WISeKey International Holding Ltd (SIX: WIHN, NASDAQ: WKEY) reported $19.3 million in revenue for 2025, representing 62% year-over-year growth, according to a CEO letter to shareholders issued May 6.

The cybersecurity and semiconductor company's subsidiary SEALSQ contributed the majority of revenue performance and grew 66%. Fourth quarter 2025 revenue reached $8 million, doubling the prior year period. First quarter 2026 revenue totaled $4.2 million, representing 200% growth versus the first quarter of 2025.

WISeKey closed 2025 with $429 million in cash and short-term investments, which increased to over $535 million as of April 2026, according to CEO Carlos Moreira's letter.

The company's SEALSQ division has a commercial pipeline exceeding $200 million for the 2026-2029 period, focused on QS7001 and QVault TPM platforms. The QS7001 platform completed EAL5+ certification and NIST validation, positioning the company to begin production revenues in late 2026.

WISeKey expanded its SEALSQ Quantum Fund capacity to $200 million and made investments in IC'ALPS, Quantix Edge Security, WeCan Group, EeroQ, and ColibriTD. The company has secured access to 21 launched satellites through its WISeSat division, with 14 currently operational.

The company expects 50% to 100% revenue growth in 2026, driven by SEALSQ's commercial acceleration. Planned milestones include first commercial production revenues from QS7001, completion of the WISeSat Nasdaq listing, and opening of a Geneva Quantum Centre of Excellence.

WISeKey operates through subsidiaries including SEALSQ Corp (NASDAQ: LAES), which focuses on semiconductors and post-quantum technology, along with divisions covering satellite communication, blockchain NFTs, and decentralized internet technology.