Quobly & SEALSQ to embed post-quantum security in silicon
Quobly and SEALSQ have announced a partnership looking to integrate post-quantum security capabilities directly into silicon-based quantum computing platforms.
The alliance between the two will combine Quobly's silicon spin qubit architecture, which is compatible with current CMOS manufacturing processes, with SEALSQ's post-quantum cryptography and hardware root-of-trust technologies.
By embedding security into the quantum hardware itself, both companies plan to support long-term fault tolerance and scalable deployment for industrial quantum computing applications.
The move aligns with shifting demands from sectors such as defence, finance, and critical infrastructure, where organisations increasingly require assurance that quantum systems are resistant to the potential risks introduced by advanced quantum attacks on classical cryptography. The collaboration is expected to support both firms' expansion efforts, especially in the U.S. market, where secure computing platforms for sensitive applications are in growing demand.
"At Quobly, our focus is on building scalable quantum processors using industrial-grade semiconductor technology. Exploring complementarities with post-quantum security is a natural step as quantum computing moves toward real-world applications," said Maud Vinet, Co-Founder and CEO of Quobly. She added "This collaboration with SEALSQ allows both teams to combine expertise to accelerate U.S. market expansion and strengthen their positions in the defense and security sectors."
Technical foundations
Quobly's contribution will centre on fully silicon-based quantum processors using technology that enables the fabrication of large arrays of silicon spin qubits. The company's hardware leverages the existing semiconductor manufacturing ecosystem, featuring cryogenic control electronics and scalable interconnects designed for assembly into large, fault-tolerant quantum systems.
SEALSQ specialises in post-quantum semiconductors, secure elements, and hardware-anchored root-of-trust technologies. Its product portfolio includes secure elements and TPM chips designed to ensure trusted execution and authentication, as well as quantum-safe communication stacks for sectors such as IoT, automotive, and satellite infrastructure.
Strategic benefits
The organisations indicate that combining their technologies will allow for quantum-resistant security measures to be integrated from the earliest design stages of future quantum systems. SEALSQ anticipates early access to Quobly's silicon qubit platform, which will assist in adapting its post-quantum secure modules to requirements specific to quantum computers designed for high-assurance environments.
Both companies intend for the collaboration to accelerate relevance in sectors with high security requirements and extend their reach in the United States, enhancing their positions in applications where secure and scalable computing architectures are essential.
"The convergence of secure semiconductor technologies and quantum computing is essential to protect the digital infrastructures of the future. By bringing together SEALSQ's post-quantum Root-of-Trust technologies and Quobly's scalable quantum platform, we are laying the foundations for sovereign quantum systems that Europe can fully control, trust, and industrialise. This partnership strengthens the foundations for next-generation secure computing systems and accelerates Europe's path toward quantum independence," said Carlos Moreira, Founder and CEO of SEALSQ.
