EU Sovereign Hosting: How to Choose & Cost (2026)

The verdict in three sentences

Sovereign hosting in France or the EU (OVH, Scaleway, Outscale) ranges from 10 EUR/month for a showcase site to several thousand EUR/month for a data-intensive application in 2026. The raw cost is often comparable to AWS/Azure; the real difference is legal: immunity from the US Cloud Act, easier GDPR and sovereignty for sensitive data. For health or government data, aiming for HDS or SecNumCloud certification becomes a prerequisite, not an option.

Comparing the players

The choice depends on the load profile, the need for managed services and the required level of sovereignty. Here is a 2026 overview.

Hyperscalers offer more services, but sovereignty remains legally questionable as long as the parent company is subject to US law.

Monthly cost by profile

Budget depends mostly on project type. Here are 2026 orders of magnitude with a sovereign player.

Reversibility and certifications

The classic trap is vendor lock-in: proprietary services and egress fees that make migration costly. Reversibility must be contractual.

Mini case study

Karim, IT Director of a mid-size health firm in Bordeaux, must host an application handling patient data. AWS quoted 1,400 EUR/month but with no native HDS certification and Cloud Act exposure. He migrates to an HDS-certified host at 2,100 EUR/month. Apparent extra cost: 700 EUR/month, i.e. 8,400 EUR/year. But certification is a legal prerequisite: without it, the application simply could not go live. The extra cost is therefore the price of market access, not a luxury, and it removes any risk of a fine for non-compliant hosting.

FAQ

Does sovereign mean more expensive? Not automatically. For standard compute and storage, OVH and Scaleway are often cheaper than AWS, notably thanks to low egress fees. The premium only appears on advanced managed services unique to hyperscalers.

HDS or SecNumCloud, what's the difference? HDS certifies hosting of health data; SecNumCloud is a broader security visa (from the French cyber agency) required for the sensitive public sector and critical operators. Both affect the choice and the cost.

Can you mix sovereign and hyperscaler? Yes, in a hybrid architecture: sensitive data with a sovereign player, non-critical services elsewhere. This optimises cost and compliance, at the price of greater operational complexity.

How much does migrating to sovereign cost? Depending on complexity, from a few thousand EUR (site, small app) to tens of thousands for a complex architecture. The old provider's egress fees can inflate the exit bill.

Is reversibility really guaranteed? Only if contracted: open formats, documented export procedure, timelines. Require an explicit reversibility clause before signing, whatever the provider.

Let's scope your project. Describe your workload (app type, data volume, HDS/SecNumCloud requirements) and we'll cost a sovereign architecture with a monthly estimate and reversibility plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.