Your knowledge,accelerated.

Independent AI for regulated markets, owned entirely by Europe.

Nostrion brings independent AI to the professions Europe trusts most. Your data never leaves Europe.

Café terraces along the Oudegracht canal in Utrecht on a sunny day

Intelligence should belong to those who create the knowledge.

Every organisation holds knowledge that took years to build: the expertise of its people, the lessons of its work, the standards it upholds. In regulated markets, that knowledge is the foundation of trust.

Nostrion believes this knowledge should grow stronger with AI, and that the intelligence built on it should stay with the organisations that created it. Rooted in European values, Nostrion is built for organisations that want to own their future.

Independent intelligence.

Five choices that keep your knowledge yours.

  1. 01

    Open by design

    Open models, our own platform, no lock-in. When open-source AI improves, our clients benefit.

  2. 02

    Owned in Europe

    European in ownership, infrastructure and governance. Fully under EU law. Our AI follows the norms and values our clients share.

  3. 03

    Compliance by design

    Built into every layer from day one, not added afterwards. Certified for ISO 27001, ISO 42001 and NEN 7510, and grounded in GDPR and the AI Act.

  4. 04

    Experts speak to experts

    Our notaries work with notaries. Our accountants work with accountants. Each market is led by people who’ve done the job.

  5. 05

    Lessons travel, data stays

    Every new market makes the platform smarter. We share what we learn, never what our clients own.

A deep partnership with Nebul.

From the chip to the model, every layer is European. With Nebul, we design, test and improve sovereign AI together, so it stays that way.

Three Nostrion team members walking along a canal in Utrecht

Our vision

Transformational technology is only truly yours if you own every layer.

An EU data center doesn’t make you sovereign: US authorities can compel US providers wherever their servers stand. And even a sovereign data center isn’t enough: the CDN in front of it handles every request: If that layer is American, so is your exposure. Our CDN is Slovenian. Every layer gets the same question: under whose law does this fall? If the answer isn’t European, it gets replaced.

These are hard engineering challenges, solved by a small team of Europe’s best: engineers from Proton, Picnic and Rabobank, with deep experience building for privacy, scale and regulation.

Europe doesn’t need another wrapper. It needs the whole machine.

Rico, Sven and Tanno

Founders

Certified and compliant.

How we protect your data

Accelerate what your organisation knows.

Open, efficient, European, and truly yours.