SEALSQ (Nasdaq: LAES) is pursuing a “Root-to-Qubit” strategy, integrating secure chips and post-quantum cryptography during the design phase of quantum computing infrastructure. The company’s focus extends beyond the quantum processors themselves, specifically targeting the classical electronics and software that control and secure these emerging systems. “Quantum computers will depend on classical systems for many of their most critical functions,” says Carlos Moreira, Founder and CEO of SEALSQ, outlining a partnership-focused approach to connect security expertise with companies developing quantum infrastructure and establish long-term growth opportunities.

SEALSQ’s Root-to-Qubit Strategy for Quantum Infrastructure Security

The strategy centers on IC’ALPS, a French custom chip design specialist acquired to bolster expertise in classical electronics supporting quantum processors, specifically circuits designed for cryogenic environments. This acquisition directly addresses the need for specialized components capable of functioning at extremely low temperatures, a critical requirement for many qubit technologies. The company’s approach extends to establishing connections between quantum systems through investments in Swiss-based Miraex, which develops photonic technology to convert microwave signals into optical signals.

WISeSat.Space provides a platform for deploying and testing post-quantum security in low Earth orbit. SEALSQ’s portfolio includes investments in companies pursuing diverse qubit architectures, with holdings in both, developing silicon spin qubits, and EeroQ, focused on qubits based on electrons held above liquid helium. This deliberate diversification allows it to assess and address security challenges across different quantum computing methodologies, ensuring its solutions are adaptable to emerging technologies.

The company believes a universal security framework is essential, regardless of the underlying qubit technology, and is actively working to develop hardware-based security measures applicable to both silicon spin and electron-based qubits, SEALSQ says. Beyond the development of quantum-specific hardware, it is also applying its security principles to existing infrastructure. Its majority investment in Wecan Group provides a pathway to integrate post-quantum protection into digital identity, secure data exchange and compliance workflows used by financial institutions.

This dual approach, securing future quantum systems while fortifying current infrastructure, reflects a comprehensive strategy to mitigate the risks posed by quantum-enabled attacks. Quantix Edge Security, another portfolio company based in Spain, is developing local semiconductor testing and personalization capabilities, including secure key provisioning, further strengthening this layered security approach. The company’s Root-to-Qubit strategy emphasizes embedding a hardware Root of Trust that enables trusted hardware, authenticated operators and verifiable data integrity across the entire quantum infrastructure.

Scaling quantum computing requires not only increasing qubit counts but also ensuring a secure and reliable ecosystem for their operation, according to SEALSQ. SEALSQ aims to address both challenges simultaneously, positioning itself as a key supplier of security technologies for the emerging quantum market and expanding applications for its existing semiconductor expertise. The company is actively seeking opportunities to integrate its technologies into the designs of quantum infrastructure developers, encouraging long-term relationships and supporting future commercial adoption.