SEALSQ introduces Quantum Highway platform
SEALSQ has outlined plans for what it calls the Quantum HighwayTM, a vertically integrated platform designed to bake trust and post-quantum security directly into quantum systems, starting at the silicon level.
The initiative positions the company as an end-to-end player spanning secure semiconductors, post-quantum cryptography and quantum computing. Instead of treating security as an add-on, SEALSQ says it is embedding cryptographic identity and sovereignty at the hardware layer from day one.
From quantum corridor to global highway
The Quantum Highway grew out of a pilot “Quantum Corridor” linking sites in Spain, France and Switzerland. The proof-of-concept aimed to show that cross-border quantum and post-quantum collaboration could work under a unified, hardware-rooted trust framework.
As SEALSQ expanded partnerships and development activities into the US, India, South Korea and the UAE, the corridor evolved into a globally scalable architecture. The resulting Quantum Highway is positioned as sovereign by design, allowing different regions to maintain control while interoperating securely.
At the technical core is a hardware root key anchored in secure silicon. This root establishes immutable device identity and governs the entire lifecycle of each component, from manufacturing and provisioning through updates and eventual decommissioning. According to the company, this creates end-to-end trust continuity across classical, post-quantum and quantum environments.
Acquisitions underpin vertical integration
A major part of the strategy is a string of acquisitions and investments aimed at tightening the link between quantum processors and secure semiconductor technology. SEALSQ has fully acquired French ASIC specialist IC’ALPS to strengthen custom chip design, and taken a strategic stake in ColibriTD to explore quantum-enhanced approaches for wafer yield optimization and side-channel mitigation.
Further moves include a proposed investment in Quobly to bring post-quantum security into quantum microelectronics, backing US-based EeroQ’s electrons-on-helium quantum computing approach, and a $10m investment in secure, post-quantum-ready satellite IoT communications.
In Spain, SEALSQ participates in the Quantix EdgeS joint venture, where it focuses on post-quantum RISC-V chip design alongside government and industry partners. An additional joint venture in India is setting up a custom design, test and personalization hub to expand the company’s secure semiconductor footprint in Asia.
Bridging today and tomorrow
By aligning these activities under a single roadmap, SEALSQ says it governs quantum processors and hybrid quantum-classical systems using the same identity and lifecycle framework already deployed in its secure chips. The aim is to create a future-proof bridge between existing digital infrastructure and emerging quantum capabilities.
While quantum hardware will evolve rapidly, the company argues that trust, identity and sovereignty must remain stable over decades. SEALSQ anchors those principles in hardware and scales them globally through the Quantum Highway, betting on becoming a foundational supplier for regulated and critical infrastructure markets in the post-quantum era.
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