit — because optimising the bill without looking at carbon (or the reverse) is only half an optimisation.
What you get
- Mapping of data by sensitivity and sovereignty level
- Evaluation of options (EU hosts, hyperscaler regions, private)
- Extraterritorial-exposure (CLOUD Act) and NIS 2 analysis
- FinOps analysis: costs, right-sizing, reversibility
- Footprint estimation and lower-carbon region choices
- Target architecture and migration plan
Frequently asked
Answers to the most common questions — timelines, sectors, compliance, hosting, methodology.
Does a sovereign cloud necessarily cost more?
Not necessarily. Independent European hosts are often competitive, and a FinOps audit regularly shows the hyperscaler bill can be reduced. Cost is settled case by case, on real TCO — not on assumptions.
Do I have to migrate everything to a sovereign cloud?
Rarely. The pragmatic approach identifies the data and workloads that genuinely require European jurisdiction, and applies sovereignty only where it is proportionate. The rest follows cost and footprint criteria.
Do you host it yourselves?
No, and that is deliberate: we are an independent advisor, reselling no infrastructure. That guarantees our recommendation serves your interest, not a margin on hosting.
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