SEALSQ and Quobly collaborate to integrate post-quantum security with CMOS silicon-spin-qubit systems
On 2025-11-21 SEALSQ (Nasdaq: LAES) and Quobly announced a collaboration to combine SEALSQ's post-quantum security and root-of-trust hardware with Quobly's CMOS-compatible silicon spin-qubit platform, defining native quantum-secure system architectures targeted at defense, security and U.S. strategic markets. SEALSQ separately signaled a memorandum of understanding regarding a potential strategic investment in and acquisition of Quobly (reported terms up to ~$200M, non-binding). The collaboration itself is disclosed via both companies and trade press.
Pairing a PQC-security vendor with a silicon-spin-qubit developer aligns quantum processing with quantum-resistant security for defense and critical-infrastructure markets and gives SEALSQ early access to a scalable qubit platform; the companion acquisition signal is a non-binding MOU without firm terms, so the established event is the collaboration, mid band.
A secure-by-design pairing of hardware root-of-trust with a CMOS-foundry-compatible qubit roadmap is a differentiated European/US sovereign-stack play; whether the potential SEALSQ-Quobly investment/acquisition converts from MOU to a definitive deal is the larger open question (and precedes SEALSQ's later lead in Quobly's 2026 Series A).