EU sovereignCloud IaaSHeadquarters: FR

Atos OneCloud: sovereignty score and 8 European alternatives

Atos OneCloud is the cloud transformation programme that Atos launched in November 2020. It is not a cloud platform of its own but a bundled offering of ten components, including industry-specific consulting, multi-cloud orchestration, automated management, private and sovereign cloud platforms, application modernisation, cloud AI, bare-metal servers and cybersecurity supervision. It is aimed at existing and new clients at any stage of cloud maturity, who can migrate modularly. Atos delivers OneCloud through public, private or hybrid cloud environments, together with partners such as AWS, Google Cloud, Microsoft Azure, IBM-Red Hat and SAP.

Atos is a listed IT services company headquartered in Bezons near Paris, France. Where your data resides depends on the chosen environment and partner: in a hyperscaler environment, the jurisdiction of that provider applies. The software is not open source. For a European organisation this means a French integrator; fix the hosting location and the operating model contractually for each project.

See the 8 European alternatives ↓Assess your stack with Atos OneCloud pre-selected

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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	FR (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
Compliance documents	2 published, see belowVendor-stated
Hosting signal	CLARANET-AS - Claranet Limited, GB (FR)Technically measured
Category	Cloud IaaS
Type	Product
Website	atos.net ↗

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 Atos OneCloud

The European alternatives to Atos OneCloud 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

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Why digital sovereignty matters with Atos OneCloud

Atos OneCloud is headquartered in FR 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 Atos OneCloud scores best on data residency.

Atos OneCloud 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 Atos OneCloud 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 Atos OneCloud?

It depends on your use case. Strong EU alternatives to Atos OneCloud 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 Atos OneCloud?

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

Is Atos OneCloud GDPR-compliant and where is the data hosted?

Atos OneCloud is headquartered in FR (EU) and hosts data in EU. That makes Atos OneCloud 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".

Data Processing Agreement (DPA): atos.net/en/privacy
Subprocessor list: atos.net/en/privacy/global-privacy-notice

Provenance of the links above:Vendor-stated

Links checked on September 22, 2026.

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.

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