SEALSQ Stock Surges After Cybersecurity Deal With Landis+Gyr Expands To US Facilities

The company said its IneS Public Key Infrastructure solution will now be implemented in Landis+Gyr’s North American manufacturing facilities.
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Prabhjote Gill·Stocktwits
Updated Oct 13, 2025   |   11:16 AM GMT-04
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Shares of SEALSQ (LAES) gained as much as 13% in morning trade on Monday after the company announced an expansion of its cybersecurity partnership with Landis+Gyr. 

SEALSQ’s stock was among the top trending tickers on Stocktwits at the time of writing. Retail sentiment around the company continued to trend in ‘extremely bullish’ territory, accompanied by ‘extremely high’ levels of chatter. The stock has fallen more than 12% this year.

The company said its IneS Public Key Infrastructure (PKI) solution will now be deployed across Landis+Gyr’s North American manufacturing facilities, adding digital certificates to electric and gas meters during production. 

The deployment builds on prior European and Asian projects, including 30 million TEPCO meters in Japan. and complements an existing relationship providing VaultIC secure microcontrollers to more than one million gas meters annually in the UK. 

SEALSQ said the North American rollout ensures compliance with cybersecurity regulations while streamlining end-to-end security for grid edge devices interacting with inverters, EV chargers, and other IoT endpoints.

“Landis+Gyr has a long history of prioritizing cybersecurity for the grid,” said Todd Wiedman, Chief Security Officer at Landis+Gyr. “Expanding our relationship with SEALSQ in North America positions us to continue evolving our security strategy for utility customers into the future.”

This new partnership follows SEALSQ’s announcement last week of a strategic collaboration with Trusted Semiconductor Solutions (TSS) to co-develop “Made in U.S.” quantum-resistant secure chips for government and defense applications. The companies said the collaboration will adhere to the strictest U.S. defense security standards.

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