SEALSQ Corp. (NASDAQ: LAES), a developer of semiconductors and post-quantum cryptography solutions, said its engineering team is working to integrate advanced security technology into WISeSat’s next satellite launch scheduled for November 2025. The mission will introduce satellites equipped with post-quantum cryptographic chips designed to safeguard space-based communications and financial transactions against the emerging risks of quantum computing.
The launch will expand WISeSat’s existing constellation of 22 satellites, which currently provide secure Internet-of-Things connectivity for industrial and commercial users worldwide. SEALSQ said the new satellites will be equipped with its post-quantum cryptographic chips to establish a quantum-resilient framework for transactions in orbit.
The system is designed to enable secure satellite-to-satellite transactions powered by SEALCOIN decentralized trust management and Hedera Distributed Ledger Technology. By embedding quantum-resistant encryption and trusted digital identities via WISeKey’s Root of Trust and WISeID platform, the companies aim to create what they call the first blockchain-secured, post-quantum-ready satellite ecosystem.
The satellite communications market has been expanding rapidly as demand for secure and resilient connectivity grows. The sector was valued at about $90 billion in 2024 and is projected to reach $159.6 billion by 2030, according to industry estimates. Mobile Satellite Services, a segment covering voice and data services for remote land, sea, and air users, is one of the fastest-growing niches. Valued at $5.5 billion in 2023, the MSS market is forecast to reach as high as $9.6 billion by 2030, with some projections extending growth to $19.5 billion by 2032.
By combining post-quantum cryptography with blockchain-secured transactions, SEALSQ and WISeSat are positioning themselves to address rising demand for secure mobile-to-satellite and satellite-to-satellite communication networks. The companies said the November 2025 mission will be followed by additional launches, with plans to deploy five post-quantum-enabled satellites by the end of 2026. Each new satellite is expected to feature stronger PQC hardware, deeper Hedera ledger integration, and wider use of SEALCOIN for machine-to-machine payments and encrypted data exchange.
“SEALSQ is redefining the future of secure space transactions,” said Carlos Moreira, founder and chief executive officer of WISeKey, the parent company of WISeSat. “By combining post-quantum cryptography, blockchain trust, and SEALCOIN-powered exchanges, we are laying the foundation for a trusted, decentralized space economy that safeguards digital ecosystems for the quantum era.”
The announcement follows WISeSat’s successful January 2025 launch and highlights a broader effort by SEALSQ to integrate post-quantum protections into critical digital infrastructure. The company develops semiconductors, public key infrastructure, and hardware-based encryption solutions aimed at mitigating risks associated with quantum computing breakthroughs.
WISeSat.Space, the operator of the satellite constellation, currently provides quantum-secure IoT connectivity at low cost to industries requiring global coverage and resilient encryption. The planned November 2025 launch is expected to mark a step forward in extending these capabilities to financial transactions and broader digital ecosystems operating in orbit.
