Geneva, Switzerland, March 18, 2026 -- SEALSQ Corp ("SEALSQ" or "Company"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, today announced a strategic partnership with WISeSat.Space Corp. (“WISeSat”) to develop and operate the world's first commercial Quantum Spatial Orbital Cloud (QSOC). WISeSat which specializes in space-technology and secure satellite communications for IoT applications is a subsidiary of SEALSQ’s parent company, WISeKey International Holding Ltd (“WISeKey”), a leading global cybersecurity, blockchain, and IoT company.

The programme plans to deploy a 100-satellite constellation delivering quantum key distribution (QKD), quantum random number generation (QRNG), and post-quantum identity services as a subscription offering to enterprises and governments worldwide. The programme plans to deploy satellites incrementally from 2024 through Full Operational Capability (FOC) in 2033. At FOC, WISeSat is expected to operate a dedicated QSOC constellation for SEALSQ, and SEALSQ is expected to deliver a contractually guaranteed 99.9% uptime service-level agreement (SLA) to its customers. This project, which is subject to, amongst other requirements, final approval by the board of directors of SEALSQ, is believed to be the first such commitment ever made for a quantum security service.

A CLEAR DIVISION OF ROLES: INFRASTRUCTURE AND CLOUD

The QSOC is structured on a model familiar from the world's leading hyperscale data centres: one party owns and operates the physical infrastructure as a dedicated capacity provider; the other party owns and operates the cloud services that run on top of that infrastructure and contracts directly with end-customers.

WISeSat — Constellation Owner & Operator

Under the agreement, WISeSat acts as the principal owner and operator of the QSOC space segment. WISeSat designs, manufactures, launches and flies the satellites, and runs the associated ground segment, frequency licences, optical links and mission control for the constellation. From early Pico CubeSats to full SmallSat and Medium‑class quantum platforms at FOC, WISeSat provides dedicated orbital capacity, resilient hardware and 24/7 mission operations. WISeSat independently procures launches and infrastructure, maintains specialised engineering teams, assumes the technical and regulatory risk of running the constellation in its own name, and delivers this capacity to SEALSQ under a multi‑year, capacity‑based service arrangement with defined availability and performance levels.

SEALSQ — Quantum Spatial Orbital Cloud Owner & Operator

Flying on top of WISeSat’s dedicated infrastructure, SEALSQ acts as the principal for QSOC cloud services. SEALSQ deploys its proprietary quantum technology stack across the constellation and operates QSOC as a managed cloud platform, controlling the quantum payloads, software and security architecture, service catalogue, pricing and overall customer experience. SEALSQ intends to purchase long‑term, dedicated access to the WISeSat constellation and uses that capacity, together with its own semiconductor and cloud technologies, to deliver QSOC services in its own name to banks, enterprises, governments and defence agencies. Customers contract directly with SEALSQ and do not obtain rights to the underlying satellites or orbital infrastructure, enabling SEALSQ to scale cloud revenues without bearing the capital cost of constellation ownership, while WISeSat focuses on building and operating a high‑value orbital infrastructure platform.

COMMERCIAL FRAMEWORK

This clear separation mirrors the economics of modern co-location and cloud model: WISeSat provides the facility, power, and physical security – but in orbit – and SEALSQ provides the cloud platform, services, and direct customer relationships. The long‑term, capacity‑based agreement between WISeSat and SEALSQ will be designed to align incentives, with WISeSat rewarded for delivering reliable, high‑performance infrastructure and SEALSQ rewarded for driving adoption of QSOC cloud services across industries.

GLOBAL CONTEXT

The scientific foundation for the QSOC is well established. China’s Micius satellite demonstrated intercontinental QKD over 7,600 km in 2017. The EU’s EuroQCI initiative, backed by all 27 member states, is building quantum communication infrastructure with a satellite tier that SEALSQ is positioned to serve commercially. The US National Quantum Initiative has directed over $3 billion in federal investment. Singapore’s SpooQy-1 CubeSat demonstrated entangled-photon generation in orbit, a direct precursor to SEALSQ’s Phase I Nano satellite design.

These programmes have delivered the scientific proof-of-concept. What none of them has produced, and what SEALSQ and WISeSat are uniquely positioned to provide, is a commercially operated, SLA-backed quantum cloud platform available to any organisation in the world.