SEALSQ And EeroQ Advance Post-Quantum Security Solutions
SEALSQ Corp (NASDAQ: LAES), a global leader in semiconductors, Public Key Infrastructure (PKI), and post-quantum cybersecurity, has announced a significant second strategic investment in EeroQ. SEALSQ plans to use its “Quantum Made in USA” strategy to lead the global competition for secure and scalable quantum technology.
SEALSQ's SEALQUANTUM.com Quantum Investment Fund, founded in 2025, invested over $100 million in bootstrapping quantum startups. Following a December 2025 investment, this latest tranche shows a growing relationship between SEALSQ's secure silicon and post-quantum cryptography expertise and EeroQ's unique hardware.
Scalability Bottleneck Solution: EeroQ
This partnership relies on EeroQ's quantum architecture, which uses electrons trapped on superfluid helium (eHe). Unlike superconducting or trapped-ion devices, EeroQ's technique can scale from thousands to millions of electron spin qubits cost-effectively.
One of EeroQ's greatest technical achievements is solving the industry's “wire problem”. EeroQ has revealed a control architecture that can manage one million qubits with fewer than 50 physical control lines, whereas existing quantum implementations require thousands, causing thermal and engineering issues. EeroQ leads the way in commercial quantum processor development by reducing power dissipation and system complexity.
EeroQ's technology is also CMOS-compatible, thus it can be made using silicon chip industry fabrication methods. When combined with a tiny form factor that might make quantum processors as small as a thumbnail, this compatibility allows for rapid commercial adoption and infrastructure integration.
The “Quantum Highway”: Vertical Integration Vision
The Quantum Highway approach requires SEALSQ to invest in EeroQ, not merely for financial gain. This industry concept proposes a "Quantum Security Vertical Stack" to integrate post-quantum cryptography (PQC), classical computing, and future quantum processing safely and uninterrupted.
SEALSQ founder and CEO Carlos Moreira said, “This expanded investment in EeroQ represents a significant milestone in SEALSQ’s Quantum Made in USA strategy and in the establishment of a Quantum Highway.” EeroQ's hardware and SEALSQ's Quantum Shield QS7001 and VaultIC safe parts will be combined to create end-to-end systems for critical infrastructure, government agencies, and national defense.
To demonstrate this capability, the two companies aim to build a PoC at the SEALSQ Quantum Center of Excellence in Geneva. This platform will show how EeroQ's quantum processing technologies, post-quantum resistant systems, and secure semiconductor hardware integrate smoothly, giving enterprises a roadmap for future-proof infrastructures.
Emerging Global Footprint and “Quantum Corridor”
The “Quantum Made in USA” slogan promotes American sovereignty, yet SEALSQ is worldwide. This company has invested heavily in Europe and the US, putting resources along the Quantum Corridor:
Spain: SEALSQ and its parent company, WISeKey International Holding AG, have pledged $12 million and €20 million from the Spanish government's SETT.ES program to create a Post-Quantum Semiconductor Personalization and Test Center in Murcia.
Switzerland: PQC-secured blockchain identities will be integrated into enterprise and financial systems through a $3.5 million Group investment.
France: The purchase of top ASIC designer IC'ALPS is expected to speed up the production of customized, quantum-ready silicon.
WISeSat deployment cost $10 million.Space to launch a network of satellites for global encrypted communications following the quantum revolution.
Investment in ColibriTD attempts to boost semiconductor wafer yields using quantum power.
Future: Ethics, Engineering, and Financial Momentum A commitment to quantum ethics distinguishes EeroQ. According to SEALSQ's goal of establishing reliable, human-centric technological ecosystems, co-founder Faye Wattleton's company has been studying ethical frameworks for responsible quantum development since 2018. Technical leadership at EeroQ includes Princeton University professor CTO Steve Lyon and Chief Science Officer Johannes Pollanen, who just completed a 9,600-square-foot Chicago research and development center.
SEALSQ's strong financial performance reflects this strategy. Sales rose 66% in 2025, and cash reserves exceeded 425 million. By 2028, SEALSQ's commercial pipeline will exceed $200 million, suggesting market demand for secure and post-quantum semiconductor technology.
Despite the excitement, industry observers warn that technological and materials science challenges must be overcome before quantum systems can be widely employed commercially for years. By combining safe post-quantum cryptography with cutting-edge qubit architecture, SEALSQ is leading the cybersecurity-next-generation computing convergence.
As the race for quantum dominance heats up globally, SEALSQ-EeroQ is working to ensure that the next generation of quantum computing is strong, scalable, sovereign, and safe. Through its "Quantum Highway," SEALSQ is creating a future where post-quantum, quantum, and safe classical processing may coexist in a reliable, autonomous environment.











