EU Sovereignty Score
EU sovereignCloud IaaSHeadquarters: LU

Clarence: sovereignty score and 8 European alternatives

Clarence is a sovereign, disconnected (air-gapped) cloud with no external network connection. It offers infrastructure dedicated to each client for running complex workloads, including AI, with a cloud experience comparable to public cloud, but in a secure environment under Luxembourg jurisdiction. Clarence is intended for the Luxembourg government through its IT centre CTIE, and more broadly for governments, regulated companies and international organisations in Europe that handle sensitive data.

Clarence SA is a joint venture of LuxConnect, a wholly state-owned Luxembourg company, and Proximus Luxembourg. The platform runs in two LuxConnect Tier IV data centres in Luxembourg and is managed locally. The technology was initially based on Google Cloud, specifically Google Distributed Cloud air-gapped, which does not depend on a connection to Google Cloud. The software is not open source. For a European organisation this means European owners and hosting, but a US technology base; ask how updates and support work in the disconnected environment.

See the 8 European alternatives ↓Assess your stack with Clarence pre-selected
MastodonLinkedInBlueskyXEmail
Sovereignty score
71 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-655
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 1, 2026
Headquarters
LU (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Hosting signal
GOOGLE-CLOUD-PLATFORM - Google LLC, US (US)Technically measured
Category
Cloud IaaS
Type
Product
Website
clarence-cloud.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Clarence

The European alternatives to Clarence come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

84 European Cloud IaaS vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Clarence one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with Clarence

Clarence is headquartered in LU and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Clarence scores best on data residency.

Clarence is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Clarence together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Clarence?

It depends on your use case. Strong EU alternatives to Clarence include 1984 Hosting, acens and Aiven. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Clarence?

Our list of EU alternatives to Clarence is mostly commercial options. Browse the category on the map for open-source choices.

Is Clarence GDPR-compliant and where is the data hosted?

Clarence is headquartered in LU (EU) and hosts data in EU. That makes Clarence an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 1, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in Cloud IaaS

Cloud IaaS: Infrastructure as a Service — virtual machines, storage, networking. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

See all →
Open in the alternatives dashboardMissing a vendor? Submit itAre you this vendor? You can also become a sponsor on the Cloud IaaS page — with no effect on your score
8 European alternatives to Clarence — GDPR-compliant & EU-hosted · EU Sovereignty Score