EU Sovereignty Score
Non-EU vendorCloud PaaSHeadquarters: GB

Cloud 66: sovereignty score and 8 European alternatives

Cloud 66 is a platform for deploying and managing applications on cloud infrastructure. It does not supply servers itself but works with your own cloud accounts or servers. Features include zero-downtime, blue/green and canary deployments, hosted build servers with a container registry, auto scaling based on application metrics, teams and permissions, preview deployments for branches and pull requests, managed databases with backups and replication, server hardening and monitoring. You use it through the web application; service configuration is kept in files backed by a Git repository.

The company behind the platform is Cloud 66, Inc., which has built developer tools since 2012; press coverage describes it as London-based. Where your data resides depends on the cloud provider you choose. According to its privacy policy, personal data may be transferred to and stored outside the European Economic Area. The platform is not open source. A European organisation should therefore assess both its own provider choice and where the vendor's management data is handled.

See the 8 European alternatives ↓Assess your stack with Cloud 66 pre-selected
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Sovereignty score
42 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-250
    Headquartered outside the EU (GB)
  • Data residency SOV-350
    Hosting inside and outside Europe (EU, OTHER)
  • Cryptographic key sovereignty SOV-340
    Key management with a non-European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-630
    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 5, 2026
Headquarters
GB (OTHER)Verified by hand
EU adequacy decision
Yes — found adequate by the European CommissionVerified by hand
Sovereignty model
Vendor-hosted (non-EU)Verified by hand
Data hosting
EU, OTHERVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
Cloud PaaS
Type
Product
Website
cloud66.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Cloud 66

The European alternatives to Cloud 66 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

31 European Cloud PaaS 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 Cloud 66

Cloud 66 is headquartered in GB, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor.

Cloud 66 hosts data in EU, 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.

Cloud 66 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 Cloud 66 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 Cloud 66?

It depends on your use case. Strong EU alternatives to Cloud 66 include alwaysdata, amazee.io and anynines (a9s). On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Cloud 66?

Our list of EU alternatives to Cloud 66 is mostly commercial options. Browse the category on the map for open-source choices.

Is Cloud 66 GDPR-compliant and where is the data hosted?

Cloud 66 is headquartered in GB (OTHER) and hosts data in EU, OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

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 5, 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 PaaS

Cloud PaaS: Platform as a Service — managed runtimes, container orchestration, serverless. 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

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8 European alternatives to Cloud 66 — GDPR-compliant & EU-hosted · EU Sovereignty Score