WISeKey Reports Unaudited Preliminary H1 2026 Key Metrics; Revenue Up 115%, FY 2026 Guidance Reaffirmed

FY 2026 guidance of 50%–100% revenue growth underpinned by an active pipeline exceeding $225 million through 2029, new business initiatives and approximately $495 million in cash and short-term investments. Demonstrates continued execution across its quantum, space and digital identity platforms, highlighted by the filing of Form F-4 for the WISeSat–Columbus Acquisition Corp business combination, the launch of operations of Quantix, a post-quantum identity partnership with Wecan, and the integration of the WISeKey Quantum RootKey across SEALQuantum assets.

Geneva, Switzerland – July 13, 2026 – Ad hoc announcement pursuant to Art. 53 LR WISeKey International Holding Ltd (“WISeKey” or the “Company”) (SIX: WIHN; Nasdaq: WKEY), a global leader in cybersecurity, digital identity, post-quantum semiconductors and satellite technology, today announced preliminary unaudited financial highlights for the six months ended June 30, 2026, (“H1”) together with a summary of the key strategic milestones achieved year to date. Preliminary figures are unaudited and subject to completion of the Company’s half-year closing procedures. WISeKey expects to publish its full H1 2026 consolidated financial results in September 2026 and hold a half-year earnings conference call.

Preliminary H1 2026 Financial Highlights (Unaudited) Preliminary H1 2026 revenue of approximately $11.4 million, an increase of 115% versus H1 2025 revenue, underscoring strong operating momentum across the group’s post-quantum semiconductor, digital identity and PKI businesses. Approximately $495 million in cash and short-t...