EU Sovereignty Score
EU sovereignData Platform & WarehouseHeadquarters: DE

Urban Stack: sovereignty score and 8 European alternatives

Urban Stack is an intermunicipal digital ecosystem for local authorities. It combines an urban data platform (Urban Data Hub) with an environment for the administration itself (Urban Gov Hub), offering dashboards, maps, analysis and low-code tools, and a public layer (Urban Citizen Hub) for open data, visualisations and citizen participation. A City Tools marketplace adds reusable applications for specific municipal tasks. The repository includes components such as CKAN, Discourse, JupyterHub and Superset.

Urban Stack emerged from the German Smart Cities model project of the city of Gütersloh and is offered as a product of Gütersloh Digital, that city's digitalisation unit. Several municipalities and a district in North Rhine-Westphalia already use it. The code is on OpenCoDE under the EUPL-1.2 licence. According to the project site, the multi-tenant service runs in data centres in Germany, with data separated per municipality; the open components can also be reused independently.

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Sovereignty score
94 / 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-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

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 14, 2026
Headquarters
DE (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
Data Platform & Warehouse
Type
Product
Website
urbanstack.de ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Urban Stack

The European alternatives to Urban Stack come from our knowledge base of over 9,300 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

25 European Data Platform & Warehouse 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 Urban Stack

Urban Stack is headquartered in DE 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 Urban Stack scores best on data residency.

Urban Stack is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Urban Stack 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 Urban Stack?

It depends on your use case. Strong EU alternatives to Urban Stack include AxonIQ, CIVITAS/CORE and Datarchipel. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Urban Stack?

Yes. Open-source EU alternatives to Urban Stack include CIVITAS/CORE, Datarchipel, DuckDB, Eclipse Dataspace Components and Eclipse Tractus-X. These keep your data fully under your own control and let you self-host if you want to.

Is Urban Stack GDPR-compliant and where is the data hosted?

Urban Stack is headquartered in DE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Urban Stack 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 14, 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

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in Data Platform & Warehouse

Data Platform & Warehouse: Lakehouses, cloud data warehouses, data-lake storage and analytical databases for enterprise-wide analysis. 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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8 European alternatives to Urban Stack — GDPR-compliant & EU-hosted · EU Sovereignty Score