SEALSQ's Sister Company, WISeSat.Space, Completes Business Combination with Columbus Acquisition Corporation

Geneva, Switzerland, Oct. 02, 2026 (GLOBE NEWSWIRE) --

WISeSat.Space Ordinary Shares Begin Trading on Nasdaq Under Ticker Symbol “SAIQ”

Listing Marks a New Chapter in WISeSat.Space’s Mission to Bring Cybersecurity to Space and Deliver Trusted Satellite Connectivity

SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or "Company"), a company that focuses on developing and selling Semiconductors, PKI, and Post-Quantum technology hardware and software products, today announced that its sister company, WISeSat.Space Holdings Corp. (“WISeSat.Space”) (Nasdaq: SAIQ), as space technology company and a subsidiary of WISeQey Corp. (formerly known as WISeKey International Holding AG, “WISeQey”) (SIX: WIHN; Nasdaq: WKEY), a global quantum cybersecurity and space IoT company, has completed its previously announced business combination with Columbus Acquisition Corp. (“CAC”).

Effective today, October 2, 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 September 30, 2026, and the transaction closed on October 1, 2026.

The Nasdaq listing supports WISeSat.Space’s ambition to expand its space infrastructure while leveraging 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, 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.”

Mr. 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, defense, 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.

Advisors
Maxim Group LLC served as WISeSat.Space’s financial advisor. Ellenoff Grossman & Schole LLP represented WISeSat.Space as legal counsel ad Harney Westwood & Riegels (BVI) LP represented WISeSat.Space as British Virgin Islands legal counsel. Loeb & Loeb LLP represented CAC as legal counsel and Ogier represented CAC as Cayman legal counsel. The Equity Group, Inc., served as WISeSat.Space’s strategic communications advisor.

About WISeSat.Space
WISeSat.Space Holdings Corp. is a space technology company focused on secure satellite communications for Internet of Things applications. Its approach combines satellite infrastructure with cybersecurity and digital identity technologies to support trusted communications between connected devices and ground-based systems.

About WISeQey

WISeQey Corp. (“WISeQey”), is a British Virgin Islands holding company focused on post quantum cybersecurity, digital identity, space technology and the Internet of Things (IoT). Its operating subsidiaries and technology platforms address distinct parts of this portfolio:

1. SEALSQ Corp (Nasdaq: LAES) develops secure semiconductors, public key infrastructure (PKI) and post-quantum security products.
2. WISeSat AG develops space technology and secure satellite communications, particularly for IoT applications.
3. WISeID provides digital identity, authentication, secure access and digital signing for individuals, enterprises and connected devices.
4. WISe.ART Corp operates the WISe.ART marketplace, which uses blockchain technology to support trusted digital asset and NFT transactions.
5. SEALCOIN AG develops decentralized physical infrastructure network (DePIN) technology and the SEALCOIN platform.
   
   

Each subsidiary contributes to WISeQey’s mission of securing the internet while focusing on their respective areas of research and expertise. Their technologies seamlessly integrate into the comprehensive WISeQey platform. WISeQey secures digital identity ecosystems for individuals and objects using blockchain, AI, and IoT technologies. With over 1.6 billion microchips deployed across various IoT sectors, WISeQey plays a vital role in securing the Internet of Everything. Trusted by the OISTE/WISeQey cryptographic Root of Trust, WISeQey provides secure authentication and identification for IoT, blockchain, and AI applications. The WISeQey Root of Trust ensures the integrity of online transactions between objects and people. For more information on WISeQey’s strategic direction and its subsidiary companies, please visit www.wisekey.com.

About SEALSQ:
SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable.

SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries.

For more information on our Post-Quantum Semiconductors and security solutions, please visit www.sealsq.com.

Forward-Looking Statements
This communication expressly or implicitly contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 concerning SEALSQ Corp, WISeSat.Space, WISeQey and their respective businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, the anticipated benefits of the business combination, WISeSat.Space’s plans to expand its satellite infrastructure and develop post-quantum-secure satellite communications, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Words such as “aims,” “ambition,” “anticipates,” “expects,” “intends,” “plans,” “will” and similar expressions are intended to identify forward-looking statements. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ's ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; WISeSat.Space’s ability to realize the anticipated benefits of the business combination, operate as a public company and maintain its Nasdaq listing; the success, cost and timing of satellite launches and operations; competition in the satellite and cybersecurity markets; and the risks discussed in SEALSQ’s and WISeSat.Space's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ and WISeSat.Space with the SEC.

SEALSQ Corp is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.

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