The EuroStack Blueprint: Inside Europe’s Push for a Sovereign Tech Stack

For two decades, Europe has consumed digital infrastructure built almost entirely outside its borders. The servers, operating systems, cloud platforms, app stores and foundation models that power European businesses are overwhelmingly American or Chinese. EuroStack is the most serious attempt yet to change that.

Championed by a growing coalition of academics, industrialists and members of the European Parliament, EuroStack proposes nothing less than a full-stack European alternative — from semiconductors at the bottom to consumer-facing applications at the top. The idea has moved from think-tank white papers into mainstream policy debate, and 2026 is shaping up to be the year it gains real institutional backing.

What exactly is EuroStack?

EuroStack is best understood as a layered map of digital dependencies. At each layer — chips, connectivity, cloud and compute, data and platforms, and applications — the proposal asks a simple question: does Europe control a viable, competitive option, or is it dependent on a handful of foreign providers?

The answer, layer by layer, is sobering. Europe has world-class strength in some areas (lithography equipment, telecoms standards, certain industrial software) and near-total dependence in others (hyperscale cloud, mobile operating systems, frontier AI models). EuroStack’s thesis is that these dependencies compound: weakness in cloud makes it harder to deploy European AI, which makes it harder to build European applications, and so on.

Why now?

Three forces have converged. First, geopolitics: trade tensions and the weaponisation of digital dependencies have made governments acutely aware of the risks of relying on infrastructure they do not control. Second, regulation: the GDPR, the Data Act and the AI Act have created a body of European rules that foreign platforms struggle to satisfy cleanly. Third, economics: the sheer scale of cloud and AI spending leaving the continent has become a line item that finance ministers can no longer ignore.

The result is a political window. Procurement rules are being rewritten to favour European providers, public funding is flowing toward sovereign cloud and AI projects, and large enterprises are quietly building exit plans from US hyperscalers to reduce concentration risk.

The cloud layer is the battleground

If EuroStack has a centre of gravity, it is cloud. This is where dependence is deepest and where the most credible European challengers already exist. Providers such as Hetzner, OVHcloud, Scaleway and Exoscale offer compute, storage and managed services entirely within EU jurisdiction, immune to extraterritorial data-access laws.

The gap is not raw capability so much as breadth and integration. Hyperscalers win deals by offering hundreds of managed services behind a single bill. EuroStack’s answer is federation: a common set of standards and interfaces that let smaller European providers interoperate and present a unified, hyperscaler-like experience without merging into a single monopoly.

Software and the open-source advantage

Above the cloud sits software, and here Europe has a structural advantage it has historically undervalued: open source. Projects with deep European roots — Nextcloud for collaboration, OnlyOffice and Collabora for documents, Keycloak for identity, Matomo for analytics — provide sovereign substitutes for proprietary American suites.

Open source neatly resolves the sovereignty problem because the code can be audited, self-hosted and operated by any European provider. EuroStack proposals increasingly treat well-governed open-source projects as strategic public infrastructure deserving of sustained funding rather than as charity.

What it means for businesses

For most companies, EuroStack is not an abstraction but a procurement opportunity. The direction of travel is clear, and organisations that move early will face less disruption later. Practical steps include:

• Map your current digital supply chain and identify single points of foreign dependency
• Pilot European providers for new workloads rather than ripping out everything at once
• Prefer open standards and portable formats to avoid future lock-in
• Treat data residency and jurisdiction as first-class procurement criteria
• Track public-sector tenders, which increasingly reward European-hosted solutions

The obstacles ahead

None of this is guaranteed. Europe’s fragmentation — 27 member states with different languages, procurement rules and priorities — is the perennial brake on continental-scale projects. Capital markets remain thinner than in the US, making it harder for European challengers to fund the years of losses that building infrastructure requires. And incumbents will not cede market share quietly.

Yet the mood has shifted. Where sovereignty was once dismissed as protectionism, it is now framed as resilience — and resilience sells. The next 18 months, as the EU’s digital industrial policy takes concrete shape, will reveal whether EuroStack becomes a defining framework or another well-intentioned diagram.

The semiconductor question

No discussion of a sovereign stack can avoid silicon. Europe’s position in semiconductors is paradoxical: it is indispensable in some niches and almost absent in others. ASML, the Dutch company that builds the extreme-ultraviolet lithography machines without which no advanced chip can be made, gives Europe a genuine chokehold on the global supply chain. Yet the continent fabricates very few leading-edge chips itself, relying on Asian foundries for the most advanced nodes.

The European Chips Act aims to narrow that gap by subsidising new fabrication capacity and research, with the explicit goal of roughly doubling Europe’s share of global production. Critics argue the targets are ambitious to the point of unrealistic, given the eye-watering cost of leading-edge fabs and the head start held by competitors. Supporters counter that even partial success reduces a dangerous dependency and anchors the rest of the stack.

For EuroStack, semiconductors are the layer where ambition most outruns current capability — and the one where progress will take the longest to materialise. The realistic near-term play is to defend Europe’s strengths in equipment and specialty chips while steadily building capacity, rather than attempting to match Asian fabrication overnight.

Who pays for the stack?

Ambition is cheap; infrastructure is not. The central practical question hanging over EuroStack is funding. Building competitive cloud, chips and AI requires sustained capital on a scale that European venture markets have historically struggled to provide. The proposed answers fall into three buckets: public investment, redirected procurement, and a deeper European capital market.

Public money — through EU programmes and national budgets — can seed strategic projects, but it cannot fund an entire industry indefinitely. The more durable lever is procurement: if European public bodies and large enterprises deliberately direct even a modest share of their existing technology spending toward domestic suppliers, that demand alone could sustain a credible industry without a single new subsidy. The third lever, a genuine capital-markets union that lets European companies raise growth funding at scale, remains the hardest to pull but potentially the most transformative.

The financial argument ultimately reframes sovereignty as investment rather than cost. Money spent on European infrastructure recirculates within the European economy — funding jobs, skills and tax revenue — instead of flowing out as rent. Framed that way, the spending looks less like protectionism and more like industrial strategy.

Conclusion

EuroStack is less a single product than a lens: a way of seeing Europe’s digital economy as a stack of dependencies that can be deliberately strengthened. Whether or not the brand endures, the underlying logic — that control of infrastructure is a strategic asset — is now firmly embedded in European policy.

For businesses, the message is pragmatic rather than ideological. Diversifying away from a handful of foreign platforms reduces risk, improves compliance and increasingly aligns with where public money and regulation are heading. The sovereign stack is being built whether or not any individual company participates; the only real question is who benefits.