SEALSQ Corp Invests as Lead Investor in Quobly’s €130M Series A

SEALSQ Corp participated as a lead investor in Quobly’s €130 million Series A financing, with the investment routed through the SEALSQ Quantum Fund. The deal connected SEALSQ’s quantum-focused security initiatives with Quobly’s work on silicon-based quantum processors.

SEALSQ said the Quantum Fund investment supported Quobly’s industrialization of silicon-based quantum processors and the deployment of its first commercial systems. SEALSQ also tied the financing to a technical partnership that began in November 2025, and said the transaction aligned with its Quantum Vertical Sovereign Stack strategy.

The companies’ earlier collaboration involved integrating post-quantum cryptography and hardware Root-of-Trust into silicon-based quantum architectures. SEALSQ described a combination of Quobly’s scalable FD-SOI quantum processors and SEALSQ’s quantum-resistant secure chips, including its QVault TPM and PQC solutions, to develop secure-by-design quantum computing systems.

SEALSQ said its SEALSQ Quantum Fund launched in February 2025 and grew from $20 million to $200 million as of the date of the announcement. It also said Carlos Moreira, CEO of SEALSQ, would join Quobly’s Board of Directors. “SEALSQ’s participation as a lead investor in Quobly’s Series A financing represents a significant milestone in the execution of our Quantum Vertical Sovereign Stack strategy. This investment made via the SEALSQ Quantum Fund, builds on the SEALSQ - Quobly technical partnership established in 2025 and reflects a shared commitment to advancing the next generation of secure quantum technologies. By integrating Quobly’s pioneering silicon quantum processors with our post-quantum cryptography and hardware security technologies, we are accelerating the development of truly secure quantum computers.” “This investment from SEALSQ builds on the technical collaboration initiated in 2025 and supports our transition toward industrial deployment. As we bring our first silicon-based quantum computers to market, trusted semiconductor technologies and secure computing environments will become increasingly important for real-world adoption.” Forward-looking statements in the communication covered expectations about future developments and outcomes for SEALSQ and its businesses.