EU sovereignCAD & EngineeringHeadquarters: DE

Siemens NX: sovereignty score and 8 European alternatives

NX, formerly Unigraphics, is integrated CAD/CAM/CAE software from Siemens Digital Industries Software. It covers parametric and direct solid and surface modelling, assembly modelling, freeform surfacing, reverse engineering, sheet metal, finite element analysis and NC programming for CNC machines, robots and 3D printers. Siemens sells it under the names Designcenter (CAD) and NX CAM. Recent releases are available for Windows and Linux; Siemens also describes a free student edition.

NX is owned by Siemens Digital Industries Software, part of Siemens AG, a German company headquartered in Munich. The software is commercial and closed-source, with no open-source option. Because NX is installed as workstation software, your own IT environment determines where models are stored, unless the vendor's cloud offerings are added. For a European organisation, the relevant question is which additional cloud services, such as cloud-based collaboration, are used and where they run; this should be clarified for each service.

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

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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, APAC)
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 July 2, 2026

Headquarters	DE (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EU, US, APACVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Hosting signal	AMAZON-02 - Amazon.com, Inc., US (US)Technically measured
Category	CAD & Engineering
Type	Product
Website	plm.sw.siemens.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 Siemens NX

The European alternatives to Siemens NX 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 Siemens NX

Siemens NX 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.

Siemens NX hosts data in EU, US, APAC. 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.

Siemens NX 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 Siemens NX 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 Siemens NX?

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

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

Is Siemens NX GDPR-compliant and where is the data hosted?

Siemens NX is headquartered in DE (EU) and hosts data in EU, US, APAC. That makes Siemens NX 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 July 2, 2026.

Sources

This record was checked via the vendor's website and legal notice during the full audit of June and July 2026. Source links have been recorded per record since 20 September 2026.

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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