SEALSQ Corp, a company that focuses on developing and selling semiconductors, PKI and post-quantum technology hardware and software products, has announced that its sister company, WISeSat.Space Holdings, a space technology company and a subsidiary of WISeQey Corp., a global quantum cybersecurity and space IoT company, has completed its previously announced business combination with Columbus Acquisition Corp. (CAC).
Effective 2 October 2026, WISeSat.Space ordinary shares have commenced trading on the Nasdaq Capital Market under the ticker symbol “SAIQ”.
The completion of the transaction establishes WISeSat.Space as a separately listed public company focused on post-quantum-secure satellite communications and Internet of Things connectivity. CAC shareholders approved the business combination at an extraordinary general meeting on 30 September 2026, and the transaction closed on 1 October 2026.
The Nasdaq listing supports WISeSat.Space’s ambition to expand its space infrastructure while using WISeQey’s expertise in cybersecurity, digital identity and secure semiconductors. WISeSat.Space aims to extend trusted connectivity beyond terrestrial networks, enabling connected devices to communicate securely through satellite infrastructure.
“The Nasdaq listing represents an extraordinary milestone for WISeSat.Space and for everyone who has contributed to this journey,” said Carlos Moreira, the chief executive officer of SEALSQ, WISeQey and WISeSat.Space. “I want to thank our employees, management team, technology partners, advisors, investors and all those whose dedication has made this achievement possible. Their commitment has helped turn our vision of bringing cybersecurity to space into a growing business.”
Moreira continued: “As more devices and essential services rely on satellite connectivity, trust and post-quantum security must be built into the infrastructure from the outset. Our ambition is to combine satellite communications with digital identity, secure chips and post-quantum technologies to help protect data from the connected device to the space network. This listing opens a new chapter in advancing that mission.”
Bringing cybersecurity to space
WISeSat.Space has deployed satellites into orbit since 2024 and is developing satellite connectivity designed to support secure communications for connected devices, including applications in remote monitoring, logistics, defence and infrastructure management.
Working within the WISeQey technology ecosystem, including collaboration with the Company, WISeSat.Space aims to integrate hardware-based security, device authentication and post-quantum protection into its satellite communications architecture. These capabilities are intended to help address both today’s cybersecurity threats and the evolving risks associated with future quantum computing.
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