In short: to host a sovereign WordPress site in 2026, four providers stand out — OVH, Scaleway, Infomaniak, and o2switch. All are based in Europe, subject to GDPR, and outside US jurisdiction. However, their profiles differ. Here is the selection grid based on your firm, along with my concrete recommendation.
When a firm asks me where to host their Client Vault installation, I always suggest these four names — and only these four. Not out of chauvinism, but for consistency: a sovereign vault running on AWS Frankfurt is a legal oxymoron. Choosing a host is not a technical detail; it is a direct extension of your sovereignty posture.
The four hosts I will detail each have their own profile. None is universally “the best.” The best one is the one that aligns with your volume, your budget, your tolerance for technical autonomy, and your industry-specific regulatory requirements.
The four deciding criteria
Before comparing, let’s align the criteria that really matter for a French firm hosting a business-critical vault.
Provider jurisdiction: This is the criterion that makes these four hosts eligible. All are European companies — three French, and Infomaniak is Swiss — not subject to the US CLOUD Act.
Technical profile: Shared hosting (the simplest), VPS (balanced), dedicated server, or private cloud (the most powerful). Your needs will vary depending on your volume of files.
Sectoral certifications: for a paramedical practice that wishes to host sensitive health data, HDS (Health Data Host) certification is mandatory once certain volumes are exceeded. For a law or accounting firm, it is not required, but it acts as a signal of professionalism.
WordPress support and expertise: a vault running on WordPress is easier to manage with a host that specifically masters WordPress.
OVHcloud: the versatile French pillar
OVHcloud is the largest European hosting provider and the only one to offer a complete range, from shared hosting at €5 per month to the SecNumCloud-certified Private Cloud. For a startup firm, the shared Web offer at €7 per month is more than enough. For a firm handling high volumes or wishing to host sensitive data, the VPS Comfort and then the Private Cloud take over.
Strengths: HDS certification on Private Cloud offers. The network and DDoS resistance. Transparency regarding location (you choose Roubaix, Strasbourg, or Gravelines). The maturity of the WordPress ecosystem (1-click install, auto backups, snapshots).
Limitation: shared hosting support is not WordPress-specialized — it will refer you to the documentation. For a firm without a technical contact, this can be challenging.
Recommended for: high-volume firms, organizations with an internal technical lead, and paramedical or hospital structures that require HDS.
Scaleway: the cloud-native challenger
A subsidiary of the iliad group, Scaleway competes with the major European hyperscalers. Its promise: a modern cloud, designed for developers, with a transparent pricing policy and infrastructure located 100% in France or the Netherlands. For a professional firm, this is primarily accessible via their Stardust (shared) offering or a VPS Pro.
Strengths: modern interface, clean API, and an S3-compatible object storage ecosystem — useful for offsite backups. Strong environmental commitment (data centers cooled without air conditioning in the Île-de-France region).
Limitation: less WordPress expertise than OVHcloud or o2switch. More oriented toward technical teams than agencies or independent professional firms.
Recommended for: firms working with a solid WP agency, organizations seeking a modern cloud-native environment, and those with a strong environmental focus.
Infomaniak: the Swiss standard
Infomaniak is a Swiss hosting provider based in Geneva. For a French firm, this raises questions regarding jurisdiction: while Switzerland is not in the EU, it holds an adequacy status for GDPR recognized by the European Commission. In practical terms, hosting with Infomaniak does not pose a GDPR issue for a French firm.
Strengths: quality of support (often cited as the best in the European market). Radical ecological commitment (data centers powered by Swiss renewable energy). Integrated collaborative suite that can replace Google Workspace for firms looking to move away from Google dependency. Very competitive rates for shared professional hosting.
Limitation: no HDS certification — therefore unsuitable for paramedical organizations that formally require it.
Recommended for: law firms, accountants, coaches, and trainers who want the best balance of support, reliability, and price. Firms that also want to move their email away from Gmail.
o2switch: the simple path for autonomous firms
o2switch is a French web host based in Clermont-Ferrand. Their unique feature: a single, unlimited offer regarding quotas (disk space, email accounts, subdomains) for 7 € per month. The price may seem too good to be true — in reality, it is a deliberate marketing strategy maintained for ten years.
Strengths: ultra-simple pricing. Fast and competent French-speaking support that is truly WordPress-friendly. Ideal for autonomous firms that want a single point of contact and no range-related headaches. Decent performance for most firms with under 1000 files.
Limitation: no private cloud for large installations. For very heavy PHP uploads, one sometimes encounters ImunifyAV blocking files > 1 MB — a point to be aware of if uploading dense plugins.
Recommended for: independent firms, solo lawyers, small accounting firms, coaches, and trainers. The best “turnkey” option without an agency.
My recommendation based on your profile
You are a solo firm or a small business without an IT specialist: o2switch or Infomaniak. You want a single service provider, you are starting out, and you want responsive support.
Are you a paramedical practice handling sensitive data? OVH Cloud Privé HDS is the only provider offering the mandatory certification required to host health data beyond simple volumes.
Do you work with a WordPress agency that has mastered infrastructure? Scaleway or OVH VPS are the right choices. You have the expertise to leverage the flexibility, making it the right performance-to-price trade-off.
Do you want to move Gmail and Drive out of your stack? Infomaniak is the answer. Their suite (kMeet, kMail, kDrive) is a credible replacement for Google Workspace for a European practice.
What remains unchanged, regardless of the host
Three principles remain constant. One: enable daily automated backups and store at least one copy off-site (object storage, NAS, or another host). Two: harden WordPress from installation—custom database prefixes, renamed admin accounts, two-factor authentication, and automatic minor updates. Three: monitor disk usage and performance—a safe that breaks down the moment a client tries to upload a document is exactly what you want to avoid.
The right host is one that you can forget about. You install, you configure Client Vault, and you work. The only time you think about hosting is when someone asks you where the data is—and you answer in two seconds, with pride.
