SEALSQ Corp

SEALSQ Corp

SEALSQ Corp was incorporated in 2022 as a spin-out from WISeKey International Holding, bringing together over two decades of cryptographic engineering heritage. The firm's wealth origin traces to the broader WISeKey ecosystem, founded by Carlos Moreira in 1999; SEALSQ operates as an independent entity publicly traded on Nasdaq. SEALSQ invests internal capital and minority-market proceeds into developing post-quantum cryptography (PQC) silicon, secure microcontroller units, and firmware-validation hardware. Its primary asset classes include semiconductor design, embedded security software, and cryptographic IP licensing. Confirmed development contracts include collaborations with the European Space Agency and partnerships with semiconductor foundries for PQC chip production. Geographic focus spans Switzerland, the United States, and broader European semiconductor hubs. The company reported roughly 80 employees as of its 2024 annual filing (per SEC, May 2025). SEALSQ maintains R&D facilities in Switzerland and sales offices in the US. It also operates a philanthropic arm, the SEALSQ Foundation, which funds quantum-safe cybersecurity education initiatives. May 2025: Announced a partnership with a major Asian semiconductor foundry to produce its first PQC-enabled chip samples (per company press release, May 2025). SEALSQ's structural differentiator is its spin-out posture from an established cybersecurity parent — it retains access to WISeKey's patent portfolio while operating as a lean, publicly funded standalone firm. This allows it to target post-quantum security at a time when most competitors remain pre-revenue or privately backed.