What happened
SEALSQ Corp (WKEY) reported preliminary 9M 2026 revenue of $16.3 million, up 65% from $9.9 million in 9M 2025. The company kept FY 2026 revenue guidance at $27 million to $36 million and said Q4 2026 revenue should be between $11 million and $20 million. Cash, cash equivalents and restricted cash were about $463.0 million at September 30, 2026.
SEALSQ said VaultIC408 achieved NIST FIPS 140-3 Level 3 validation. It also said 42 prospective customers and partners were evaluating QVault TPM and QS7001. The company said the 9M gain came mainly from demand for the Vault-IC secure-element family, recurring PKI subscriptions, IC Alps SAS, and the Quantix Edge Security project in Murcia, Spain.
Key numbers
| Metric | Latest | Change | Source |
|---|---|---|---|
| Preliminary 9M 2026 revenue | $16.3 million | from $9.9 million, +65% | SEC 6-K press release |
| Cash, cash equivalents and restricted cash | approximately $463.0 million | SEC 6-K report | |
| FY 2026 revenue guidance | $27 million to $36 million | from $18 million, +50% to +100% | SEC 6-K press release |
| Q4 2026 revenue expected | between $11 million and $20 million | from $8.4 million | SEC 6-K press release |
| Prospective customers and partners evaluating QVault TPM and QS7001 | 42 customers and partners | from 30 customers and partners, +40% | SEC 6-K report |
Read more: SEALSQ (WKEY) stock analysis and investment case
Why it matters
The filing supports the view that SEALSQ can use its cash balance to build more recurring revenue. It showed a $6.4 million rise in 9M revenue and growth in recurring PKI subscriptions, certificate-management and digital identity services. It also said IC Alps SAS contributed about $3.8 million in 9M 2026, and the active pipeline was above $200 million through 2029.
SEALSQ said more than $100 million of that pipeline is tied to post-quantum projects, and those products should add more in 2027. The liquidity gives the company room to keep funding product work while it waits for post-quantum semiconductors to add more revenue. Management also said the figures are estimates and that conversion risk, customer validation, technical integration and other commercial risks can still block revenue.
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What's next
SEALSQ targets the QS7001 V1 Common Criteria Hardware Evaluation Test Report in October 2026 and the V2 full post-quantum report in January 2027. Formal CC EAL5+ certification is set to move ahead in 2027. The company expects fourth-quarter 2026 revenue of $11 million to $20 million.
It also plans QVault TPM183 TCG certification for February 2027 and QVault TPM185 for May 2027. A finish near the guided range and progress on certifications would support the case. Delays or weaker customer conversion would hurt it.
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Sources
- SEC 6-K press release of SEALSQ Corp — Exhibit 99.1 press release issued October 15, 2026.
- SEC Form 6-K of WISEQEY CORP — Filed October 16, 2026.
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Originally published on OptimistFi, evidence-first equity research. More at optimistfi.com.
