Sonexos SA is a Swiss deep-tech company headquartered in Lausanne that develops solid-state active noise control built on its patented plasmacoustic technology: a thin, software-controlled plasma layer that absorbs low-frequency noise electronically with no moving parts. Its Plasmapanel and Plasmadrive products target low-frequency noise in HVAC systems, domestic appliances and transportation, with an emerging application in AI data-centre cooling. The foundational technology is licensed exclusively from EPFL, where the principle was published in Nature Communications in 2023, and the company runs paid integration programmes with global appliance and HVAC OEMs, with additional operations in Milan, Auckland, San Jose and Hong Kong.
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Oct 21, 2026
Latest raise
Funding activity · 1 round
Oct 21, 2026
CHF 5M
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Led by Valquest Partners
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