EU Sovereignty Score
EU sovereignCloud PaaSHeadquarters: FR

Stackhero: sovereignty score and 8 European alternatives

Stackhero is a platform that provides managed cloud services based on open-source software. The catalogue includes databases such as PostgreSQL, MySQL, ClickHouse and Valkey, messaging systems such as Kafka and RabbitMQ, monitoring tools such as Grafana, and applications such as GitLab and Nextcloud. Services start within minutes, with hourly billing, automatic daily backups and one-click updates. Stackhero is delivered as a hosted service; the platform itself is not open source.

Stackhero describes itself as a European company based in France. It built its own cloud software and runs it on bare-metal servers instead of a third-party cloud. Customers choose the region when they order a service, either Europe or the USA, and the data stays in the chosen region; it is hosted in Europe only if the service is started in a European region. Stackhero states that it holds ISO 27001:2022 certification.

See the 8 European alternatives ↓Assess your stack with Stackhero pre-selected
Sovereignty score
59 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-350
    Hosting inside and outside Europe (EU, US)
  • 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
HeadquartersFR (EU)Verified by hand
Sovereignty modelVendor-hosted (EU)Verified by hand
Data hostingEU, USVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
Compliance documents1 published, see belowVendor-stated
Hosting signalCLOUDFLARENET - Cloudflare, Inc., US (US)Technically measured
CategoryCloud PaaS
TypeProduct
Websitestackhero.io ↗

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 Stackhero

The European alternatives to Stackhero come from our knowledge base of over 6,200 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 Stackhero

Stackhero 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.

Stackhero hosts data in EU, US. 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.

Stackhero 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 Stackhero 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 Stackhero?

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

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

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

Stackhero is headquartered in FR (EU) and hosts data in EU, US. That makes Stackhero 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".

EU hosting documented
stackhero.io/en-US/stackhero/gdpr

Provenance of the links above:Vendor-stated

Links checked on September 21, 2026.

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 Stackhero — GDPR-compliant & EU-hosted · EU Sovereignty Score