Swiss firm SealsQ and WiseKey’s satellite subsidiary WiseSat have launched a satellite on a Space X mission to enable real-time, low-power, IoT and cyber-security services worldwide.

SealsQ focuses on developing and selling semiconductors, PKI and post-quantum hardware and software. WiseKey is a cyber security, blockchain and IoT company.

The WiseSat satellite is part of the firm’s strategy to deploy a secure, resilient and sovereign constellation enabling real-time, low-power, IoT and cyber-security.

The satellite was placed into orbit aboard a Space X Falcon 9 Transporter 16. With this deployment, WiseSat continues to expand its constellation, offering enhanced coverage and improved data availability for industrial IoT applications, environmental monitoring, secure communications and critical-infrastructure protection.

“This successful launch with SpaceX represents a major step forward for WiseSat and for Europe’s capacity to operate sovereign space-based secure communications,” said Carlos Moreira, CEO of SealsQ, WiseKey and WiseSat. “The WiseSat constellation is designed to integrate seamlessly with SealsQ post-quantum chips, ensuring unprecedented levels of trust, privacy and resilience for the next generation of connected devices.”

The satellite is designed to enhance the current constellation through a series of technological innovations. These improvements deliver higher performance, greater resilience and broader application potential. Key features include software-defined radio (SDR) technology, enabling flexible in-orbit reconfiguration and adaptation to evolving communication standards, ensuring long-term relevance and operational efficiency.

Higher data-rate communications support faster, more robust and more secure data transfer for demanding IoT, cyber-security and mission-critical applications.

WiseSat provides secure command authentication and encrypted telemetry for Earth observation and defence missions. Beginning with its next launch planned for early 2026, the constellation will also support quantum-safe key distribution for critical infrastructure sectors, including energy, transportation and smart cities. The platform enables the secure onboarding of billions of IoT devices by delivering quantum-resistant digital identities from orbit, extending trusted connectivity even to remote or underserved areas.

Technologies from WiseKey (www.wisekey.com), SealsQ (www.sealsq.com) and Hedera are increasingly integrated across the WiseSat platform. This makes the constellation a benchmark for post-quantum security in space and supports the use of trusted digital tokens including SealCoin to enable secure space-to-ground transactions and tokenised satellite services.

WiseSat has recently expanded its ground infrastructure with a dedicated satellite antenna in La Línea, Spain, and additional installations planned in Switzerland. This growing network enhances real-time monitoring, mission control and the secure management of the expanding constellation.