WISeSat.Space Holdings Corp. (NASDAQ: SAIQ) commenced trading on the Nasdaq Capital Market on October 2, 2026, following the completion of its business combination with Columbus Acquisition Corp. The listing establishes WISeSat.Space as a separately listed public company focused on post-quantum-secure satellite communications and Internet of Things connectivity.

The transaction was approved by Columbus Acquisition Corp. shareholders at an extraordinary general meeting on September 30, 2026. All remaining closing conditions were satisfied or waived by the parties prior to the closing date on October 1, 2026. SEALSQ Corp (NASDAQ: LAES) announced that WISeSat.Space is a subsidiary of WISeQey Corp., a global quantum cybersecurity and space IoT company.

Strategic mission and ecosystem integration

The Nasdaq listing supports the company’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.

Carlos Moreira, Chief Executive Officer of SEALSQ, WISeQey and WISeSat.Space, stated that the listing represents an extraordinary milestone for the company. He emphasized the need to combine satellite communications with digital identity, secure chips and post-quantum technologies to protect data from connected devices to the space network.

Working within the WISeQey technology ecosystem, including collaboration with sister company SEALSQ Corp, WISeSat.Space integrates hardware-based security, device authentication and post-quantum protection into its satellite communications architecture. These capabilities address current cybersecurity threats and evolving risks associated with future quantum computing.

Operational footprint and applications

WISeSat.Space has deployed satellites into orbit since 2024. The company is developing satellite connectivity designed to support secure communications for connected devices. Key application areas include remote monitoring, logistics, defense, and infrastructure management.

Transaction details and advisors

The deal transforms WISeSat into a publicly listed company via a special purpose acquisition company (SPAC) structure. Maxim Group LLC served as the financial advisor to WISeSat. Legal counsel included Ellenoff Grossman & Schole LLP and Harney Westwood & Riegels (BVI) LP for WISeSat, while Loeb & Loeb LLP and Ogier represented Columbus Acquisition Corp. The Equity Group, Inc., served as WISeSat’s strategic communications advisor.

About WISeQey and subsidiaries

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

1. SEALSQ Corp develops secure semiconductors, public key infrastructure 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.
4. WISe.ART Corp operates a marketplace using blockchain technology for trusted digital asset transactions.
5. SEALCOIN AG develops decentralized physical infrastructure network technology.

With over 1.6 billion microchips deployed across various IoT sectors, WISeQey secures digital identity ecosystems using blockchain, AI and IoT technologies. The WISeQey Root of Trust ensures the integrity of online transactions between objects and people.

WISeSat.Space Holdings Corp, a wholly-owned subsidiary of WISeSat.Space Corp., has filed a registration statement on Form F-4 with the U.S. Securities and Exchange Commission (SEC) regarding its proposed business combination with Columbus Acquisition Corp. The filing, submitted on May 29, 2026, outlines the transaction that will result in the combined entity trading on Nasdaq under the ticker symbol SAIQ. The registration statement has not yet been declared effective by the SEC.

The business combination is governed by a definitive Business Combination Agreement dated November 9, 2025, involving WISeSat, Columbus Acquisition Corp, WISeSat.Space Holdings Corp (Pubco), WISeKey International Holding Ltd, and WISeSat Merger Sub Corp. Upon completion of the transaction, WISeSat and Columbus Acquisition Corp will become subsidiaries of Pubco. The combined company plans to operate under the brand SPACEAIQ, reflecting a focus on Space Infrastructure, Artificial Intelligence, and Quantum Technologies, while the WISeSat brand will continue to serve the satellite business.

WISeSat is developing secure satellite infrastructure and space-based services to support trusted communications and digital identity. The company aims to provide persistent, secure connectivity for government communications, industrial IoT, and critical infrastructure monitoring by combining low-earth-orbit satellite assets with cryptographic technologies. As part of the WISeKey group, WISeSat intends to extend Root of Trust and quantum-resilient security architectures into space.

Carlos Moreira, Chief Executive Officer of WISeSat, stated that the filing marks an important milestone in the company's path to becoming a Nasdaq-listed space infrastructure company. He emphasized that the transaction reflects progress toward creating a European, quantum-secure satellite platform for sovereign and trusted connectivity. The completion of the proposed transaction remains subject to closing conditions, including the approval of Columbus Acquisition Corp shareholders, the effectiveness of the registration statement, and approval of the listing of Pubco's shares by Nasdaq.

Maxim Group LLC is acting as the exclusive financial advisor to WISeKey, while Ellenoff Grossman & Schole LLP is serving as legal advisor to WISeSat and Pubco. Loeb & Loeb LLP is acting as legal advisor to Columbus Acquisition Corp. Investors and interested parties may access the registration statement and related documents through the SEC's website at www.sec.gov or via WISeKey's website at https://www.wisekey.com/ .