What Is Isentroniq? What Problem Is It Solving and Who Funded Its €7.5M Round?

Quantum Computing’s Hidden Roadblock. The Wiring Problem.

Quantum computing promises to transform industries from medicine to energy, unlocking computational speeds that make today’s supercomputers look obsolete. But while tech giants like IBM, Google and Amazon push for larger qubit counts, a fundamental and often overlooked problem always threatens the progress: WIRING.

At the heart of every quantum computer are qubits, quantum bits that must operate at temperatures near absolute zero to remain stable. To control and read these qubits, thousands of ultra-thin wires must connect them to external electronics through cryogenic chambers known as dilution refrigerators.

The issue? Each wire introduces heat, bulk and cost. Beyond a few hundred qubits, systems become unmanageable: physically, thermally and economically. Expanding to millions of qubits, the threshold for true fault-tolerant quantum computing, would require facilities the size of stadiums and billions in investment.

This “wiring wall” has quietly become quantum computing’s greatest engineering challenge.

Isentroniq’s Breakthrough Technology

Enter Isentroniq , a Paris-based deeptech startup taking aim squarely at this wiring crisis. Founded to solve quantum’s most practical scaling problem, Isentroniq develops next-generation cryogenic interconnects, a wiring solution that drastically reduces heat transfer, physical space and cabling complexity.

The company claims its architecture can integrate up to 1,000 times more qubits within existing cryostats, effectively rewriting the scaling laws of quantum hardware. By improving heat management and connectivity density, Isentroniq’s technology could cut the cost of a million-qubit machine from tens of billions to roughly €50 million.

If successful, this would make large-scale, fault-tolerant quantum computing not only technically feasible but commercially viable, a leap that could bring quantum computation out of specialized labs and into mainstream industry applications.

Funding the Future of Scalable Quantum Hardware

To accelerate its mission, Isentroniq has secured €7.5 million in seed funding led by Heartcore, with participation from OVNI Capital, Kima Ventures, iXcore, Better Angle and Epsilon VC, alongside institutional support from Bpifrance and the French National Research Agency (ANR) under the France 2030 innovation initiative.

This capital infusion will help expand the startup’s engineering team, advance R&D on its proprietary wiring system and strengthen industrial partnerships.

Adopting a fabless model, Isentroniq focuses on design and system architecture while relying on specialized global partners for production. This approach ensures industrial-grade quality while avoiding the capital burden of owning manufacturing infrastructure, a model proven effective in semiconductor innovation.

Founders Behind the Innovation

Isentroniq was founded by two visionaries combining scientific depth with operational execution:

• Dr. Paul Magnard, PhD from ETH Zurich and former lead architect at Alice & Bob, brings cutting-edge expertise in superconducting qubits and has authored multiple publications in Nature.
• Théodore Amar, formerly at Bain & Company and Hilti, leads the business and strategic expansion efforts, ensuring scalability and market readiness.

Together, they’re addressing what Magnard calls “the wiring crisis”, the fundamental thermal and spatial limits constraining quantum scalability. Their goal is clear: turn wiring from a bottleneck into an accelerator.

Competitive Landscape. Filling the Missing Layer in Quantum Hardware

Most quantum startups focus on qubit design, control electronics or cooling systems. Very few tackle wiring as a holistic engineering problem. Isentroniq is carving out a new niche: an enabling layer that connects the qubit hardware to classical control systems without introducing instability.

This positioning makes it complementary, not competitive, to quantum hardware builders like IBM, Google, Rigetti, IQM and Alice & Bob, all of whom rely on superconducting qubits and face identical wiring constraints.

In essence, Isentroniq is building the connective tissue of tomorrow’s quantum machines, the invisible infrastructure that could determine who wins the race to large-scale quantum advantage.

Future Roadmap. From Prototype to Scalable Infrastructure

Isentroniq’s short-term roadmap is both ambitious and strategic. The startup plans to release its Minimum Viable Product (MVP) in 2026, ready for integration into pilot systems built by quantum hardware developers.

Within the following two years, the company aims to transform this prototype into a fully commercial solution, scaling manufacturing through its network of specialized cryogenic partners.

The long-term vision: making superconducting quantum computers deployable in datacenters, transitioning from lab-scale prototypes to reliable, industrial-scale infrastructure that powers real-world applications in materials science, finance, and climate modeling.

A Global Turning Point for AI & Quantum Governance

Isentroniq’s breakthrough also reflects a larger European trend: strategic investment in foundational deeptech. Under the France 2030 initiative, the country has positioned itself as a leading hub for quantum and AI innovation, channeling public and private funding toward industrial sovereignty.

Globally, quantum computing is shifting from theoretical ambition to hardware realism. Governments, investors and startups are coalescing around one key insight which is scaling quantum systems requires new engineering paradigms, not just more powerful algorithms.

Isentroniq’s work fits squarely into this movement, bridging quantum physics, materials science and precision manufacturing. Its innovation represents the kind of infrastructure advancement that could define Europe’s competitive edge in the next technological era.

The Futurism Today’s view in this Quantum revolution!

In the race to build the world’s first million-qubit computer, the winners may not be those designing faster qubits, but those solving the problems that make scaling possible and by tackling quantum’s most underestimated challenge, Isentroniq is redefining what “hardware innovation” really means in the quantum age.

Its approach is to merge deep physics with pragmatic engineering that captures a truth that will shape the next decade. As the industry edges closer to commercial-scale systems, Isentroniq’s technology could quietly become the backbone of the quantum revolution , an unseen enabler of the world’s most powerful machines. And all of us can say this with confidence that The Future is Today!