EU sovereignCloud IaaSHeadquarters: CH

Flow Swiss: sovereignty score and 8 European alternatives

Flow Swiss is a Swiss cloud provider offering virtual machines, storage, networks, firewalls, load balancers and VPNs (Compute), managed Kubernetes, an App Engine for containers and applications, S3-compatible object storage and Mac bare-metal hosting. Its CI Engine provides ephemeral macOS build agents on Apple Silicon. The services are consumed as a hosted cloud and are aimed at companies that want their workloads and development environments run by a Swiss provider.

Flow Swiss AG is headquartered in Switzerland and is a member of the Swiss Sonio Group. The platform runs from three data centres in Switzerland, named ZRH1, ALP1 and ALP2. Switzerland is not an EU member but belongs to EFTA, and has its own data protection law alongside European rules. The website cites ISO 27001, GDPR compliance and CSA certification. Flow Swiss is not open source, although its offering is built on technologies such as Kubernetes and containers.

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Sovereignty score

67 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in Switzerland: Swiss law, recognised by the EU as adequate
Data residency SOV-380
Hosting in Switzerland only (recognised by the EU as adequate)
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 9, 2026

Headquarters	CH (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	CHVerified 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	flow.swiss ↗

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 Flow Swiss

The European alternatives to Flow Swiss 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 Flow Swiss

Flow Swiss 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.

Flow Swiss hosts data in Switzerland only. Switzerland is not part of the EU or the EEA, so the GDPR does not apply there directly; the European Commission does recognise Swiss data protection as adequate, so personal data can go there without extra safeguards. Our model therefore scores it between EU hosting and hosting outside Europe. If you require strictly EU hosting, take this into account.

Flow Swiss 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 Flow Swiss 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 Flow Swiss?

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

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

Is Flow Swiss GDPR-compliant and where is the data hosted?

Flow Swiss is headquartered in CH (EFTA) and hosts data in CH. That makes Flow Swiss 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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