SEALSQ Corp, a subsidiary of WISeKey International Holding AG, announced that it will begin rolling out its integrated quantum vertical stack during the third quarter of 2026. The announcement, made on April 16, 2026, marks the transition from development to market deployment for a solution that combines post‑quantum semiconductor, satellite, blockchain, and identity technologies.
The stack centers on the QS7001 post‑quantum microcontroller, which embeds NIST‑standardized post‑quantum cryptography into a secure element. It is paired with a satellite‑based secure communication layer, a blockchain framework for immutable audit trails, and a digital‑identity module that ties together authentication and authorization across edge devices. Together, the four pillars create a single, end‑to‑end security platform that can be deployed in automotive, medical, and critical‑infrastructure environments.
The move responds to the growing threat that quantum computers pose to current encryption standards. By offering a vertically integrated solution, SEALSQ aims to capture demand from sectors that require long‑term security guarantees and have limited upgrade cycles. The automotive, medical, and critical‑infrastructure markets are particularly sensitive to data integrity and are expected to drive early adoption of quantum‑resistant solutions.
WISeKey’s financial guidance underscores the strategic importance of the rollout. Preliminary unaudited revenue for the first nine months of 2025 reached $10.6 million, a 39 % year‑over‑year increase, and the company reaffirmed its FY 2025 revenue guidance of $18 million to $21 million. For FY 2026, WISeKey projects revenue growth of 50 % to 100 % year‑over‑year, with SEALSQ expected to be a significant contributor to that expansion.
CEO Carlos Moreira said, “At SEALSQ, we are not just preparing for the quantum era, we are engineering it vertically, securely, and at scale.” He added, “We are building a quantum vertical stack that integrates every critical layer of trust, from quantum‑ready hardware and post‑quantum cryptography to secure operating systems, edge and IoT integration, and resilient satellite infrastructure.” The announcement signals a decisive step toward establishing a competitive moat against traditional semiconductor and cybersecurity vendors.
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