Self-hosted / open sourceCAD & EngineeringHeadquarters: BE

Eclipse Capella: sovereignty score and 8 European alternatives

Eclipse Capella is an open-source software tool for model-based systems engineering (MBSE). It applies the Arcadia language and method to design the architecture of complex systems, covering system, software and hardware design. The website describes industrial use in aerospace, energy and transportation. Obeo offers support, training and customisation services for the tool. The source code is published on GitHub.

Capella is published under the Eclipse Public License 2.0 and is developed within the Eclipse Foundation, a non-profit organisation based in Brussels, Belgium. Because the software runs on the user's own computers, engineering models can stay within the organisation's own infrastructure. For a European organisation that uses proprietary model-based engineering suites, it is an open-source option with no vendor-hosted component and no non-European parent company.

See the 8 European alternatives ↓Assess your stack with Eclipse Capella pre-selected

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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 12, 2026

Headquarters	BE (EU)Verified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	NoVendor-stated
Category	CAD & Engineering
Type	Product
Website	mbse-capella.org ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Eclipse Capella

The European alternatives to Eclipse Capella come from our knowledge base of over 7,800 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

88 European CAD & Engineering 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 Eclipse Capella

Eclipse Capella is headquartered in BE 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 Eclipse Capella scores best on data residency.

Eclipse Capella 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 Eclipse Capella 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 Eclipse Capella?

It depends on your use case. Strong EU alternatives to Eclipse Capella include ACCA software, ALLPLAN and AUCOTEC Engineering Base. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Eclipse Capella?

Yes. Open-source EU alternatives to Eclipse Capella include Blender. These keep your data fully under your own control and let you self-host if you want to.

Is Eclipse Capella GDPR-compliant and where is the data hosted?

Eclipse Capella is headquartered in BE (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Eclipse Capella 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 12, 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 CAD & Engineering

CAD & Engineering: Computer-aided design, 3D modelling and engineering simulation software. 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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