Europe’s Quantum Sovereignty Problem: The Right Diagnosis, the Wrong Prescription

The Five-Minute Problem

I am preparing to raise $6 to $8 million to expand Applied Quantum‘s quantum systems integration business. We already built the capabilities to integrate, and deliver quantum computing systems from modular, multi-vendor components. We have the team, the technical capability, and the customer pipeline. What we need is growth capital to scale.

I tested the pitch with investor/VC friends on both sides of the Atlantic. In preparation for the raise. The contrast was diagnostic.

An American VC listened for less than five minutes, said the pitch was strong, and told me to come back asking for $30 million. Asking for $8 million is too little. Several European investors listened thoughtfully for hours, asked excellent questions, went away for days to deliberate, and came back with advice: start with €300,000. Put together a consortium. Apply for some relevant grants. Maybe next year.

Both responses were rational inside their own ecosystems. The American investor operates in a market where quantum hardware companies can raise nine-figure rounds because the bet is binary: either the technology reshapes computing and early positions are worth billions, or the capital is lost. The European investors operate in a system where public co-funding, consortium formation, and phased grant applications are the default path, and where a company that skips those steps can look undisciplined rather than ambitious.

This is not a complaint about Europe being cautious or America being bold. It is a small example of a larger structural problem. Europe has the science, the talent, the component companies, the research infrastructure, and now the strategy documents. What it still does not have is a capital formation and scaling mechanism that matches the speed at which the global quantum industry is consolidating. No strategy paper, however well drafted, can substitute for that.

The Package That Left Quantum Out

On June 3, 2026, the European Commission released its European Technological Sovereignty Package, accompanied by Communication COM(2026) 503. Commission President Ursula von der Leyen framed it starkly: Europe cannot afford to depend on others for the technologies that keep its hospitals running, its energy grids stable, and its services secure.

The package contains four initiatives: Chips Act 2.0 to strengthen the semiconductor ecosystem; the Cloud and AI Development Act to accelerate AI and cloud deployment; the EU Open Source Strategy to reduce dependencies across the software stack; and a Strategic Roadmap for Digitalisation and AI in Energy.

Quantum technology was not one of them.

That does not mean quantum has disappeared from EU policy. The Commission’s tech sovereignty page still lists the Quantum Europe Strategy under “Infrastructure and strategic technologies,” alongside the Chips Act and the Digital Networks Act. The Quantum Europe Strategy, adopted in July 2025, remains the main quantum-specific policy document. The EU Quantum Act is still on the 2026 track, with the original Q2 window narrowing as this article is being written.

But sequencing matters. When the Commission turned its technological sovereignty agenda into concrete legislative machinery (two proposed laws, a formal open source strategy, and an energy roadmap), quantum was left for another vehicle.

The Commission may have good procedural reasons for that. The Quantum Act may require its own legislative architecture. But the optics still matter. The sovereignty package gives immediate legislative weight to the dependencies Europe already feels: chips, cloud, AI, and software. It leaves for later the technology where dependency is still forming, where intervention now could prevent the lock-in that already happened in cloud and AI, and where the window for action is narrowing with every quarter.

This article examines three places where the EU’s quantum strategy, for all its merits, falls short of what sovereignty requires: the capital formation gap that keeps European quantum companies too small to compete at scale, the supply chain vulnerabilities that remain unaddressed, and the missing architectural thesis that could turn Europe’s fragmented vendor landscape into a competitive advantage rather than a liability.

Why Quantum Sovereignty Is Different

Before examining those gaps, the case for why quantum computing demands a different kind of sovereignty argument from semiconductors, cloud, or AI needs to be stated clearly.

With most classical technologies, dependency is graduated. You may get slower chips, less capable models, more expensive cloud services, delayed access to the latest node, or worse bargaining power with foreign vendors. These are serious disadvantages, but they are still degrees of disadvantage. An organization or country with second-best classical technology can function, innovate, and compete, just with a handicap.

Quantum computing is less forgiving. A noisy machine below the fault-tolerance threshold may be useful for research, education, benchmarking, and early application development. It is not an 80 percent substitute for a large fault-tolerant system. Once useful machines exist with hundreds to thousands of logical qubits, depending on the workload, they will solve certain problems that classical systems cannot reproduce at useful accuracy, time, or cost.

As I argued in the Quantum Utility Map, the first industries likely to feel this most directly are pharmaceutical discovery, materials science, battery chemistry, catalysis, and some forms of financial and industrial optimization. The strategic question for those sectors will not be whether their domestic cloud provider is 20 percent more expensive. It will be whether they have access to the machines that make a class of computation possible at all.

The global supply of fault-tolerant quantum computers, when they arrive, will not be broad or evenly distributed. It will likely be concentrated in a small number of machines, hosted in a small number of countries, mediated through a small number of vendors, and shaped by export-control regimes that can change quickly. If a national pharmaceutical industry, materials sector, or financial infrastructure depends on access to quantum computing controlled by another government’s legal and strategic decisions, that is not just a procurement issue. It is a sovereignty problem.

This is why the EU’s quantum strategy matters more than its own authors may appreciate. Getting the implementation wrong would not merely delay a promising industry. It would hardwire dependency into the next layer of strategic compute.

The Right Strategy at the Wrong Speed

The Quantum Europe Strategy is a serious attempt to turn scientific strength into industrial capability, as I analyzed in my coverage of the strategy. Its five areas (research and innovation, quantum infrastructure, ecosystem strengthening, space and dual-use applications, and skills) are the right headings. The infrastructure deployment is real. EuroHPC is bringing quantum systems into the European supercomputing environment, with systems such as PIAST-Q in Poland, VLQ in Czechia, and Euro-Q-Exa in Munich already inaugurated. EuroQCI is building a secure quantum communication infrastructure spanning the EU.

National commitments are substantial. France has committed billions, including an additional €1 billion announced in May 2026, and its PROQCIMA program targets two prototypes with 128 logical qubits by around 2030–2032 and a path to 2,048 logical qubits by 2035. Germany has invested more than €2 billion. The Netherlands allocated €615 million through Quantum Delta NL. Spain launched a 2025–2030 quantum strategy with more than €800 million. At EU and Member State level combined, public quantum funding exceeds €11 billion over the past five years.

And yet every major EU technology strategy of the past two decades has acknowledged the same paradox. Europe leads in research and publication, attracts only about five percent of global private quantum investment (compared with roughly half for the United States), and holds a small single-digit share of global quantum patent families, far behind China at roughly 40–50 percent and the United States at around 20–25 percent, according to recent EU patent landscape analyses. The semiconductor strategy acknowledged this gap. The AI strategy acknowledged it. The cloud strategy acknowledged it. The acknowledgment has become its own genre of European policy writing: Europe invents, Europe publishes, Europe trains, Europe coordinates, and someone else scales.

Consider QuantWare. When the Delft-based QPU manufacturer raised €152 million in its Series B, it was described as the largest private round ever raised by a dedicated quantum processor company and the largest deep-tech round in Dutch history. That is a genuine European success story. But the investor list contains the uncomfortable lesson. European backers such as FORWARD.one, Invest-NL, and InnovationQuarter participated. Two of the most strategically significant new names were Intel Capital and In-Q-Tel, the CIA-backed strategic investor. Europe produced the company, the talent, the technology, and the fab location. American strategic capital still helped make the growth round possible.

This is not a criticism of QuantWare. Quite the opposite: the company did exactly what a serious company should do. It raised the capital it needed from investors willing to move. The problem is what the case reveals about the ecosystem. If Europe’s best quantum companies need American strategic money to scale European strategic capability, then Europe’s sovereignty conversation is missing the main event.

The new Scaleup Europe Fund is a step in the right direction. EQT has been selected to manage a targeted €5 billion fund for European strategic technology scaleups, with first investments expected in autumn 2026. It is real capital, and it is overdue. But it is also broad rather than quantum-specific, and not yet operational. Meanwhile Quantinuum raised $600 million in a single round in September 2025 before listing publicly in June 2026. PsiQuantum raised $1 billion in its Series E. The scale disparity between European and American quantum companies is no longer a matter of tone or ambition. It is measured in orders of magnitude.

My fundraising anecdote is one data point. QuantWare’s investor list is another. The aggregate data says the same thing. If European quantum companies cannot attract growth capital without turning to non-European strategic investors, Europe may end up building the components while others assemble them into geopolitical capability. In quantum, the consequences would be sharper than in previous technology cycles, because access to useful compute will not be smoothly incremental. Below the fault-tolerance threshold, you do not have the capability. Above it, you do.

The Supply Chain Europe Still Has To Name

The tech sovereignty page mentions the ICT Supply Chain Security Toolbox for general IT, and the Quantum Europe Strategy promises a Quantum Technology Risk Assessment. Mapping is necessary. It is not enough.

As I detailed in Quantum Sovereignty and Quantum Systems Integration, the quantum computing hardware stack has at least six independently sourceable layers: QPUs, cryogenics, control electronics, cabling and I/O, calibration and middleware software, and framework/OS/HPC integration. Europe has real strengths across several of those layers. Bluefors in Finland is a global leader in dilution refrigeration. QuantWare in the Netherlands manufactures superconducting QPUs. Qblox builds control electronics. Delft Circuits produces cryogenic cabling. IQM manufactures superconducting processors. Pasqal builds neutral-atom systems. The superconducting quantum ecosystem in particular has European companies at several critical layers of the stack.

But the vulnerabilities are also concentrated. FPGAs used in real-time quantum control come largely from non-EU semiconductor suppliers. Helium-3, required for dilution refrigerators used in superconducting quantum systems, is tied to nuclear-weapons-state stockpiles and tritium decay supply chains, especially the United States and Russia. Certain precision laser systems for trapped-ion and neutral-atom approaches come from US and Japanese suppliers. No generic ICT supply-chain framework will capture these dependencies with enough resolution.

The Quantum Act should move from mapping to mitigation. Some of the response is obvious: support alternative suppliers for chokepoint components, build strategic reserves where reserves make sense, and invest in European FPGA and control-electronics capacity (a gap that also matters for defense and AI systems).

But Europe should also back technologies that could eliminate dependencies rather than merely diversify them. One example is adiabatic demagnetization refrigeration. ADR is a millikelvin cooling technology that does not require helium-3. The leading company pursuing continuous ADR for quantum computing is kiutra, a Munich-based spin-off from TU Munich, supported in part by European funding. Its SPROUT demonstrator achieved continuous sub-30 millikelvin cooling in a helium-3-free platform designed for superconducting quantum hardware.

ADR is not yet a production-scale replacement for dilution refrigeration in large quantum computers. As I argued in my comparison of ADR and dilution refrigeration, the cooling-power gap at scale remains significant. But that is exactly why this type of European deep-tech effort deserves targeted support. If kiutra or a similar company closes that gap, the result is not just another European supplier. It is the removal of a strategic helium-3 dependency for the entire industry.

The Missing Architectural Argument

The third gap, and the most consequential for long-term competitiveness, is the absence of an architectural thesis: a theory of how Europe competes when many of its quantum companies are individually 10 to 100 times smaller than their American counterparts. Money matters. But money without a competitive architecture merely funds a slower version of the same losing game.

The answer, I believe, is Quantum Open Architecture.

The early quantum computing market was dominated by vertically integrated vendors. IBM, Google, Rigetti, IQM, Quantinuum, and others each controlled large parts of the stack: processor, cryostat configuration, control electronics, calibration software, cloud interface, and system roadmap. The buyer got a working system with a single point of accountability. The buyer also got a single point of lock-in.

Quantum Open Architecture disaggregates that stack. A QPU from one vendor. Cryogenics from another. Control electronics from a third. Cabling from a fourth. Calibration software from a fifth. HPC integration from a sixth. As I described in Quantum Systems Integration, this is modularity as a procurement, integration, and sovereignty model.

The foundations already exist. The Quantum Utility Block reference architecture, developed by QuantWare, Q-CTRL, and Qblox, provides pre-validated blueprints for modular on-premises systems. The Q-PAC program at Elevate Quantum in Colorado shows that a quantum system can be assembled from interchangeable components in a commercially deployable way. The Netherlands’ Tuna-5 system proves the point from the European side: a quantum computer built through the Dutch supply chain, hosted on Quantum Inspire, assembled from interoperable components.

Tuna-5 is not the most powerful quantum computer in the world. It does not need to be. Its strategic significance is different. It shows that a country can build, operate, maintain, and upgrade quantum computing infrastructure without becoming dependent on a single vertically integrated foreign vendor. That is what compute sovereignty looks like in practice.

European quantum companies are often component and subsystem specialists. That is not necessarily a weakness. It can be an advantage if Europe adopts an architecture that rewards modularity, interoperability, and multi-vendor integration instead of trying to manufacture a European IBM by committee.

And if there is one thing the EU has proven it can do, it is standardization. Europe standardized mobile telephony through GSM, shaped global data governance through GDPR, pushed common charging through USB-C, and repeatedly used market access to set rules beyond its borders. The June 3 sovereignty package makes a similar argument for open source: open, interoperable ecosystems reduce dependency and vendor lock-in. Quantum needs the same argument applied to the full hardware-software stack.

The standards ecosystem is already moving. The Open Compute Project has a workstream on data center integration of quantum information infrastructure. ISO/IEC JTC 3 is developing quantum technology standards across terminology, benchmarking, supply chain, sensors, communications, and related areas. IEEE has active quantum standards projects covering hybrid quantum-classical computing, benchmarking, definitions, and energy efficiency. The QUB architecture provides de facto integration norms that are already being used commercially.

What is missing is the political decision to connect these efforts to European procurement. A sovereignty strategy built on Quantum Open Architecture would define open interface standards between system layers, fund integration test facilities where multi-vendor configurations can be validated, create procurement frameworks that strongly incentivize open-architecture systems for publicly funded infrastructure, and invest in the quantum systems integration expertise that turns a collection of components into a working machine.

That last point is personal. I am building a quantum systems integration business. I want to build it in Europe, where the component ecosystem is strong and where the policy environment should be naturally aligned with open architecture. But if Singapore, Switzerland, or the Gulf offers better conditions for scaling a deep-tech integration company, the economic logic of a growth-stage business becomes hard to ignore.

I am not unique in facing that calculation. The quantum engineers, systems architects, and integration specialists Europe trains are making the same assessment. Many conclude that the capital, speed, and scaling support they need is still easier to find elsewhere. The Quantum Act needs to change that arithmetic.

What the Quantum Act Must Fix

The Quantum Europe Strategy is a good diagnosis. The Quantum Act has to become the treatment. Four interventions matter most.

First, capital formation at scale. Europe needs mechanisms that can write €50–100 million checks into quantum hardware and infrastructure companies at the moment those companies need capital, not after an 18-month grant cycle. The EIF, EIC, national development banks, and the new Scaleup Europe Fund all matter. But the Quantum Act should create or designate a quantum-specific fast-track investment mechanism with strategic mandate, technical diligence capability, and the speed to compete with US strategic capital. The irony that In-Q-Tel can already move into European quantum companies while European institutions struggle to match that tempo should not be lost on the lawmakers drafting this legislation.

Second, open-architecture procurement. Every quantum computing system procured with EU public funds should use open, documented interfaces between system layers, unless a closed system can justify a clear and measurable performance advantage. This would align procurement with sovereignty objectives, reduce single-vendor lock-in, stimulate European component markets, and give commercial customers a reference architecture they can adopt with confidence. The Chips Act could not undo decades of semiconductor consolidation. The Quantum Act can still prevent the same lock-in dynamic from becoming inevitable in quantum computing.

Third, supply-chain mitigation with named chokepoints. The promised quantum risk assessment must not become another mapping exercise. It should produce funded actions: strategic reserves where appropriate, alternative suppliers for helium-3-dependent cryogenics, European control electronics and FPGA pathways, support for precision photonics and laser suppliers, and accelerated R&D into technologies such as continuous ADR that could remove dependencies altogether.

Fourth, resource concentration. The EU has 27 Member States. Not all of them need a quantum chip pilot line. Many can contribute meaningfully through quantum software, applications, sensing, communications, workforce development, cybersecurity, and adoption programs. But hardware investment should concentrate where the research base, industrial capability, supplier density, and national commitment are already strong. France’s PROQCIMA, the Delft ecosystem, Finland’s cryogenic and processor capabilities, and Germany’s systems integration strengths are not interchangeable with politically balanced spreadsheet allocations. The Quantum Act’s governance framework needs the mandate to make hard allocation decisions and the political support to defend them.

Another Acknowledgment, or an Answer?

The Commission’s tech sovereignty page opens with a number that should focus minds: Europe relies on non-EU countries for more than 80 percent of key digital products, services, infrastructure, and intellectual property. The June 3 Technological Sovereignty Package responds with legislation and strategy for semiconductors, cloud, AI, open source, and energy digitalisation. Those are the sectors where Europe’s dependency is already mature, visible, and politically expensive.

Quantum is different because the dependency is still being formed. Europe has competitive positions across the stack. It has component companies, research institutions, national programs, and public infrastructure. But the window to turn those strengths into sovereign industrial capability is closing.

The QuIC response to the Quantum Act call for evidence warned that Europe risks losing its edge unless it closes funding gaps and builds a full-stack ecosystem. The warning is familiar. Europe was warned about semiconductors. It was warned about cloud. It was warned about AI. In each case, the warning was accurate. In each case, the policy response was thoughtful, well structured, and too slow.

The valley of death between European quantum research and European quantum industry is not just a startup financing problem. It is a sovereignty problem, one I analyze at length in Quantum Sovereignty. If Europe’s quantum companies cannot scale, they will be absorbed, their IP will migrate, and Europe will access quantum computing through platforms built, hosted, and controlled by others — precisely the dependency the tech sovereignty agenda says it wants to reduce.

The Quantum Europe Strategy acknowledges the problem. The Quantum Act has to answer it. Europe does not need another document that says it invents but fails to scale. The Commission just found the political will to put two new laws behind semiconductors and cloud in a single sovereignty package. Quantum deserves the same urgency, because the lock-in is being negotiated now, before the first truly useful fault-tolerant systems arrive. The next strategy document that names the commercialization gap without closing it will be just another well-formatted acknowledgment. Europe has enough of those.