Self-hosted / open sourceCAD & EngineeringHeadquarters: GB

OpenFOAM: sovereignty score and 8 European alternatives

OpenFOAM is free, open-source software for computational fluid dynamics (CFD). It simulates complex fluid flows involving chemical reactions, turbulence and heat transfer, and also covers acoustics, solid mechanics and electromagnetics. Engineers and researchers use it to run simulations on their own workstations or clusters. Two releases appear each year, in June and December, with pre-compiled packages for Ubuntu, openSUSE and Red Hat, plus apptainer images. On Windows it runs via WSL or Docker, and on macOS via Docker or a build from source.

This OpenFOAM line has been developed mainly by OpenCFD Ltd since 2004; OpenCFD owns the OpenFOAM trademark. It has been a subsidiary of ESI Group since 2012, and ESI is now part of the US company Keysight. The software is released under the GPL. Because you install and run OpenFOAM yourself, models and results stay on your own infrastructure, though the ultimate parent is a US company.

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

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Sovereignty score

79 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-250
Headquartered outside the EU (GB)
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-675
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 9, 2026

Headquarters	GB (OTHER)Verified by hand
Ultimate parent company	USVerified by hand
EU adequacy decision	Yes — found adequate by the European CommissionVerified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	YesVendor-stated
Hosting signal	CLOUDFLARENET - Cloudflare, Inc., US (US)Technically measured
Category	CAD & Engineering
Type	Product
Website	openfoam.com ↗

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 OpenFOAM

The European alternatives to OpenFOAM 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

68 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 OpenFOAM

OpenFOAM 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. The ultimate owner is based in US. Foreign control undermines part of the certainty a European headquarters offers.

Data is hosted exclusively in the EU, so OpenFOAM scores best on data residency.

OpenFOAM 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 OpenFOAM 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 OpenFOAM?

It depends on your use case. Strong EU alternatives to OpenFOAM include Blender, FreeCAD and KiCad. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to OpenFOAM?

Yes. Open-source EU alternatives to OpenFOAM include Blender, FreeCAD, KiCad, LibreCAD, OpenSCAD and Salome-Meca. These keep your data fully under your own control and let you self-host if you want to.

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

OpenFOAM is headquartered in GB (OTHER) and hosts data in EU. 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 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".

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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