SEALSQ Expands its Quantum Highway™: Nine Interconnected Hubs Now Link La Línea, Murcia, Toulouse, Meyreuil, Grenoble, Geneva, Lausanne and the Future Swiss-based Center, and Extend the Sovereign Quantum Corridor to Chicago with EeroQ

Geneva, Switzerland, Sept. 09, 2026 (GLOBE NEWSWIRE) --

The Quantum Highway physically connects every layer of the SEALQUANTUM.com Sovereign Quantum Vertical Stack, from post-quantum device manufacturing in Spain, through secure-element and ASIC design in France, to trust, photonics and orbital infrastructure in Switzerland, and now adds a transatlantic link to the United States under the “Quantum Made in USA” strategy

SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or the "Company"), a global leader in secure semiconductors, PKI and post-quantum cybersecurity technologies, and its parent company WISeKey International Holding Ltd (SIX: WIHN; NASDAQ: WKEY) ("WISeKey"), today provided an update on the SEALSQ Quantum Highway™, the physical and digital backbone of the Quantum Corridor first announced in July 2025. The Quantum Highway now interconnects nine operational or planned hubs across Spain, France, Switzerland and the United States, each hosting a distinct layer of the SEALQUANTUM.com Sovereign Quantum Vertical Stack.

The update follows the announcement that SEALQUANTUM.com, SEALSQ’s $200 million internal quantum initiative, enters its second phase of capital deployment this month, with more than $65 million already deployed and an additional $100 million earmarked for closing through the end of 2027. The SEALSQ Quantum Highway is the geographic expression of that strategy: capital is deployed into hubs that are physically and contractually connected, so that silicon designed in one location is manufactured, personalized, secured, launched and operated along a single auditable chain of trust.

The SEALSQ Quantum Highway: Nine Hubs, One Root-to-Qubit-to-Space Chain of Trust

Running from the Strait of Gibraltar to the Swiss mountains, and now across the Atlantic to Chicago, the SEALSQ Quantum Highway connects the following hubs:

Hub	Entity	Role in the Sovereign Quantum Vertical Stack
La Línea de la Concepción, Spain	LLG4IR.com Cross-Border Center of Excellence (WISeKey / SEALSQ)	Gateway of the SEALSQ Quantum Highway. Post-quantum communication device manufacturing plant and initial manufacturing operations for another WISeKey subsidiary, WISeSat; cross-border deep-tech hub between Spain and Gibraltar, linked to Málaga TechPark.
Murcia, Spain	Quantix Edge Security (JV)	Spain’s first post-quantum semiconductor personalization and test center; €40 million budget including €19.6 million from the Spanish Government; €25 million revenue target. Injects trusted identities into every chip on the SEALSQ Quantum Highway.
Toulouse, France	IC’ALPS design center (100% SEALSQ)	ASIC and mixed-signal design for aerospace, space and secure applications; payload and control-electronics design for WISeSat and the Quantum Spatial Orbital Cloud (QSOC).
Meyreuil, Provence, France	SEALSQ France	Secure-element and post-quantum semiconductor engineering; home of the QS7001 Quantum Shield and QVaultTPM product lines and their FIPS 140-3 / Common Criteria EAL5+ certification roadmap.
Grenoble, France	Quobly and IC’ALPS headquarters	Silicon spin-qubit quantum processors (Quobly, €115 million Series A led by Bpifrance, STMicroelectronics and SEALSQ) co-located with IC’ALPS Cryo-CMOS and ASIC design under the $5 million SEALSQ-Quobly commercial agreement.
Geneva, Switzerland	SEALSQ, WISeKey and WISeSat.Space headquarters, Pont-Rouge	Root of Trust, PKI, quantum strategy and the Geneva Quantum Center of Excellence; WISeSat constellation operations and the QSOC program, whose first launch with SpaceX is scheduled for Q4 2026.
Lausanne, Switzerland	Miraex (100% SEALSQ), EPFL Innovation Park	Thin-film lithium tantalate photonic integrated circuits for microwave-to-optical transduction, QKD, distributed quantum computing and satellite-to-Earth quantum links.
Canton to be Announced, Switzerland	Future Quantum and Space Center (location under consideration)	Next Swiss hub on the SEALSQ Quantum Highway, intended to host quantum and space integration, testing and training capacity as SEALQUANTUM.com phase two deploys.
Chicago, Illinois, USA	EeroQ (SEALSQ strategic investee, $7.0 million; lead investor in upcoming round)	Transatlantic extension. Electrons-on-helium quantum computing and the anchor of SEALSQ’s “Quantum Made in USA” strategy; planned integration of SEALSQ post-quantum cryptography into EeroQ products.

How the Highway Works: Silicon Travels the Stack

The value of the SEALSQ Quantum Highway lies in the flows between its hubs rather than in any single site:

• A secure element or ASIC is designed in Meyreuil, Toulouse or Grenoble, on manufacturing platforms developed with GlobalFoundries under the SEALSQ–GF memorandum of understanding covering secure semiconductors, post-quantum cryptography and CryoCMOS.
• It is personalized in Murcia, where Quantix injects a unique, quantum-resistant identity anchored on the WISeKey Root of Trust operated from Geneva.
• It is integrated into post-quantum communication devices and WISeSat payloads manufactured in La Línea, or into Quobly quantum processors in Grenoble and, going forward, EeroQ systems in Chicago.
• It is interconnected through Miraex photonic chips from Lausanne, enabling quantum-secure links between processors, data centers and satellites.
• It is launched and operated through WISeSat and the QSOC program from Geneva, extending the same chain of trust into orbit, with a new center planned as the next integration and test facility on Swiss soil.
  

Each step generates commercial demand for the previous one. The $5 million SEALSQ–Quobly agreement signed on July 10, 2026, covering Cryo-CMOS ASICs, post-quantum secure elements, hardware Root-of-Trust, PKI and engineering services, is the first contract executed end-to-end along the Highway, from Grenoble design to Geneva trust services.

Sovereignty by Geography

The Highway deliberately spans four sovereign jurisdictions, each of which has co-invested in or validated a hub: the Spanish Government at Quantix in Murcia and the public-private LLG4IR.com framework in La Línea; the French Ministry of the Economy, Finance and Industrial and Digital Sovereignty, which approved the IC’ALPS acquisition, together with Bpifrance’s co-lead of Quobly’s Series A; the Space Command of the Swiss Armed Forces, whose multi-year pilot with WISeSat and SEALSQ completed in April 2026; and the United States, where the June 2026 White House Executive Order on quantum security frames SEALSQ’s Quantum Made in USA strategy with EeroQ.

Carlos Moreira, Founder, Chairman and CEO of SEALSQ and WISeKey, commented: "The SEALSQ Quantum Highway is the map of our strategy. When we launched the Quantum Corridor in La Línea in 2025, we said sovereign quantum technology would need physical infrastructure, not just intellectual property. Today a chip can be designed in Provence or Grenoble, personalized in Murcia, built into a satellite device in La Línea, interconnected with photonics from Lausanne, authenticated by our Root of Trust in Geneva and launched into orbit, and the same trusted foundation now reaches a quantum computer in Chicago. As SEALQUANTUM.com deploys its next $100 million, every new asset will be chosen for how it strengthens a hub on the SEALSQ Quantum Highway or adds a new one, starting with Switzerland to host the center."

Next Milestones on the SEALSQ Quantum Highway

• Q4 2026: first QSOC launch with SpaceX from the Geneva-operated WISeSat program; Quobly’s Alloy Pioneer first-generation quantum computer available via the cloud.
• 2026–2027: ramp-up of the Quantix personalization center in Murcia and of post-quantum device manufacturing in La Línea; completion of EeroQ’s financing round with SEALSQ as lead investor and start of PQC integration into EeroQ products.
• Through end-2027: deployment of the additional $100 million of SEALQUANTUM.com phase-two capital into assets accretive to the SEALSQ Quantum Highway, including the planned Quantum and Space Center which location is under discussion with several Cantons.
  

About WISeKey
WISeKey International Holding Ltd (“WISeKey”, SIX: WIHN; Nasdaq: WKEY) is a global leader in cybersecurity, digital identity, and IoT solutions platform. It operates as a Swiss-based holding company through several operational subsidiaries, each dedicated to specific aspects of its technology portfolio. The subsidiaries include (i) SEALSQ Corp (Nasdaq: LAES), which focuses on semiconductors, PKI, and post-quantum technology products, (ii) WISeKey SA, which specializes in RoT and PKI solutions for secure authentication and identification in IoT, blockchain, and AI, (iii) WISeSat AG which focuses on space technology for secure satellite communication, specifically for IoT applications, (iv) WISe.ART Corp which focuses on trusted blockchain NFTs and operates the WISe.ART marketplace for secure NFT transactions, and (v) SEALCOIN AG which focuses on decentralized physical internet with DePIN technology and houses the development of the SEALCOIN platform.

Each subsidiary contributes to WISeKey’s mission of securing the internet while focusing on their respective areas of research and expertise. Their technologies seamlessly integrate into the comprehensive WISeKey platform. WISeKey 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, WISeKey plays a vital role in securing the Internet of Everything. Trusted by the OISTE/WISeKey cryptographic Root of Trust, WISeKey provides secure authentication and identification for IoT, blockchain, and AI applications. The WISeKey Root of Trust ensures the integrity of online transactions between objects and people. For more information on WISeKey’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 concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. 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; and the risks discussed in SEALSQ's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ 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.

SEALSQ Corp. Carlos Moreira Chairman & CEO Tel: +41 22 594 3000 info@sealsq.com

SEALSQ Investor Relations (US) The Equity Group Inc. Lena Cati Tel: +1 212 836-9611 lena.cati@theequitygroup.com