EU sovereignCloud IaaSHeadquarters: CH

CloudSigma: sovereignty score and 8 European alternatives

CloudSigma is a Swiss cloud provider that supplies its platform to service providers such as telecom operators, managed service providers and data centre operators. They resell it under their own brand as a white-label Sovereign Cloud. The platform offers virtual machines on KVM or VMware, VPC, ARM, block, object and backup storage, networking and security features, GPU compute for AI, and an OpenAI-compatible API for AI models. Everything can be automated through an API, including with Terraform and Ansible, and billing is based on metered usage.

CloudSigma was founded in 2009 and is headquartered in Switzerland, a country outside the EU but within EFTA. Where data is stored depends on the partner: according to CloudSigma, partners deliver the service from dozens of regions in dozens of countries, with in-country data residency. A European customer therefore needs to check, contract by contract, in which country and under which jurisdiction the infrastructure sits. CloudSigma lists certifications such as ISO 27001 and SOC 2. The platform itself is not open source.

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Sovereignty score

59 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in Switzerland: Swiss law, recognised by the EU as adequate
Data residency SOV-350
Hosting inside and outside Europe (EU, CH, US, OTHER)
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-645
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 9, 2026

Headquarters	CH (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EU, CH, US, OTHERVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Hosting signal	CLOUDFLARENET - Cloudflare, Inc., US (US)Technically measured
Category	Cloud IaaS
Type	Product
Website	cloudsigma.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 CloudSigma

The European alternatives to CloudSigma 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 CloudSigma

CloudSigma is headquartered in Switzerland and falls under Swiss law, including the revised Swiss data protection act. Switzerland is not an EU member, but the European Commission recognises its level of data protection as adequate. Its Swiss headquarters does not by itself bring it under US legislation such as the CLOUD Act.

CloudSigma hosts data in EU, CH, US, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

CloudSigma 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 CloudSigma 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 CloudSigma?

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

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

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

CloudSigma is headquartered in CH (EFTA) and hosts data in EU, CH, US, OTHER. That makes CloudSigma 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 9, 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".

CSA STARConfirmed in registry

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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